Document:

Exhibit 10.7

 

FORM OF INDEMNIFICATION AGREEMENT

 

THIS INDEMNIFICATION
AGREEMENT (this “Agreement”) is made as of [             ],
2020, by and between TORTOISE ACQUISITION CORP. II, a Cayman Islands exempted company (the “Company”),
and    (“Indemnitee”).

 

RECITALS

 

WHEREAS, highly
competent persons have become more reluctant to serve publicly-held corporations as directors or officers unless they are provided
with adequate protection through insurance or adequate indemnification against inordinate risks of claims and actions against them
arising out of their service to and activities on behalf of such corporations;

 

WHEREAS, the
board of directors of the Company (the “Board”) has determined that, in order to attract and retain qualified
individuals as directors and officers, the Company will attempt to maintain on an ongoing basis, at its sole expense, liability
insurance to protect such persons serving the Company and its subsidiaries from certain liabilities. Although the furnishing of
such insurance has been a customary and widespread practice among corporations and other business enterprises, the Company believes
that, given current market conditions and trends, such insurance may be available to it in the future only at higher premiums and
with more exclusions. At the same time, directors and officers are being increasingly subjected to expensive and time-consuming
litigation. The amended and restated memorandum and articles of association, as may be amended from time to time (the “Memorandum
and Articles”), of the Company require indemnification of the officers and directors of the Company. Indemnitee may
also be entitled to indemnification pursuant to applicable Cayman Islands law. The Memorandum and Articles expressly provides that
the indemnification provisions set forth therein are not exclusive, and thereby contemplate that contracts may be entered into
between the Company and members of the Board, officers and other persons with respect to indemnification, hold harmless, exoneration,
advancement and reimbursement rights;

 

WHEREAS, the
uncertainties relating to such insurance and to indemnification have increased the difficulty of attracting and retaining such
persons;

 

WHEREAS, the
Board has determined that the increased difficulty in attracting and retaining such persons is detrimental to the best interests
of the Company’s shareholders and that the Company should act to assure such persons that there will be increased certainty
of such protection in the future;

 

WHEREAS, it
is reasonable, prudent and necessary for the Company contractually to obligate itself to indemnify, hold harmless, exonerate and
to advance Expenses (as defined below) on behalf of such persons to the fullest extent permitted by applicable law so that they
will serve or continue to serve the Company free from undue concern that they will not be so protected against liabilities;

 

WHEREAS, this
Agreement is a supplement to and in furtherance of the Memorandum and Articles and any resolutions adopted pursuant thereto, and
shall not be deemed a substitute therefor, nor to diminish or abrogate any rights of Indemnitee thereunder; and

 

WHEREAS, Indemnitee
may not be willing to serve as an officer or director without adequate protection, and the Company desires Indemnitee to serve
in such capacity. Indemnitee is willing to serve or continue to serve for or on behalf of the Company on the condition that Indemnitee
be so indemnified.

 

     

     

    

 

NOW, THEREFORE,
in consideration of the premises and the covenants contained herein, the Company and Indemnitee do hereby covenant and agree as
follows:

 

TERMS AND CONDITIONS

 

1. 
SERVICES TO THE COMPANY. In consideration of the Company’s covenants and obligations hereunder, Indemnitee
will serve or continue to serve as an officer, director or key employee of the Company for so long as Indemnitee is duly elected
or appointed or until Indemnitee tenders Indemnitee’s resignation or until Indemnitee is removed. The foregoing notwithstanding,
this Agreement shall continue in full force and effect after Indemnitee has ceased to serve as a director or officer of the Company,
as provided in Section 17. This Agreement, however, shall not impose any obligation on Indemnitee or the Company to
continue Indemnitee’s service to the Company beyond any period otherwise required by law or by other agreements or commitments
of the parties, if any.

 

2. 
DEFINITIONS. As used in this Agreement:

 

(a) 
References to “agent” shall mean any person who is or was a director, officer or employee of the
Company or a subsidiary of the Company or other person authorized by the Company to act for the Company, to include such person
serving in such capacity as a director, officer, employee, fiduciary or other official of another corporation, partnership, limited
liability company, joint venture, trust or other enterprise at the request of, for the convenience of, or to represent the interests
of the Company or a subsidiary of the Company.

 

(b) 
The terms “Beneficial Owner” and “Beneficial Ownership” shall have the
meanings set forth in Rule 13d-3 promulgated under the Exchange Act (as defined below) as in effect on the date hereof.

 

(c) 
A “Change in Control” shall be deemed to occur upon the earliest to occur after the date of this
Agreement of any of the following events:

 

(i) 
Acquisition of Shares by Third Party. Other than Tortoise Sponsor II LLC, a Cayman Islands limited liability
company (the “Sponsor”), or any of the Sponsor’s affiliates, any Person (as defined below) is or
becomes the Beneficial Owner, directly or indirectly, of securities of the Company representing fifteen percent (15%) or more of
the combined voting power of the Company’s then outstanding securities entitled to vote generally in the election of directors,
unless (1) the change in the relative Beneficial Ownership of the Company’s securities by any Person results solely
from a reduction in the aggregate number of outstanding shares of securities entitled to vote generally in the election of directors,
or (2) such acquisition was approved in advance by the Continuing Directors (as defined below) and such acquisition would
not constitute a Change in Control under part (iii) of this definition;

 

(ii) 
Change in Board of Directors. Individuals who, as of the date hereof, constitute the Board, and any new director
whose election by the Board or nomination for election by the Company’s shareholders was approved by a vote of at least two
thirds of the directors then still in office who were directors on the date hereof or whose election for nomination for election
was previously so approved (collectively, the “Continuing Directors”), cease for any reason to constitute
at least a majority of the members of the Board;

 

(iii)  Corporate
Transactions. The effective date of a merger, amalgamation, share exchange, asset acquisition, share purchase,
reorganization or similar business combination involving the Company and one or more businesses or entities (a
“Business Combination”), in each case, unless, following such Business Combination: (1) all or
substantially all of the individuals and entities who were the Beneficial Owners of securities entitled to vote generally in
the election of directors immediately prior to such Business Combination beneficially own, directly or indirectly, more than
fifty-one percent (51%) of the combined voting power of the then outstanding securities of the Company entitled to vote
generally in the election of directors resulting from such Business Combination (including, without limitation, a corporation
which as a result of such transaction owns the Company or all or substantially all of the Company’s assets either
directly or through one or more Subsidiaries (as defined below)) in substantially the same proportions as their ownership
immediately prior to such Business Combination, of the securities entitled to vote generally in the election of directors;
(2) other than an affiliate of the Sponsor, no Person (excluding any corporation resulting from such Business
Combination) is the Beneficial Owner, directly or indirectly, of fifteen percent (15%) or more of the combined voting power
of the then outstanding securities entitled to vote generally in the election of directors of the surviving corporation
except to the extent that such ownership existed prior to the Business Combination; and (3) at
least a majority of the Board of Directors of the corporation resulting from such Business Combination were Continuing
Directors at the time of the execution of the initial agreement, or of the action of the Board of Directors, providing for
such Business Combination;

 

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(iv) 
Liquidation. The approval by the shareholders of the Company of a complete liquidation of the Company or an
agreement or series of agreements for the sale or disposition by the Company of all or substantially all of the Company’s
assets, other than factoring the Company’s current receivables or escrows due (or, if such shareholder approval is not required,
the decision by the Board to proceed with such a liquidation, sale or disposition in one transaction or a series of related transactions);
or

 

(v) 
Other Events. There occurs any other event of a nature that would be required to be reported in response to
Item 6(e) of Schedule 14A of Regulation 14A (or any successor rule) (or a response to any similar item on any similar
schedule or form) promulgated under the Exchange Act (as defined below), whether or not the Company is then subject to such reporting
requirement.

 

(d) 
“Companies Law” shall mean the Companies Law (2020 Revision) of the Cayman Islands, as amended
from time to time.

 

(e) 
“Corporate Status” describes the status of a person who is or was a director, officer, trustee,
general partner, manager, managing member, fiduciary, employee or agent of the Company or of any other Enterprise (as defined below)
which such person is or was Serving at the Request of the Company (as defined below).

 

(f) 
“Delaware Court” shall mean the Court of Chancery of the State of Delaware.

 

(g) 
“Disinterested Director” shall mean a director of the Company who is not and was not a party to
the Proceeding (as defined below) in respect of which indemnification is sought by Indemnitee.

 

(h) 
“Enterprise” shall mean the Company and any other corporation, constituent corporation (including
any constituent of a constituent) absorbed in a consolidation or merger to which the Company (or any of its wholly owned subsidiaries)
is a party, limited liability company, partnership, joint venture, trust, employee benefit plan or other enterprise of which Indemnitee
is or was Serving at the Request of the Company as a director, officer, trustee, manager, general partner, managing member, fiduciary,
employee or agent.

 

(i) “Exchange
Act” shall mean the Securities Exchange Act of 1934, as amended.

 

(j) 
“Expenses” shall include all reasonable direct and indirect costs, fees and expenses of any type
or nature whatsoever, including, without limitation, all reasonable attorneys’ fees and costs, retainers, court costs, transcript
costs, fees of experts, witness fees, travel expenses, fees of private investigators and professional advisors, duplicating costs,
printing and binding costs, telephone charges, postage, delivery service fees, fax transmission charges, secretarial services and
all other disbursements, obligations or expenses in connection with prosecuting, defending, preparing to prosecute or defend, investigating,
being or preparing to be a witness in, settlement or appeal of, or otherwise participating in, a Proceeding, including reasonable
compensation for time spent by Indemnitee for which he or she is not otherwise compensated by the Company or any third party. “Expenses”
also shall include expenses incurred in connection with any appeal resulting from any Proceeding, including without limitation
the principal, premium, security for, and other costs relating to any cost bond, supersedeas bond, or other appeal bond or its
equivalent. “Expenses,” however, shall not include amounts paid in settlement by Indemnitee or the amount of judgments
or Fines (as defined below) against Indemnitee.

 

(k) 
“Fines” shall include all fines, including without limitation any excise tax assessed on Indemnitee
with respect to any employee benefit plan and any fines imposed on Indemnitee by any governmental authority.

 

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(l)
“Independent Counsel” shall mean a law firm or a member of a law firm with significant experience
in matters of corporation law and that neither presently is, nor in the past five years has been, retained to represent:
(i) the Company or Indemnitee in any matter material to either such party (other than with respect to matters concerning
Indemnitee under this Agreement, or of other indemnitees under similar indemnification agreements) or (ii) any other
party to the Proceeding giving rise to a claim for indemnification hereunder. Notwithstanding the foregoing, the term
“Independent Counsel” shall not include any person who, under the applicable standards of professional conduct
then prevailing, would have a conflict of interest in representing either the Company or Indemnitee in an action to determine
Indemnitee’s rights under this Agreement.

 

(m) “Person”
shall have the meaning as set forth in Sections 13(d) and 14(d) of the Exchange Act as in effect on the date
hereof; provided, however, that “Person” shall exclude: (i) the Company; (ii) any Subsidiaries (as
defined below) of the Company; (iii) any employment benefit plan of the Company or of a Subsidiary (as defined below) of the
Company or of any corporation owned, directly or indirectly, by the shareholders of the Company in substantially the same proportions
as their ownership of shares of the Company; and (iv) any trustee or other fiduciary holding securities under an employee
benefit plan of the Company or of a Subsidiary of the Company or of a corporation owned directly or indirectly by the shareholders
of the Company in substantially the same proportions as their ownership of shares of the Company.

 

(n) “Proceeding”
shall include any threatened, pending or completed action, suit, arbitration, mediation, alternate dispute resolution mechanism,
investigation, inquiry, administrative hearing or any other actual, threatened or completed proceeding, whether brought in the
right of the Company or otherwise and whether of a civil (including intentional or unintentional tort claims), criminal, administrative,
legislative or investigative nature, in which Indemnitee was, is, will or might be involved as a party, potential party, non-party
witness or otherwise by reason of the fact that Indemnitee is or was a director or officer of the Company, by reason of any action
(or failure to act) taken by Indemnitee or of any action (or failure to act) on Indemnitee’s part while acting as a director
or officer of the Company, or by reason of the fact that Indemnitee is or was Serving at the Request of the Company as a director,
officer, trustee, general partner, managing member, fiduciary, employee or agent of any other Enterprise, in each case whether
or not serving in such capacity at the time any liability or Expense is incurred for which indemnification, reimbursement or advancement
of Expenses can be provided under this Agreement.

 

(o) “Serving
at the Request of the Company” shall include any service as a director, officer, employee, agent or fiduciary of
the Company which imposes duties on, or involves services by, such director, officer, employee, agent or fiduciary with respect
to an employee benefit plan, its participants or beneficiaries; and if Indemnitee acted in good faith and in a manner Indemnitee
reasonably believed to be in the best interests of the participants and beneficiaries of an employee benefit plan, Indemnitee shall
be deemed to have acted in a manner “not opposed to the best interests of the Company” as referred to in this Agreement.

 

(p) “Subsidiary,”
with respect to any Person, shall mean any corporation, limited liability company, partnership, joint venture, trust or other entity
of which a majority of the voting power of the voting equity securities or equity interest is owned, directly or indirectly, by
that Person.

 

3. INDEMNITY
IN THIRD-PARTY PROCEEDINGS. To the fullest extent permitted by applicable law and the Memorandum and Articles, the Company
shall indemnify, hold harmless and exonerate Indemnitee in accordance with the provisions of this Section 3 if Indemnitee
was, is or is threatened to be made, a party to or a participant (as a witness, deponent or otherwise) in any Proceeding, other
than a Proceeding by or in the right of the Company to procure a judgment in its favor by reason of Indemnitee’s Corporate
Status. Pursuant to this Section 3, Indemnitee shall be indemnified, held harmless and exonerated against all Expenses,
judgments, liabilities, Fines, penalties and amounts paid in settlement (including all interest, assessments and other charges
paid or payable in connection with or in respect of such Expenses, judgments, Fines, penalties and amounts paid in settlement)
actually, and reasonably incurred by Indemnitee or on Indemnitee’s behalf in connection with such Proceeding or any claim,
issue or matter therein, if Indemnitee acted in good faith and in a manner Indemnitee reasonably believed to be in or not opposed
to the best interests of the Company and, in the case of a criminal Proceeding, had no reasonable cause to believe that Indemnitee’s
conduct was unlawful.

 

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4. INDEMNITY
IN PROCEEDINGS BY OR IN THE RIGHT OF THE COMPANY. To the fullest extent permitted by applicable law and the Memorandum
and Articles, the Company shall indemnify, hold harmless and exonerate Indemnitee in accordance with the provisions of this Section 4
if Indemnitee was, is or is threatened to be made, a party to or a participant (as a witness, deponent or otherwise) in any Proceeding
by or in the right of the Company to procure a judgment in its favor by reason of Indemnitee’s Corporate Status. Pursuant
to this Section 4, Indemnitee shall be indemnified, held harmless and exonerated against all Expenses actually and
reasonably incurred by Indemnitee or on Indemnitee’s behalf in connection with such Proceeding or any claim, issue or matter
therein, if Indemnitee acted in good faith and in a manner Indemnitee reasonably believed to be in or not opposed to the best interests
of the Company. Notwithstanding the foregoing, no indemnification, hold harmless or exoneration for Expenses shall be made under
this Section 4 in respect of any claim, issue or matter as to which Indemnitee shall have been finally adjudged by
a court to be liable to the Company, unless and only to the extent that any court in which the Proceeding was brought or the Delaware
Court shall determine upon application that, despite the adjudication of liability but in view of all the circumstances of the
case, Indemnitee is fairly and reasonably entitled to indemnification, to be held harmless or to exoneration.

 

5. INDEMNIFICATION
FOR EXPENSES OF A PARTY WHO IS WHOLLY OR PARTLY SUCCESSFUL. Notwithstanding any other provision of this Agreement (other
than the provisions of Section 27 hereof), to the extent that Indemnitee was or is, by reason of Indemnitee’s Corporate
Status, a party to (or a participant in) and is successful, on the merits or otherwise, in any Proceeding or in defense of any
claim, issue or matter therein, in whole or in part, the Company shall, to the fullest extent permitted by applicable law and the
Memorandum and Articles, indemnify, hold harmless and exonerate Indemnitee against all Expenses actually and reasonably incurred
by Indemnitee in connection therewith. If Indemnitee is not wholly successful in such Proceeding but is successful, on the merits
or otherwise, as to one or more but less than all claims, issues or matters in such Proceeding, the Company shall, to the fullest
extent permitted by applicable law and the Memorandum and Articles, indemnify, hold harmless and exonerate Indemnitee against all
Expenses actually and reasonably incurred by Indemnitee or on Indemnitee’s behalf in connection with each successfully resolved
claim, issue or matter. If Indemnitee is not wholly successful in such Proceeding, the Company also shall, to the fullest extent
permitted by applicable law and the Memorandum and Articles, indemnify, hold harmless and exonerate Indemnitee against all Expenses
reasonably incurred in connection with a claim, issue or matter related to any claim, issue or matter on which Indemnitee was successful.
For purposes of this Section 5 and without limitation, the termination of any claim, issue or matter in such a Proceeding
by dismissal, with or without prejudice, shall be deemed to be a successful result as to such claim, issue or matter.

 

6. INDEMNIFICATION
FOR EXPENSES OF A WITNESS. Notwithstanding any other provision of this Agreement (other than the provisions of Section
27 hereof), to the extent that Indemnitee is, by reason of Indemnitee’s Corporate Status, a witness or deponent in any
Proceeding to which Indemnitee was or is not a party or threatened to be made a party, Indemnitee shall, to the fullest extent
permitted by applicable law and the Memorandum and Articles, be indemnified, held harmless and exonerated against all Expenses
actually and reasonably incurred by Indemnitee or on Indemnitee’s behalf in connection therewith.

 

7. CONTRIBUTION
IN THE EVENT OF JOINT LIABILITY.

 

(a) To
the fullest extent permissible under applicable law and the Memorandum and Articles, if the indemnification, hold harmless and/or
exoneration rights provided for in this Agreement are unavailable to Indemnitee in whole or in part for any reason whatsoever,
the Company, in lieu of indemnifying, holding harmless or exonerating Indemnitee, shall pay, in the first instance, the entire
amount incurred by Indemnitee, whether for judgments, liabilities, Fines, penalties, amounts paid or to be paid in settlement and/or
for Expenses, in connection with any Proceeding without requiring Indemnitee to contribute to such payment, and the Company hereby
waives and relinquishes any right of contribution it may have at any time against Indemnitee.

 

(b) The
Company shall not enter into any settlement of any Proceeding in which the Company is jointly liable with Indemnitee (or would
be if joined in such Proceeding) unless such settlement provides for a full and final release of all claims asserted against Indemnitee.

 

(c) The
Company hereby agrees to fully indemnify, hold harmless and exonerate Indemnitee from any claims for contribution which may be
brought by officers, directors or employees of the Company other than Indemnitee who may be jointly liable with Indemnitee.

 

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8. EXCLUSIONS.
Notwithstanding any provision in this Agreement, the Company shall not be obligated under this Agreement to make any indemnification,
advance of Expenses, hold harmless or exoneration payment in connection with any claim made against Indemnitee:

 

(a) for
which payment has actually been received by or on behalf of Indemnitee under any insurance policy, contract, agreement or other
indemnity or advancement provision or otherwise, except (i) with respect to any excess beyond the amount actually received under
any insurance policy, contract, agreement, other indemnity or advancement provision or otherwise and (ii) as provided in Section
9 hereof;

 

(b) for
an accounting of profits made from the purchase and sale (or sale and purchase) by Indemnitee of securities of the Company within
the meaning of Section 16(b) of the Exchange Act (or any successor rule) or similar provisions of state statutory law or common
law; or

 

(c) except
as otherwise provided in Sections 14(f)-(g) hereof, prior to a Change in Control, in connection with any Proceeding
(or any part of any Proceeding) initiated by Indemnitee, including any Proceeding (or any part of any Proceeding) initiated by
Indemnitee against the Company or its directors, officers, employees or other indemnitees, unless (i) the Board authorized
the Proceeding (or any part of any Proceeding) prior to its initiation or (ii) the Company provides the indemnification, advance
of Expenses, hold harmless or exoneration payment, in its sole discretion, pursuant to the powers vested in the Company under applicable
law. Indemnitee shall seek payments or advances from the Company only to the extent that such payments or advances are unavailable
from any insurance policy of the Company covering Indemnitee.

 

9. INDEMNITOR
OF FIRST RESORT. The Company hereby acknowledges that Indemnitee may have certain rights to indemnification, advancement
of Expenses and/or insurance provided by one or more Persons with whom or which Indemnitee may be associated (collectively, the
“Alternative Indemnitors”). The Company hereby agrees (i) that it is the indemnitor of first resort (i.e.,
its obligations to Indemnitee are primary and any obligation of the Alternative Indemnitors to advance Expenses or to provide indemnification
for the same Expenses or liabilities incurred by Indemnitee are secondary), (ii) that it shall be required to advance the full
amount of Expenses incurred by Indemnitee and shall be liable for the full amount of all Expenses, judgments, penalties, Fines
and amounts paid in settlement to the extent legally permitted and as required by the terms of this Agreement and the Memorandum
and Articles of the Company (or any other agreement between the Company and Indemnitee), without regard to any rights Indemnitee
may have against the Alternative Indemnitors, and (iii) that it irrevocably waives, relinquishes and releases the Alternative Indemnitors
from any and all claims against the Alternative Indemnitors for contribution, subrogation or any other recovery of any kind in
respect thereof. The Company further agrees that no advancement or payment by the Alternative Indemnitors on behalf of Indemnitee
with respect to any claim for which Indemnitee has sought indemnification from the Company shall affect the foregoing and the Alternative
Indemnitors shall have a right of contribution and/or be subrogated to the extent of such advancement or payment to all of the
rights of recovery of Indemnitee against the Company. The Company and Indemnitee agree that the Alternative Indemnitors are express
third party beneficiaries of the terms of this Section 9.

 

10. ADVANCES
OF EXPENSES; DEFENSE OF CLAIM.

 

(a) Notwithstanding
any provision of this Agreement to the contrary (other than the provisions of Section 27 hereof), and to the fullest extent
not prohibited by applicable law or the Memorandum and Articles, the Company shall pay the Expenses incurred by Indemnitee (or
reasonably expected by Indemnitee to be incurred by Indemnitee within three (3) months) in connection with any Proceeding within
ten (10) days after the receipt by the Company of a statement or statements requesting such advances from time to time, prior to
the final disposition of any Proceeding. Advances shall, to the fullest extent permitted by law, be unsecured and interest free.
Advances shall, to the fullest extent permitted by law, be made without regard to Indemnitee’s ability to repay the Expenses
and without regard to Indemnitee’s ultimate entitlement to be indemnified, held harmless or exonerated under the other provisions
of this Agreement. Advances shall include any and all reasonable Expenses incurred pursuing a Proceeding to enforce this right
of advancement, including Expenses incurred preparing and forwarding statements to the Company to support the advances claimed.
To the fullest extent required by applicable law and the Memorandum and Articles, such payments of Expenses in advance of the final
disposition of the Proceeding shall be made only upon the Company’s receipt of an undertaking, by or on behalf of Indemnitee,
to repay the advanced amounts to the extent that it is ultimately determined that Indemnitee is not entitled to be indemnified,
held harmless or exonerated by the Company under the provisions of this Agreement, the Memorandum and Articles, applicable law
or otherwise. This Section 10(a) shall not apply to any claim made by Indemnitee for which an indemnification, advance
of Expenses, hold harmless or exoneration payment is excluded pursuant to Section 8.

 

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(b) The
Company will be entitled to participate in the Proceeding at its own expense.

 

(c) The
Company shall not settle any action, claim or Proceeding (in whole or in part) which would impose any Expense, judgment, liability,
Fine, penalty or limitation on Indemnitee without Indemnitee’s prior written consent.

 

11. PROCEDURE
FOR NOTIFICATION AND APPLICATION FOR INDEMNIFICATION.

 

(a) Indemnitee
agrees to promptly notify the Company in writing upon being served with any summons, citation, subpoena, complaint, indictment,
information or other document relating to any Proceeding, claim, issue or matter therein which may be subject to indemnification,
hold harmless or exoneration rights, or advancement of Expenses covered hereunder. The failure of Indemnitee to so notify the Company
shall not relieve the Company of any obligation which it may have to Indemnitee under this Agreement, or otherwise.

 

(b) Indemnitee
may deliver to the Company a written application to indemnify, hold harmless or exonerate Indemnitee in accordance with this Agreement.
Such application(s) may be delivered from time to time and at such time(s) as Indemnitee deems appropriate in Indemnitee’s
sole discretion. Following such a written application for indemnification by Indemnitee, Indemnitee’s entitlement to indemnification
shall be determined according to Section 12(a) of this Agreement.

 

12. PROCEDURE
UPON APPLICATION FOR INDEMNIFICATION.

 

(a) A
determination, if required by applicable law or the Memorandum and Articles, with respect to Indemnitee’s entitlement to
indemnification shall be made in the specific case by one of the following methods, which shall be at the election of Indemnitee:
(i) by a majority vote of the Disinterested Directors, even though less than a quorum of the Board or (ii) by Independent
Counsel in a written opinion to the Board, a copy of which shall be delivered to Indemnitee. The Company will promptly advise Indemnitee
in writing with respect to any determination that Indemnitee is or is not entitled to indemnification, including a description
of any reason or basis for which indemnification has been denied. If it is so determined that Indemnitee is entitled to indemnification,
payment to Indemnitee shall be made within ten (10) days after such determination. Indemnitee shall reasonably cooperate with the
person, persons or entity making such determination with respect to Indemnitee’s entitlement to indemnification, including
providing to such person, persons or entity upon reasonable advance request any documentation or information which is not privileged
or otherwise protected from disclosure and which is reasonably available to Indemnitee and reasonably necessary to such determination.
Any costs or Expenses (including reasonable attorneys’ fees and disbursements) incurred by Indemnitee in so cooperating with
the person, persons or entity making such determination shall be borne by the Company (irrespective of the determination as to
Indemnitee’s entitlement to indemnification) and the Company hereby agrees to indemnify and to hold Indemnitee harmless therefrom.

 

(b) In
the event the determination of entitlement to indemnification is to be made by Independent Counsel pursuant to Section 12(a)
hereof, the Independent Counsel shall be selected as provided in this Section 12(b). The Independent Counsel shall
be selected by Indemnitee (unless Indemnitee shall request that such selection be made by the Board), and Indemnitee shall give
written notice to the Company advising it of the identity of the Independent Counsel so selected and certifying that the Independent
Counsel so selected meets the requirements of “Independent Counsel” as defined in Section 2 of this Agreement.
If the Independent Counsel is selected by the Board, the Company shall give written notice to Indemnitee advising Indemnitee of
the identity of the Independent Counsel so selected and certifying that the Independent Counsel so selected meets the requirements
of “Independent Counsel” as defined in Section 2 of this Agreement. In either event, Indemnitee or the
Company, as the case may be, may, within ten (10) days after such written notice of selection shall have been received, deliver
to the Company or to Indemnitee, as the case may be, a written objection to such selection; provided, however, that such
objection may be asserted only on the ground that the Independent Counsel so selected does not meet the requirements of “Independent
Counsel” as defined in Section 2 of this Agreement, and the objection shall set forth with particularity the
factual basis of such assertion. Absent a proper and timely objection, the person or law firm so selected shall act as Independent
Counsel. If such written objection is so made and substantiated, the Independent Counsel so selected may not serve as Independent
Counsel unless and until such objection is withdrawn or a court of competent jurisdiction has determined that such objection is
without merit. If, within twenty (20) days after submission by Indemnitee of a written request for indemnification pursuant to
Section 11(b) hereof, no Independent Counsel shall have been selected and not objected to, either the Company or Indemnitee
may petition the Delaware Court for resolution of any objection which shall have been made by the Company or Indemnitee to the
other’s selection of Independent Counsel and/or for the appointment as Independent Counsel of a person selected by the Delaware
Court, and the person with respect to whom all objections are so resolved or the person so appointed shall act as Independent Counsel
under Section 12(a) hereof. Upon the due commencement of any judicial proceeding or arbitration pursuant to Section 14(a)
of this Agreement, Independent Counsel shall be discharged and relieved of any further responsibility in such capacity (subject
to the applicable standards of professional conduct then prevailing).

 

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(c) The
Company agrees to pay the reasonable fees and expenses of Independent Counsel and to fully indemnify and hold harmless such Independent
Counsel against any and all Expenses, claims, liabilities and damages arising out of or relating to this Agreement or such Independent
Counsel’s engagement pursuant hereto.

 

13. PRESUMPTIONS
AND EFFECT OF CERTAIN PROCEEDINGS.

 

(a) In
making a determination with respect to entitlement to indemnification hereunder, the person, persons or entity making such determination
shall presume that Indemnitee is entitled to indemnification under this Agreement if Indemnitee has submitted a request for indemnification
in accordance with Section 11(b) of this Agreement, and the Company shall have the burden of proof to overcome that
presumption in connection with the making by any person, persons or entity of any determination contrary to that presumption. Neither
the failure of the Company (including by the Disinterested Directors or Independent Counsel) to have made a determination prior
to the commencement of any action pursuant to this Agreement that indemnification is proper in the circumstances because Indemnitee
has met the applicable standard of conduct, nor an actual determination by the Company (including by the Disinterested Directors
or Independent Counsel) that Indemnitee has not met such applicable standard of conduct, shall be a defense to the action or create
a presumption that Indemnitee has not met the applicable standard of conduct.

 

(b) If
the person, persons or entity empowered or selected under Section 12 of this Agreement to determine whether Indemnitee
is entitled to indemnification shall not have made a determination within thirty (30) days after receipt by the Company of the
request therefor, the requisite determination of entitlement to indemnification shall, to the fullest extent permitted by law,
be deemed to have been made and Indemnitee shall be entitled to such indemnification, absent (i) a misstatement by Indemnitee
of a material fact, or an omission of a material fact necessary to make Indemnitee’s statement not materially misleading,
in connection with the request for indemnification, or (ii) a final judicial determination that any or all such indemnification
is expressly prohibited under applicable law; provided, however, that such thirty-day period may be extended for a reasonable
time, not to exceed an additional fifteen (15) days, if the person, persons or entity making the determination with respect to
entitlement to indemnification in good faith requires such additional time for the obtaining or evaluating of documentation and/or
information relating thereto.

 

(c) The
termination of any Proceeding or of any claim, issue or matter therein, by judgment, order, settlement or conviction, or upon a
plea of nolo contendere or its equivalent, shall not (except as otherwise expressly provided in this Agreement) of itself adversely
affect the right of Indemnitee to indemnification or create a presumption that Indemnitee did not act in good faith and in a manner
which Indemnitee reasonably believed to be in or not opposed to the best interests of the Company or, with respect to any criminal
Proceeding, that Indemnitee had reasonable cause to believe that Indemnitee’s conduct was unlawful.

 

(d) For
purposes of any determination of good faith, Indemnitee shall be deemed to have acted in good faith if Indemnitee’s action
is based on the records or books of account of the Enterprise, including financial statements, or on information supplied to Indemnitee
by the directors, managers or officers of the Enterprise in the course of their duties, or on the advice of legal counsel for the
Enterprise, the Board, any committee of the Board or any director, trustee, general partner, manager or managing member of the
Enterprise, or on information or records given or reports made to the Enterprise, the Board, any committee of the Board or any
director, trustee, general partner, manager or managing member of the Enterprise, by an independent certified public accountant
or by an appraiser or other expert selected by the Enterprise, the Board, any committee of the Board or any director, trustee,
general partner, manager or managing member of the Enterprise. The provisions of this Section 13(d) shall not be deemed
to be exclusive or to limit in any way the other circumstances in which Indemnitee may be deemed or found to have met the applicable
standard of conduct set forth in this Agreement.

 

    	 	8	 

     

    

 

(e) The
knowledge and/or actions, or failure to act, of any other director, officer, trustee, partner, manager, managing member, fiduciary,
agent or employee of the Enterprise shall not be imputed to Indemnitee for purposes of determining the right to indemnification
under this Agreement.

 

14. REMEDIES
OF INDEMNITEE.

 

(a) In
the event that (i) a determination is made pursuant to Section 12 of this Agreement that Indemnitee is not entitled
to indemnification under this Agreement, (ii) advancement of Expenses is not timely made pursuant to Section 10
of this Agreement, (iii) no determination of entitlement to indemnification shall have been made pursuant to Section 12(a)
of this Agreement within thirty (30) days after receipt by the Company of the request for indemnification, (iv) payment of
indemnification is not made pursuant to Section 5, 6 or the last sentence of Section 12(a) of this
Agreement within ten (10) days after receipt by the Company of a written request therefor, (v) a contribution payment is not
made in a timely manner pursuant to Section 7 of this Agreement, (vi) payment of indemnification pursuant to Section 3
or 4 of this Agreement is not made within ten (10) days after a determination has been made that Indemnitee is entitled
to indemnification or (vii) payment to Indemnitee pursuant to any hold harmless or exoneration rights under this Agreement
or otherwise is not made in accordance with this Agreement, Indemnitee shall be entitled to an adjudication by the Delaware Court
to such indemnification, hold harmless, exoneration, contribution or advancement rights. Alternatively, Indemnitee, at Indemnitee’s
option, may seek an award in arbitration to be conducted by a single arbitrator pursuant to the Commercial Arbitration Rules of
the American Arbitration Association. Except as set forth herein, the provisions of Delaware law (without regard to its conflict
of laws rules) shall apply to any such arbitration. The Company shall not oppose Indemnitee’s right to seek any such adjudication
or award in arbitration.

 

(b) In
the event that a determination shall have been made pursuant to Section 12(a) of this Agreement that Indemnitee is
not entitled to indemnification, any judicial proceeding or arbitration commenced pursuant to this Section 14 shall
be conducted in all respects as a de novo trial, or arbitration, on the merits and Indemnitee shall not be prejudiced by reason
of that adverse determination.

 

(c) In
any judicial proceeding or arbitration commenced pursuant to this Section 14, Indemnitee shall be presumed to be entitled
to be indemnified, held harmless, exonerated and to receive advancement of Expenses under this Agreement and the Company shall
have the burden of proving Indemnitee is not entitled to be indemnified, held harmless, exonerated and to receive advancement of
Expenses, as the case may be, and the Company may not refer to or introduce into evidence any determination pursuant to Section 12(a)
of this Agreement adverse to Indemnitee for any purpose. If Indemnitee commences a judicial proceeding or arbitration pursuant
to this Section 14, Indemnitee shall not be required to reimburse the Company for any advances pursuant to Section 10
until a final determination is made with respect to Indemnitee’s entitlement to indemnification (as to which all rights of
appeal have been exhausted or lapsed).

 

(d) If
a determination shall have been made pursuant to Section 12(a) of this Agreement that Indemnitee is entitled to indemnification,
the Company shall be bound by such determination in any judicial proceeding or arbitration commenced pursuant to this Section 14,
absent (i) a misstatement by Indemnitee of a material fact, or an omission of a material fact necessary to make Indemnitee’s
statement not materially misleading, in connection with the request for indemnification, or (ii) a prohibition of such indemnification
under applicable law.

 

(e) The
Company shall be precluded from asserting in any judicial proceeding or arbitration commenced pursuant to this Section 14
that the procedures and presumptions of this Agreement are not valid, binding and enforceable and shall stipulate in any such court
or before any such arbitrator that the Company is bound by all the provisions of this Agreement.

 

    	 	9	 

     

    

 

(f) The
Company shall indemnify and hold harmless Indemnitee to the fullest extent permitted by law against all Expenses and, if requested
by Indemnitee, shall (within ten (10) days after the Company’s receipt of such written request) pay to Indemnitee, to the
fullest extent permitted by applicable law and the Memorandum and Articles, such Expenses which are incurred by Indemnitee in connection
with any judicial proceeding or arbitration brought by Indemnitee: (i) to enforce Indemnitee’s rights under, or to recover
damages for breach of, this Agreement or any other indemnification, hold harmless, exoneration, advancement or contribution agreement
or provision of the Memorandum and Articles now or hereafter in effect; or (ii) for recovery or advances under any insurance
policy maintained by any person for the benefit of Indemnitee, regardless of the outcome and whether Indemnitee ultimately is determined
to be entitled to such indemnification, hold harmless or exoneration right, advancement, contribution or insurance recovery, as
the case may be (unless such judicial proceeding or arbitration was not brought by Indemnitee in good faith).

 

(g) Interest
shall be paid by the Company to Indemnitee at the legal rate under Delaware law for amounts which the Company indemnifies, holds
harmless or exonerates, or advances, or is obliged to indemnify, hold harmless or exonerate or advance for the period commencing
with the date on which Indemnitee requests indemnification, to be held harmless, exonerated, contribution, reimbursement or advancement
of any Expenses and ending with the date on which such payment is made to Indemnitee by the Company.

 

15. SECURITY.
Notwithstanding anything herein to the contrary, to the extent requested by Indemnitee and approved by the Board, the Company may
at any time and from time to time provide security to Indemnitee for the Company’s obligations hereunder through an irrevocable
bank line of credit, funded trust or other collateral. Any such security, once provided to Indemnitee, may not be revoked or released
without the prior written consent of Indemnitee.

 

16. NON-EXCLUSIVITY;
SURVIVAL OF RIGHTS; INSURANCE; SUBROGATION.

 

(a) The
rights of Indemnitee as provided by this Agreement shall not be deemed exclusive of any other rights to which Indemnitee may at
any time be entitled under applicable law, the Memorandum and Articles, any agreement, a vote of shareholders or a resolution of
directors, or otherwise. No amendment, alteration or repeal of this Agreement or of any provision hereof shall limit or restrict
any right of Indemnitee under this Agreement in respect of any Proceeding (regardless of when such Proceeding is first threatened,
commenced or completed) or claim, issue or matter therein arising out of, or related to, any action taken or omitted by such Indemnitee
in Indemnitee’s Corporate Status prior to such amendment, alteration or repeal. To the extent that a change in applicable
law, whether by statute or judicial decision, permits greater indemnification, hold harmless or exoneration rights or advancement
of Expenses than would be afforded currently under the Memorandum and Articles or this Agreement, it is the intent of the parties
hereto that Indemnitee shall enjoy by this Agreement the greater benefits so afforded by such change. No right or remedy herein
conferred is intended to be exclusive of any other right or remedy, and every other right and remedy shall be cumulative and in
addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion
or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other
right or remedy.

 

(b) The
Companies Law and the Memorandum and Articles permit the Company to purchase and maintain insurance or furnish similar protection
or make other arrangements including, but not limited to, providing a trust fund, letter of credit, or surety bond (“Indemnification
Arrangements”) on behalf of Indemnitee against any liability asserted against Indemnitee or incurred by or on behalf
of Indemnitee or in such capacity as a director, officer, employee or agent of the Company, or arising out of Indemnitee’s
status as such, whether or not the Company would have the power to indemnify Indemnitee against such liability under the provisions
of this Agreement or under the Companies Law, as it may then be in effect. The purchase, establishment and maintenance of any such
Indemnification Arrangement shall not in any way limit or affect the rights and obligations of the Company or of Indemnitee under
this Agreement except as expressly provided herein, and the execution and delivery of this Agreement by the Company and Indemnitee
shall not in any way limit or affect the rights and obligations of the Company or the other party or parties thereto under any
such Indemnification Arrangement.

 

    	 	10	 

     

    

 

(c) To
the extent that the Company maintains an insurance policy or policies providing liability insurance for directors, officers, trustees,
partners, managers, managing members, fiduciaries, employees or agents of the Company or of any other Enterprise which such person
is or was Serving at the Request of the Company, Indemnitee shall be covered by such policy or policies in accordance with its
or their terms to the maximum extent of the coverage available for any such director, officer, trustee, partner, managers, managing
member, fiduciary, employee or agent under such policy or policies. If, at the time the Company receives notice from any source
of a Proceeding as to which Indemnitee is a party or a participant (as a witness, deponent or otherwise), the Company has director
and officer liability insurance in effect, the Company shall give prompt notice of such Proceeding to the insurers in accordance
with the procedures set forth in the respective policies. The Company shall thereafter take all necessary or desirable action to
cause such insurers to pay, on behalf of Indemnitee, all amounts payable as a result of such Proceeding in accordance with the
terms of such policies.

 

(d) In
the event of any payment under this Agreement, the Company, to the fullest extent permitted by law, shall be subrogated to the
extent of such payment to all of the rights of recovery of Indemnitee, who shall execute all papers required and take all action
necessary to secure such rights, including execution of such documents as are necessary to enable the Company to bring suit to
enforce such rights.

 

(e) The
Company’s obligation to indemnify, hold harmless, exonerate or advance Expenses hereunder to Indemnitee who is or was Serving
at the Request of the Company as a director, officer, trustee, partner, manager, managing member, fiduciary, employee or agent
of any other Enterprise shall be reduced by any amount Indemnitee has actually received as indemnification, hold harmless or exoneration
payments or advancement of Expenses from such Enterprise. Notwithstanding any other provision of this Agreement to the contrary,
(i) Indemnitee shall have no obligation to reduce, offset, allocate, pursue or apportion any indemnification, hold harmless,
exoneration, advancement, contribution or insurance coverage among multiple parties possessing such duties to Indemnitee prior
to the Company’s satisfaction and performance of all its obligations under this Agreement and (ii) the Company shall
perform fully its obligations under this Agreement without regard to whether Indemnitee holds, may pursue or has pursued any indemnification,
advancement, hold harmless, exoneration, contribution or insurance coverage rights against any person or entity other than the
Company.

 

17. DURATION
OF AGREEMENT. All agreements and obligations of the Company contained herein shall continue during the period Indemnitee
serves as a director or officer of the Company or as a director, officer, trustee, partner, manager, managing member, fiduciary,
employee or agent of any other corporation, partnership, joint venture, trust, employee benefit plan or other Enterprise which
Indemnitee is Serving at the Request of the Company and shall continue thereafter so long as Indemnitee shall be subject to any
possible Proceeding (including any rights of appeal thereto and any Proceeding commenced by Indemnitee pursuant to Section 14
of this Agreement) by reason of Indemnitee’s Corporate Status, whether or not Indemnitee is acting in any such capacity at
the time any liability or Expense is incurred for which indemnification or advancement can be provided under this Agreement.

 

18. SEVERABILITY.
If any provision or provisions of this Agreement shall be held to be invalid, illegal or unenforceable for any reason whatsoever:
(a) the validity, legality and enforceability of the remaining provisions of this Agreement (including, without limitation,
each portion of any Section, paragraph or sentence of this Agreement containing any such provision held to be invalid, illegal
or unenforceable, that is not itself invalid, illegal or unenforceable) shall not in any way be affected or impaired thereby and
shall remain enforceable to the fullest extent permitted by law; (b) such provision or provisions shall be deemed reformed
to the extent necessary to conform to applicable law and to give the maximum effect to the intent of the parties hereto; and (c) to
the fullest extent possible, the provisions of this Agreement (including, without limitation, each portion of any Section, paragraph
or sentence of this Agreement containing any such provision held to be invalid, illegal or unenforceable, that is not itself invalid,
illegal or unenforceable) shall be construed so as to give effect to the intent manifested thereby.

 

19. ENFORCEMENT
AND BINDING EFFECT.

 

(a) The
Company expressly confirms and agrees that it has entered into this Agreement and assumed the obligations imposed on it hereby
in order to induce Indemnitee to serve as a director, officer or key employee of the Company, and the Company acknowledges that
Indemnitee is relying upon this Agreement in serving as a director, officer or key employee of the Company.

 

    	 	11	 

     

    

 

(b) Without
limiting any of the rights of Indemnitee under the Memorandum and Articles as they may be amended from time to time, this Agreement
constitutes the entire agreement between the parties hereto with respect to the subject matter hereof and supersedes all prior
agreements and understandings, oral, written and implied, between the parties hereto with respect to the subject matter hereof.

 

(c) The
indemnification, hold harmless, exoneration and advancement of Expenses rights provided by or granted pursuant to this Agreement
shall be binding upon and be enforceable by the parties hereto and their respective successors and assigns (including any direct
or indirect successor by purchase, merger, consolidation or otherwise to all or substantially all of the business and/or assets
of the Company), shall continue as to an Indemnitee who has ceased to be a director, officer employee or agent of the Company or
a director, officer, trustee, general partner, manager, managing member, fiduciary, employee or agent of any other Enterprise at
the Company’s request, and shall inure to the benefit of Indemnitee and Indemnitee’s spouse, assigns, heirs, devisees,
executors and administrators and other legal representatives.

 

(d) The
Company shall require and cause any successor (whether direct or indirect by purchase, merger, consolidation or otherwise) to all,
substantially all or a substantial part of the business and/or assets of the Company, by written agreement in form and substance
satisfactory to Indemnitee, expressly to assume and agree to perform this Agreement in the same manner and to the same extent that
the Company would be required to perform if no such succession had taken place.

 

(e) The
Company and Indemnitee agree herein that a monetary remedy for breach of this Agreement, at some later date, may be inadequate,
impracticable and difficult to prove, and further agree that such breach may cause Indemnitee irreparable harm. Accordingly, the
parties hereto agree that Indemnitee may, to the fullest extent permitted by law, enforce this Agreement by seeking, among other
things, injunctive relief and/or specific performance hereof, without any necessity of showing actual damage or irreparable harm
and that by seeking injunctive relief and/or specific performance, Indemnitee shall not be precluded from seeking or obtaining
any other relief to which Indemnitee may be entitled. The Company and Indemnitee further agree that Indemnitee shall, to the fullest
extent permitted by law, be entitled to such specific performance and injunctive relief, including temporary restraining orders,
preliminary injunctions and permanent injunctions, without the necessity of posting bonds or other undertaking in connection therewith.
The Company acknowledges that in the absence of a waiver, a bond or undertaking may be required of Indemnitee by a court of competent
jurisdiction. The Company hereby waives any such requirement of such a bond or undertaking to the fullest extent permitted by law.

 

20. MODIFICATION
AND WAIVER. No supplement, modification or amendment of this Agreement shall be binding unless executed in writing by the
Company and Indemnitee. No waiver of any of the provisions of this Agreement shall be deemed or shall constitute a waiver of any
other provisions of this Agreement nor shall any waiver constitute a continuing waiver.

 

21. NOTICES.
All notices, requests, demands and other communications under this Agreement shall be in writing and shall be deemed to have been
duly given (a) if delivered by hand and receipted for by the party to whom said notice or other communication shall have been
directed or (b) mailed by certified or registered mail with postage prepaid, on the third (3rd) business day after the date
on which it is so mailed:

 

(i) If
to Indemnitee, at the address indicated on the signature page of this Agreement, or such other address as Indemnitee shall provide
in writing to the Company.

 

(ii) If
to the Company, to:

 

Tortoise Acquisition Corp. II

5100 W. 115th Place

Leawood, KS 66211

Attn: General Counsel

 

With a copy,
which shall not constitute notice, to:

 

Vinson & Elkins L.L.P.

1114 Avenue of the Americas, 32nd
Floor

New York, NY 10036

Attn: Brenda Lenahan

E. Ramey Layne

 

or to any other address as may have been
furnished to Indemnitee in writing by the Company.

 

    	 	12	 

     

    

 

22. APPLICABLE
LAW AND CONSENT TO JURISDICTION. This Agreement and the legal relations among the parties shall be governed by, and construed
and enforced in accordance with, the laws of the State of Delaware, without regard to its conflict of laws rules. Except with respect
to any arbitration commenced by Indemnitee pursuant to Section 14(a) of this Agreement, to the fullest extent permitted
by law, the Company and Indemnitee hereby irrevocably and unconditionally: (a) agree that any action or proceeding arising
out of or in connection with this Agreement shall be brought only in the Delaware Court and not in any other state or federal court
in the United States of America or any court in any other country; (b) consent to submit to the exclusive jurisdiction of
the Delaware Court for purposes of any action or proceeding arising out of or in connection with this Agreement; (c) waive
any objection to the laying of venue of any such action or proceeding in the Delaware Court; and (d) waive, and agree not
to plead or to make, any claim that any such action or proceeding brought in the Delaware Court has been brought in an improper
or inconvenient forum, or is subject (in whole or in part) to a jury trial. To the fullest extent permitted by law, the parties
hereby agree that the mailing of process and other papers in connection with any such action or proceeding in the manner provided
by Section 21 or in such other manner as may be permitted by law, shall be valid and sufficient service thereof.

 

23. IDENTICAL
COUNTERPARTS. This Agreement may be executed in one or more counterparts (including by electronic delivery of a counterpart
in pdf format), each of which shall for all purposes be deemed to be an original but all of which together shall constitute one
and the same Agreement. Only one such counterpart signed by the party against whom enforceability is sought needs to be produced
to evidence the existence of this Agreement.

 

24. MISCELLANEOUS.
Use of the masculine pronoun shall be deemed to include usage of the feminine pronoun where appropriate and vice versa. The headings
of the paragraphs of this Agreement are inserted for convenience only and shall not be deemed to constitute part of this Agreement
or to affect the construction thereof.

 

25. PERIOD
OF LIMITATIONS. No legal action shall be brought and no cause of action shall be asserted by or in the right of the Company
against Indemnitee, Indemnitee’s spouse, heirs, executors or personal or legal representatives after the expiration of two
(2) years from the date of accrual of such cause of action, and any claim or cause of action of the Company shall be extinguished
and deemed released unless asserted by the timely filing of a legal action within such two-year period; provided, however,
that if any shorter period of limitations is otherwise applicable to any such cause of action such shorter period shall govern.

 

26. ADDITIONAL
ACTS. If for the validation of any of the provisions in this Agreement any act, resolution, approval or other procedure
is required to the fullest extent permitted by law, the Company undertakes to cause such act, resolution, approval or other procedure
to be affected or adopted in a manner that will enable the Company to fulfill its obligations under this Agreement.

 

27. WAIVER
OF CLAIMS TO TRUST ACCOUNT. Notwithstanding anything contained herein to the contrary, Indemnitee hereby agrees that it
does not have any right, title, interest or claim of any kind (each, a “Claim”) in or to any monies in
the trust account established in connection with the Company’s initial public offering for the benefit of the Company and
holders of shares issued in such offering, and hereby waives any Claim it may have in the future as a result of, or arising out
of, any services provided to the Company and will not seek recourse against such trust account for any reason whatsoever. Accordingly,
Indemnitee acknowledges and agrees that any indemnification provided hereto will only be able to be satisfied by the Company if
(i) the Company has sufficient funds outside of the trust account to satisfy its obligations hereunder or (ii) the Company consummates
a Business Combination.

 

    	 	13	 

     

    

 

28. MAINTENANCE
OF INSURANCE. The Company shall use commercially reasonable efforts to obtain and maintain in effect during the entire
period for which the Company is obligated to indemnify the Indemnitee under this Agreement, one or more policies of insurance with
reputable insurance companies to provide the officers/directors of the Company with coverage for losses from wrongful acts and
omissions and to ensure the Company’s performance of its indemnification obligations under this Agreement. The Indemnitee
shall be covered by such policy or policies in accordance with its or their terms to the maximum extent of the coverage available
for any such director or officer under such policy or policies. In all such insurance policies, the Indemnitee shall be named as
an insured in such a manner as to provide the Indemnitee with the same rights and benefits as are accorded to the most favorably
insured of the Company’s directors and officers.

 

[Signature
Page Follows]

    	 	14	 

     

    

 

IN WITNESS WHEREOF,
the parties hereto have caused this Indemnification Agreement to be signed as of the day and year first above written.

 

	 	TORTOISE ACQUISITION CORP. II
	 	 	 
	 	By:	 
	 	Name:	 
	 	Title:	 
	 	 	 
	 	INDEMNITEE
	 	 	 
	 	By:	 
	 	Name:	 
	 	Address:Exhibit 10.9

Execution Version

 

FORWARD PURCHASE AGREEMENT

 

This Forward Purchase
Agreement (this “Agreement”) is entered into as of August 31, 2020, by and between Tortoise Acquisition Corp.
II, a Cayman Islands exempted company (the “Company”), and CIBC National Trust Company, a limited-purpose national
trust company, for and on behalf of one or more investment vehicles, separate accounts and other clients for which CIBC National
Trust Company or its affiliates serves as discretionary or non-discretionary investment manager (the “Purchaser”).

 

WHEREAS, the Company
was incorporated for the purpose of effecting a merger, amalgamation, share exchange, asset acquisition, share purchase, reorganization
or similar business combination with one or more businesses (the “Business Combination”);

 

WHEREAS, the Company
has confidentially submitted with the U.S. Securities and Exchange Commission (the “SEC”) a registration statement
on Form S-1 (the “Registration Statement”) for its initial public offering (“IPO”) of 25,000,000
units (or 28,750,000 units if the IPO over-allotment option is exercised in full) (the “Public Units”), at an
expected price of $10.00 per Public Unit (the “IPO Unit Price”), each Public Unit is currently comprised of
one Class A ordinary share, par value $0.0001 per share (the “Class A Shares,” and the Class A Shares included
in the Public Units, the “Public Shares”), and one-third of one redeemable warrant, where each whole redeemable
warrant is exercisable to purchase one Class A Share at an exercise price of $11.50 per share (the “Warrants,”
and the Warrants included in the Public Units, the “Public Warrants”);

 

WHEREAS, the Company
may amend the Registration Statement to increase the size of the IPO and make other changes to the terms of the IPO including with
respect to the portion of redeemable warrants to be included as part of the Public Units;

 

WHEREAS, following
the closing of the IPO (the “IPO Closing”), the Company will seek to identify and consummate the Business Combination;

 

WHEREAS, in connection
with the Business Combination, the Company may enter into agreements with investors pursuant to which such investors will purchase
Class A Shares in a private placement (the “PIPE”);

 

WHEREAS, the parties
hereto desire to enter into this Agreement, pursuant to which immediately prior to the closing of the Company’s initial Business
Combination (the “Business Combination Closing”) and in connection with the PIPE, the Company shall issue and
sell to the Purchaser, and the Purchaser shall subscribe for and purchase from the Company, as part of the aggregate proceeds to
be raised in the PIPE, the number of Forward Purchase Units (as defined below) determined pursuant the terms hereof, on the terms
and conditions set forth herein; and

 

WHEREAS, proceeds from
the IPO and from the sale in a private placement of certain Warrants to the Company’s sponsor will be deposited into a trust
account for the benefit of the holders of the Public Shares (the “Trust Account”), as described in the Registration
Statement.

 

NOW, THEREFORE, in
consideration of the premises, representations, warranties and the mutual covenants contained in this Agreement, and for other
good and valuable consideration, the receipt, sufficiency and adequacy of which are hereby acknowledged, the parties hereto agree
as follows:

 

1. Commitment.

 

(a) Subject
to the terms and conditions hereof and provided the Company elects, in its sole and absolute discretion, to offer the Purchaser
the opportunity to purchase the Forward Purchase Units (as defined herein) and the Purchaser accepts such offer, the Purchaser
hereby commits to purchase at least a minimum aggregate amount equal to either (i) 10% of the gross proceeds from the PIPE or (ii)
10% of the gross proceeds from the IPO, at the Purchaser’s sole discretion (the “Minimum Aggregate Amount”),
and up to a maximum aggregate amount of $100,000,000 (the “Maximum Aggregate Amount”) of forward purchase units
at a price per unit equal to the IPO Unit Price, each consisting of one Class A Share (the “Forward Purchase Shares”)
and one-fourth of one redeemable warrant, where each whole redeemable warrant is exercisable to purchase one Class A Share at an
exercise price of $11.50 per share (the “Forward Purchase Warrants”), each having the same terms as, respectively,
the Public Shares and the Public Warrants offered to the public in the IPO (such Forward Purchase Shares and Forward Purchase Warrants,
collectively, the “Forward Purchase Units”). With the consent of the Company and the Purchaser, the Purchaser
may constitute the only purchaser in the PIPE. For the avoidance of doubt, the Forward Purchase Units will have the same terms
as the Public Units offered to the public other than as described in Section 4 and Section 5 of this Agreement.

 

    

     

    

 

(b) If
the Company elects to offer the Purchaser the opportunity to purchase the Forward Purchase Units, the Purchaser shall specify the
maximum aggregate amount between the Minimum Aggregate Amount and the Maximum Aggregate Amount (the “Specified Amount”)
of Forward Purchase Units that the Purchaser is willing to subscribe for and purchase at the Closing (as defined below). Notwithstanding
the provisions of this Section 1, the Company shall have the right to specify, in its sole and absolute discretion and at
any time prior to or after the Purchaser shall have indicated its Specified Amount, an amount below the Specified Amount that the
Company is willing to offer, issue and sell to the Purchaser at the Closing. If the Purchaser, in its sole and absolute discretion,
accepts such offer, the Company shall issue and sell to the Purchaser the agreed upon amount of Forward Purchase Units at the Closing
as determined pursuant to this Section 1(b).

 

2. Representations,
Warranties and Agreements.

 

(a) Representations
and Warranties of the Purchaser. To induce the Company to issue the Forward Purchase Units to the Purchaser, the Purchaser
hereby represents and warrants to the Company and agrees with the Company as follows:

 

(i) Organization
and Authority. The Purchaser is duly organized, validly existing and in good standing under the laws of the jurisdiction of
its formation and has all requisite power and authority to carry on its business as presently conducted and as proposed to be conducted.
The Purchaser has full power and authority to enter into this Agreement. This Agreement, when executed and delivered by each of
the parties hereto, will constitute the valid and legally binding obligation of the Purchaser, enforceable against the Purchaser
in accordance with its terms, except (A) as limited by applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent
conveyance and any other laws of general application affecting enforcement of creditors’ rights generally, (B) as limited
by laws relating to the availability of specific performance, injunctive relief or other equitable remedies or (C) to the extent
the indemnification provisions contained in the Registration Rights (as defined below) may be limited by applicable federal or
state securities laws.

 

(ii) No
Conflicts. The execution, delivery and performance of this Agreement and the consummation by the Purchaser of the transactions
contemplated by this Agreement do not violate, conflict with or constitute a default under (A) the formation and governing documents
of the Purchaser, (B) any agreement, indenture or instrument to which the Purchaser is a party, (C) any law, statute, rule or regulation
to which the Purchaser is subject or (D) any agreement, order, judgment or decree to which the Purchaser is subject.

 

(iii) No
Governmental Consents. No governmental, administrative or other third party consents or approvals are required, necessary or
appropriate on the part of the Purchaser in connection with the transactions contemplated by this Agreement.

 

(iv) Adequacy
of Financing. At the time of the Closing, the Purchaser will have available to it sufficient funds to satisfy its obligations
under this Agreement.

 

(v) Experience,
Financial Capability and Suitability. The Purchaser is: (A) sophisticated in financial matters and is able to evaluate the
risks and benefits of the investment in the Forward Purchase Units and (B) able to bear the economic risk of its investment in
the Forward Purchase Units for an indefinite period of time because the Forward Purchase Units have not been registered under the
Securities Act of 1933, as amended (the “Securities Act”), and therefore cannot be sold unless subsequently
registered under the Securities Act or an exemption from such registration is available. The Purchaser is capable of evaluating
the merits and risks of its investment in the Company and has the capacity to protect its own interests. The Purchaser must bear
the economic risk of this investment until the Forward Purchase Units are sold pursuant to: (1) an effective registration statement
under the Securities Act or (2) an exemption from registration available with respect to such sale. The Purchaser is able to bear
the economic risks of an investment in the Forward Purchase Units and to afford a complete loss of the Purchaser’s investment
in the Forward Purchase Units.

 

    2

     

    

 

(vi) Access
to Information; Independent Investigation. Prior to the execution of this Agreement, the Purchaser has had the opportunity
to ask questions of and receive answers from representatives of the Company concerning an investment in the Company, as well as
the finances, operations, business and prospects of the Company, and the opportunity to obtain additional information to verify
the accuracy of all information so obtained. In determining whether to make this investment, the Purchaser has relied solely on
the Purchaser’s own knowledge and understanding of the Company and its business based upon the Purchaser’s own due
diligence investigation and the information furnished pursuant to this paragraph. The Purchaser understands that no person has
been authorized to give any information or to make any representations which were not furnished pursuant to this Section 2
and the Purchaser has not relied on any other representations or information in making its investment decision, whether written
or oral, relating to the Company, its operations or its prospects.

 

(vii) Investment
Purposes. The Purchaser is purchasing the Forward Purchase Units solely for investment purposes and not with a view towards
the further distribution or dissemination thereof. The Purchaser did not decide to enter into this Agreement as a result of any
general solicitation or general advertising within the meaning of Rule 502 under the Securities Act.

 

(viii) Accredited
Investor. The Purchaser is an accredited investor as defined in Rule 501(a) of Regulation D promulgated under the Securities
Act.

 

(ix) No
General Solicitation. Neither the Purchaser, nor any of its officers, directors, employees, agents, stockholders or partners
has either directly or indirectly, including, through a broker or finder (A) engaged in any general solicitation or (B) published
any advertisement in connection with the offer and sale of the Forward Purchase Units.

 

(x) No
Government Recommendation or Approval. The Purchaser understands that no federal or state agency has passed upon or made any
recommendation or endorsement of the offering of the Forward Purchase Units.

 

(xi) No
Public Market. The Purchaser understands that no public market now exists for the Forward Purchase Units, and that the Company
has made no assurances that a public market will ever exist for the Forward Purchase Units.

 

(xii) High
Degree of Risk. The Purchaser understands that its agreement to purchase the Forward Purchase Units involves a high degree
of risk which could cause the Purchaser to lose all or part of its investment.

 

(xiii) Restrictions
on Transfer; Shell Company. The Purchaser understands the Forward Purchase Units are being offered in a transaction not involving
a public offering within the meaning of the Securities Act. The Purchaser understands the Forward Purchase Units will be “restricted
securities” within the meaning of Rule 144(a)(3) under the Securities Act and the Purchaser understands that any certificates
representing the Forward Purchase Units will contain a legend in respect of such restrictions. If in the future the Purchaser decides
to offer, resell, pledge or otherwise transfer the Forward Purchase Units, such securities may be offered, resold, pledged or otherwise
transferred only pursuant to: (A) registration under the Securities Act or (B) an available exemption from registration. The Purchaser
agrees that if any transfer of its Forward Purchase Units or any interest therein is proposed to be made, as a condition precedent
to any such transfer, the Purchaser may be required to deliver to the Company an opinion of counsel satisfactory to the Company.
Absent registration or an exemption, the Purchaser agrees not to resell the Forward Purchase Units. The Purchaser further acknowledges
that because the Company is a shell company, Rule 144 may not be available to the Purchaser for the resale of the Forward Purchase
Units until one (1) year following the filing of a Form 8-K announcing the consummation of the Business Combination.

 

(xiv) Residence.
The Purchaser’s principal place of business is the office or offices located at the address of the Purchaser set forth on
the signature page hereof.

 

(xv) Affiliation
of Certain FINRA Members. The Purchaser is neither a person associated nor affiliated with Barclays Capital Inc. or Goldman
Sachs & Co. LLC. Upon request of the Company, the Purchaser shall confirm this representation with respect to any other member
of the Financial Industry Regulatory Authority (“FINRA”) that is participating in the IPO.

 

    3

     

    

 

(xvi) No
Other Representations and Warranties; Non-Reliance. Except for the specific representations and warranties contained in this
Section 2 and in any certificate or agreement delivered pursuant hereto, none of the Purchaser nor any person acting
on behalf of the Purchaser nor any of the Purchaser’s affiliates (the “Purchaser Parties”) has made, makes
or shall be deemed to make any other express or implied representation or warranty with respect to the Purchaser and the transactions
contemplated by this Agreement, and the Purchaser Parties disclaim any such representation or warranty. Except for the specific
representations and warranties expressly made by the Company in Section 2(b) and in any certificate or agreement delivered
pursuant hereto, the Purchaser Parties specifically disclaim that they are relying upon any other representations or warranties
that may have been made by the Company, any person on behalf of the Company or any of the Company’s other affiliates (collectively,
the “Company Parties”).

 

(b) Representations
and Warranties of the Company. To induce the Purchaser to purchase the Forward Purchase Units, the Company hereby represents
and warrants to the Purchaser and agrees with the Purchaser as follows:

 

(i) Incorporation
and Corporate Power. The Company is an exempted company duly incorporated and validly existing and in good standing under the
laws of the Cayman Islands and has all requisite corporate power and authority to carry on its business as presently conducted
and as proposed to be conducted. The Company has no subsidiaries.

 

(ii) No
Conflicts. The execution, delivery and performance of this Agreement and the consummation by the Company of the transactions
contemplated by this Agreement do not violate, conflict with or constitute a default under (A) the Company’s amended and
restated memorandum and articles of association, as they may be amended and/or restated from time to time (the “Memorandum
and Articles”), (B) any agreement, indenture or instrument to which the Company is a party, (C) any law, statute, rule
or regulation to which the Company is subject or (D) any agreement, order, judgment or decree to which the Company is subject.

 

(iii) Title
to Securities. Upon issuance in accordance with, and payment pursuant to, the terms hereof, the Forward Purchase Units and
the securities issuable upon exercise of the Forward Purchase Warrants (and in the case of the Forward Purchase Shares, the Memorandum
and Articles), when issued in accordance with the terms of the Forward Purchase Warrants and this Agreement and registered in the
register of members of the Company, will be duly and validly issued, fully paid and non-assessable, as applicable. Upon issuance
in accordance with, and payment pursuant to, the terms hereof, the Purchaser will have or receive good title to the Forward Purchase
Units, free and clear of all liens, claims and encumbrances of any kind, other than (A) transfer restrictions under federal and
state securities laws and (B) liens, claims or encumbrances imposed due to the actions of the Purchaser.

 

(iv) No
Adverse Actions. There are no actions, suits, investigations or proceedings pending, threatened against or affecting the Company
which (A) seek to restrain, enjoin, prevent the consummation of or otherwise affect the transactions contemplated by this Agreement
or (B) question the validity or legality of any transactions or seek to recover damages or to obtain other relief in connection
with any transactions.

 

(v) Authorization.
All corporate action on the part of the Company, its officers, directors and shareholders necessary for the authorization, execution
and delivery of this Agreement, the performance of all obligations of the Company required pursuant hereto and the authorization
and issuance (or reservation for issuance) of the Forward Purchase Units and the securities issuable upon exercise of the Forward
Purchase Warrants, has been taken or will be taken prior to the Closing. This Agreement, when executed and delivered by each of
the parties hereto, will constitute the valid and legally binding obligation of the Company, enforceable against the Company in
accordance with its terms, except (A) as limited by applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent conveyance
and any other laws of general application affecting enforcement of creditors’ rights generally, (B) as limited by laws relating
to the availability of specific performance, injunctive relief or other equitable remedies or (C) to the extent the indemnification
provisions contained in the Registration Rights may be limited by applicable federal or state securities laws.

 

    4

     

    

 

(vi) Capitalization.
The authorized share capital of the Company on the date hereof, consists of 200,000,000 Class A Shares, none of which are issued
and outstanding, 20,000,000 Class B ordinary shares, par value $0.0001, 7,187,500 of which are issued and outstanding as of the
date hereof (including up to 937,500 shares subject to forfeiture in the event that the underwriters’ over-allotment option
is not exercised in full) and 1,000,000 preference shares, none of which are issued and outstanding. There are no outstanding rights,
options, warrants, preemptive rights, rights of first refusal or similar rights for the purchase or acquisition from the Company
of any securities of the Company. All of the issued and outstanding Class B ordinary shares have been duly authorized and issued
in compliance with all applicable federal and state securities laws and the Memorandum and Articles.

 

(vii) No
Governmental Consents. Assuming the accuracy of the representations and warranties made by the Purchaser in this Agreement,
no governmental, administrative or other third party consents or approvals are required, necessary or appropriate on the part of
the Company in connection with the transactions contemplated by this Agreement, other than the filing of a Form D with the SEC
and such state Blue Sky, FINRA and New York Stock Exchange consents and approvals as may be required.

 

(viii) No
General Solicitation. No form of general solicitation or general advertising within the meaning of Regulation D of the Securities
Act (including, but not limited to, advertisements, articles, notices or other communications published in any newspaper, magazine
or similar medium or broadcast over television or radio, or any seminar or meeting whose attendees have been invited by any general
solicitation or general advertising) was used by the Company or any of its representatives in connection with the offer and sale
of the Forward Purchase Units.

 

(ix) No
Brokers. No broker, finder or similar intermediary has acted for or on behalf of the Company or any of its affiliates in connection
with this Agreement or the transactions contemplated by this Agreement and no broker, finder, agent or similar intermediary is
entitled to any broker’s, finder’s or similar fee or other commission in connection therewith.

 

(x) No
Other Representations and Warranties; Non-Reliance. Except for the specific representations and warranties contained in Section
2(b) and in any certificate or agreement delivered pursuant hereto, none of the Company Parties has made, makes or shall be
deemed to make any other express or implied representation or warranty with respect to the Company, the transactions contemplated
by this Agreement, the proposed IPO, the potential PIPE or a potential Business Combination, and the Company Parties disclaim any
such representation or warranty. Except for the specific representations and warranties expressly made by the Purchaser in Section
2(a) and in any certificate or agreement delivered pursuant hereto, the Company Parties specifically disclaim that they are
relying upon any other representations or warranties that may have been made by the Purchaser Parties.

 

3. Settlement
Date and Delivery.

 

(a) Closing
of Purchase of Securities. The consummation and settlement of the purchase and sale of the Forward Purchase Units hereunder
(the “Closing”) shall be held at the same date and immediately prior to the Business Combination Closing (the
date of the Closing being referred to as the “Closing Date”). At the Closing, if the Company elects to offer
the Purchaser the opportunity to purchase the Forward Purchase Units and the Purchaser accepts such offer, the Company will issue
to the Purchaser the Forward Purchase Units, each registered in the name of the Purchaser, against delivery of the purchase price
for the Forward Purchase Units in cash via wire transfer to an account specified in writing by the Company no later than five Business
Days prior to the Closing. For purposes of this Agreement, “Business Day” means any day, other than a Saturday
or a Sunday, that is neither a legal holiday nor a day on which banking institutions are generally authorized or required by law
or regulation to close in the City of New York, New York.

 

(b) Conditions
to Closing of the Company. The obligation of the Company to sell the Forward Purchase Units at the Closing under this Agreement
shall be subject to the fulfillment, at or prior to the Closing of each of the following conditions, any of which, to the extent
permitted by applicable laws, may be waived by the Company:

 

(i) Representations
and Warranties Correct. The representations and warranties made by the Purchaser in Section 2(a) hereof shall be true
and correct in all material respects when made and shall be true and correct in all material respects on and as of the Closing
Date and the IPO Closing, as the case may be, (unless they specifically speak as of another date in which case they shall be true
and correct in all material respects as of such date) with the same force and effect as if they had been made on and as of said
date.

 

    5

     

    

 

(ii) Covenants.
All covenants, agreements and conditions contained in this Agreement to be performed by the Purchaser on or prior to the Closing
Date shall have been performed or complied with in all material respects.

 

(iii) Business
Combination Closing. The Business Combination shall be consummated substantially concurrently with the purchase of the Forward
Purchase Units.

 

(iv) No
Injunction. No order, writ, judgment, injunction, decree, determination or award shall have been entered by or with any governmental,
regulatory or administrative authority or any court, tribunal or judicial or arbitral body, and no other legal restraint or prohibition
shall be in effect, preventing the purchase by the Purchaser of the Forward Purchase Units.

 

(v) Agreement
to Purchase. The Purchaser shall have accepted the Company’s offer to purchase an amount of Forward Purchase Units as
determined pursuant to Section 1(b).

 

(c) Conditions
to Closing of the Purchaser. The obligation of the Purchaser to purchase the Forward Purchase Units at the Closing under this
Agreement shall be subject to the fulfillment, at or prior to the Closing of each of the following conditions, any of which, to
the extent permitted by applicable laws, may be waived by the Purchaser:

 

(i) Representations
and Warranties Correct. The representations and warranties made by the Company in Section 2(b) hereof shall be
true and correct in all material respects when made and shall be true and correct in all material respects on and as of the Closing
Date and the IPO Closing, as the case may be (unless they specifically speak as of another date in which case they shall be true
and correct in all material respects as of such date), with the same force and effect as if they had been made on and as of said
date.

 

(ii) Covenants.
All covenants, agreements and conditions contained in this Agreement to be performed by the Company on or prior to the Closing
Date shall have been performed or complied with in all material respects.

 

(iii) Blue
Sky. The Company shall have obtained all necessary Blue Sky law permits and qualifications, or secured an exemption therefrom,
required by any state for the offer and sale of the Forward Purchase Units.

 

(iv) Business
Combination Closing. The Business Combination shall be consummated substantially concurrently with the purchase of the Forward
Purchase Units.

 

(v) No
Injunction. No order, writ, judgment, injunction, decree, determination or award shall have been entered by or with any governmental,
regulatory or administrative authority or any court, tribunal or judicial or arbitral body, and no other legal restraint or prohibition
shall be in effect, preventing the purchase by the Purchaser of the Forward Purchase Units.

 

(vi) Agreement
to Purchase. The Purchaser shall have accepted the Company’s offer to purchase an amount of Forward Purchase Units as
determined pursuant to Section 1(b).

 

4. Terms
of the Forward Purchase Units. The Forward Purchase Units will be substantially identical to the Public Units to be offered
in the IPO except that the Forward Purchase Units are being offered and sold pursuant to an exemption from the registration requirements
of the Securities Act and will be “restricted securities” within the meaning of Rule 144(a)(3) under the Securities
Act. If in the future the Purchaser decides to offer, resell, pledge or otherwise transfer the Forward Purchase Units, such securities
may be offered, resold, pledged or otherwise transferred only pursuant to: (a) registration under the Securities Act or (b) an
available exemption from registration under the Securities Act.

 

    6

     

    

 

5. Restrictions
on Transfer.

 

(a) Securities
Law Restrictions. The Purchaser hereby agrees not to sell, transfer, pledge, hypothecate or otherwise dispose of all or any
part of the Forward Purchase Units unless, prior thereto (i) a registration statement on the appropriate form under the Securities
Act and applicable state securities laws with respect to the Forward Purchase Units and the Class A Shares underlying the Forward
Purchase Warrants proposed to be transferred shall then be effective or (ii) the Company has received an opinion of counsel for
the Company that such registration is not required because such transaction is exempt from registration under the Securities Act
and the rules promulgated by the SEC thereunder and under all applicable state securities laws. All certificates representing the
Forward Purchase Units shall have endorsed thereon a legend substantially as follows:

 

“THE SECURITIES REPRESENTED
HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY STATE SECURITIES LAWS AND NEITHER THE SECURITIES
NOR ANY INTEREST THEREIN MAY BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE DISPOSED OF EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION
STATEMENT UNDER SUCH ACT OR SUCH LAWS OR AN EXEMPTION FROM REGISTRATION UNDER SUCH ACT AND SUCH LAWS WHICH, IN THE OPINION OF COUNSEL,
IS AVAILABLE.”

 

(b) Registration
Rights. The Purchaser will be entitled to the same registration rights (the “Registration Rights”) as the
purchasers in the PIPE and agrees to enter into a registration rights agreement containing customary terms for transactions of
the type contemplated by this Agreement, and in a form substantially similar to that entered into by the purchasers in the PIPE;
provided, however, that if the Purchaser is the only participant in the PIPE, the Purchaser will be entitled to registration rights
substantially consistent with the registration rights granted to investors by Tortoise Acquisition Corp. (“SPAC I”)
in connection with SPAC I’s initial business combination.

 

6. Board
Observer. Until such time as the Registration Statement shall be declared effective, the Company agrees to take such action
so as to ensure that as of the effective time of such Registration Statement and at all times thereafter until consummation of
the Business Combination the Purchaser shall have the right to designate an observer to the Company’s board of directors
(the “Board”); provided, however, that such observer shall not have the right to vote on any matter that shall
come before the Board or otherwise have any powers of a member of the Board.

 

7. Other
Agreements.

 

(a) Further
Assurances. Each of the Company and the Purchaser agrees to execute such further instruments and to take such further action
as may reasonably be necessary to carry out the intent of this Agreement.

 

(b) Notices.
All notices and other communications given or made pursuant to this Agreement shall be in writing and shall be deemed effectively
given upon the earlier of actual receipt, or (i) personal delivery to the party to be notified, (ii) when sent, if sent by electronic
mail or facsimile (if any) during normal business hours of the recipient, and if not sent during normal business hours, then on
the recipient’s next Business Day, (iii) five (5) Business Days after having been sent by registered or certified mail, return
receipt requested, postage prepaid or (iv) one (1) Business Day after deposit with a nationally recognized overnight courier, freight
prepaid, specifying next Business Day delivery, with written verification of receipt. All communications sent to the Company shall
be sent to: Tortoise Acquisition Corp. II, 5100 W. 115th Place, Leawood, KS 66211, Attention: Steven Schnitzer, with
a copy to the Company’s counsel at Vinson & Elkins L.L.P., 1114 Avenue of the Americas, 32nd Floor, New York, New York
10036, Attention: Brenda Lenahan. All communications sent to the Purchaser shall be sent to the address set forth on the signature
page hereto.

 

(c) No
Short Sales. The Purchaser hereby agrees that neither it, nor any person or entity acting on its behalf or pursuant to any
understanding with it, will engage in any Short Sales with respect to securities of the Company prior to the Business Combination
Closing. For purposes of this Section 7(c), “Short Sales” shall include, without limitation, all
“short sales” as defined in Rule 200 promulgated under Regulation SHO under the Securities Exchange Act of 1934, as
amended, and all types of direct and indirect share pledges (other than pledges in the ordinary course of business as part of prime
brokerage arrangements), forward sale contracts, options, puts, calls, swaps and similar arrangements (including on a total return
basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

 

    7

     

    

 

(d) Entire
Agreement. This Agreement, together with any documents, instruments and writing that are delivered pursuant hereto or referenced
herein, constitute the entire agreement and understanding of the parties hereto in respect of its subject matter and supersedes
all prior understandings, agreements or representations by or between the parties hereto, written or oral, to the extent they relate
in any way to the subject matter hereof or the transactions contemplated by this Agreement.

 

(e) Modifications
and Amendments. The terms and provisions of this Agreement may be modified or amended only by written agreement executed by
all parties hereto.

 

(f) Waivers
and Consents. The terms and provisions of this Agreement may be waived, or consent for the departure therefrom granted, only
by written document executed by the party entitled to the benefits of such terms or provisions. No such waiver or consent shall
be deemed to be or shall constitute a waiver or consent with respect to any other terms or provisions of this Agreement, whether
or not similar. Each such waiver or consent shall be effective only in the specific instance and for the purpose for which it was
given, and shall not constitute a continuing waiver or consent.

 

(g) Assignment.
The rights and obligations under this Agreement may not be assigned by any party hereto without the prior written consent of the
other party; provided that the Purchaser may assign its rights and obligations to an affiliate without the prior written consent
of the other party.

 

(h) Benefit.
All statements, representations, warranties, covenants and agreements in this Agreement shall be binding on the parties hereto
and shall inure to the benefit of the respective successors and permitted assigns of each party hereto. Nothing in this Agreement
shall be construed to create any rights or obligations except between the parties hereto, and no person or entity shall be regarded
as a third-party beneficiary of this Agreement.

 

(i) Governing
Law. This Agreement and the rights and obligations of the parties hereunder shall be construed in accordance with and governed
by the laws of New York applicable to contracts wholly performed within the borders of such state, without giving effect to the
conflict of law principles thereof.

 

(j) Jurisdiction.
The parties (i) hereby irrevocably and unconditionally submit to the jurisdiction of the state courts of New York for the purpose
of any suit, action or other proceeding arising out of or based upon this Agreement, (ii) agree not to commence any suit, action
or other proceeding arising out of or based upon this Agreement except in state courts of New York and (iii) hereby waive, and
agree not to assert, by way of motion, as a defense, or otherwise, in any such suit, action or proceeding, any claim that it is
not subject personally to the jurisdiction of the above-named courts, that its property is exempt or immune from attachment or
execution, that such suit, action or proceeding is brought in an inconvenient forum, that the venue of such suit, action or proceeding
is improper or that this Agreement or the subject matter hereof may not be enforced in or by such court.

 

(k) Severability.
In the event that any court of competent jurisdiction shall determine that any provision, or any portion thereof, contained in
this Agreement shall be unreasonable or unenforceable in any respect, then such provision shall be deemed limited to the extent
that such court deems it reasonable and enforceable, and as so limited shall remain in full force and effect. In the event that
such court shall deem any such provision, or portion thereof, wholly unenforceable, the remaining provisions of this Agreement
shall nevertheless remain in full force and effect.

 

(l) No
Waiver of Rights, Powers and Remedies. No failure or delay by a party hereto in exercising any right, power or remedy under
this Agreement, and no course of dealing between the parties hereto, shall operate as a waiver of any such right, power or remedy
of such party. No single or partial exercise of any right, power or remedy under this Agreement by a party hereto, nor any abandonment
or discontinuance of steps to enforce any such right, power or remedy, shall preclude such party from any other or further exercise
thereof or the exercise of any other right, power or remedy hereunder. The election of any remedy by a party hereto shall not constitute
a waiver of the right of such party to pursue other available remedies. No notice to or demand on a party not expressly required
under this Agreement shall entitle the party receiving such notice or demand to any other or further notice or demand in similar
or other circumstances or constitute a waiver of the rights of the party giving such notice or demand to any other or further action
in any circumstances without such notice or demand.

 

    8

     

    

 

(m) Survival
of Representations and Warranties. All representations and warranties made by the parties hereto in this Agreement or in any
other agreement, certificate or instrument provided for or contemplated by this Agreement, shall survive the execution and delivery
hereof and any investigations made by or on behalf of the parties.

 

(n) Headings
and Captions. The headings and captions of the various subdivisions of this Agreement are for convenience of reference only
and shall in no way modify or affect the meaning or construction of any of the terms or provisions hereof.

 

(o) Counterparts.
This Agreement may be executed in one or more counterparts, all of which when taken together shall be considered one and the same
agreement and shall become effective when counterparts have been signed by each party and delivered to the other party, it being
understood that both parties need not sign the same counterpart. In the event that any signature is delivered by facsimile transmission
or any other form of electronic delivery, such signature shall create a valid and binding obligation of the party executing (or
on whose behalf such signature is executed) with the same force and effect as if such signature page were an original thereof.

 

(p) Construction.
The words “include,” “includes” and “including” will be deemed to be followed by “without
limitation.” Pronouns in masculine, feminine and neuter genders will be construed to include any other gender, and words
in the singular form will be construed to include the plural and vice versa, unless the context otherwise requires. The words “this
Agreement,” “herein,” “hereof,” “hereby,” “hereunder” and words of similar
import refer to this Agreement as a whole and not to any particular subdivision unless expressly so limited. The parties hereto
intend that each representation, warranty and covenant contained herein will have independent significance. If any party hereto
has breached any representation, warranty or covenant contained herein in any respect, the fact that there exists another representation,
warranty or covenant relating to the same subject matter (regardless of the relative levels of specificity) which such party hereto
has not breached will not detract from or mitigate the fact that such party hereto is in breach of the first representation, warranty
or covenant.

 

(q) Mutual
Drafting. This Agreement is the joint product of the Purchaser and the Company and each provision hereof has been subject to
the mutual consultation, negotiation and agreement of such parties and shall not be construed for or against any party hereto.

 

8. Indemnification.
Each party shall indemnify the others against any loss, cost or damages (including reasonable attorney’s fees and expenses)
incurred as a result of such party’s breach of any representation, warranty, covenant or agreement in this Agreement.

 

9. Termination.
This Agreement may be terminated at any time prior to the Closing:

 

(a) by
mutual written consent of the Company and the Purchaser;

 

(b) automatically:

 

(i) if
the IPO is not consummated on or prior to March 31, 2021;

 

(ii) if
the Business Combination is not consummated within 24 months from the IPO Closing, or 27 months from the IPO Closing if the Company
has executed a letter of intent, agreement in principle or definitive agreement for a Business Combination within 24 months from
the IPO Closing but has not completed the Business Combination within such 24-month period, including any extensions beyond such
term effected pursuant to the terms of the Memorandum and Articles; or

 

    9

     

    

 

(iii) if
the Purchaser or the Company becomes subject to any voluntary or involuntary petition under the United States federal bankruptcy
laws or any state insolvency law, in each case which is not withdrawn within sixty (60) days after being filed, or a receiver,
fiscal agent or similar officer is appointed by a court for business or property of the Purchaser or the Company, in each case
which is not removed, withdrawn or terminated within sixty (60) days after such appointment.

 

In the event of any
termination of this Agreement pursuant to this Section 9, the purchase price for the Forward Purchase Units (and interest
thereon, if any), if previously paid, and all Purchaser’s funds paid in connection herewith shall be promptly returned to
the Purchaser, and thereafter this Agreement shall forthwith become null and void and have no effect, without any liability on
the part of the Purchaser or the Company and their respective directors, officers, employees, partners, managers, members, stockholders
or shareholders and all rights and obligations of each party shall cease; provided, however, that nothing contained in this Section 9
shall relieve either party from liabilities or damages arising out of any fraud or willful breach by such party of any of its representations,
warranties, covenants or agreements contained in this Agreement.

 

10. Disclosure.
The Purchaser hereby acknowledges that (a) the terms of this Agreement will be disclosed in the Registration Statement, (b) this
Agreement will be filed with the SEC as an exhibit to the Registration Statement and (c) the Company will disclose the terms of
this Agreement to potential IPO investors, potential Business Combination targets and potential PIPE investors.

 

11. Waiver
of Claims Against Trust. The Purchaser hereby acknowledges that it is aware that the Company will establish a Trust Account
for the benefit of its public shareholders upon the IPO Closing. The Purchaser, for itself and its affiliates, hereby agrees that
it has no right, title, interest or claim of any kind in or to any monies held in the Trust Account, or any other asset of the
Company as a result of any liquidation of the Company, except for redemption and liquidation rights, if any, the Purchaser may
have in respect of any Public Shares held by the Purchaser. The Purchaser hereby agrees that it shall have no right of set-off
or any right, title, interest or claim of any kind (“Claim”) to, or to any monies in, the Trust Account, and
hereby irrevocably waives any Claim to, or to any monies in, the Trust Account that it may have now or in the future, except for
redemption and liquidation rights, if any, the Purchaser may have in respect of any Public Shares held by the Purchaser. In the
event the Purchaser has any Claim against the Company under this Agreement, the Purchaser shall pursue such Claim solely against
the Company and its assets outside the Trust Account and not against the property or any monies in the Trust Account, except for
redemption and liquidation rights, if any, the Purchaser may have in respect of any Public Shares held by the Purchaser.

 

[Signature Page Follows]

 

    10

     

    

 

IN WITNESS WHEREOF,
the undersigned have executed this Agreement to be effective as of the date first set forth above.

 

	 	PURCHASER:
	 	 
	 	CIBC NATIONAL TRUST COMPANY

 

	 	By:	/s/ Adam Karpf
	 	 	Name: Adam Karpf
	 	 	Title: Managing Director and Portfolio Manager

 

	 	Address for Notices: 1177 Avenue of the Americas, 42nd Fl., New York, NY 10036
	 	 
	 	E-mail: Adam.Karpf@cibc.com

 

	 	COMPANY:
	 	 
	 	TORTOISE ACQUISITION CORP. II

 

	 	By:	/s/ Vincent T. Cubbage
	 	 	Name: Vincent T. Cubbage
	 	 	Title: President and Chief Executive Officer

 

 

Signature Page to Forward Purchase Agreement

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