Document:

<PAGE>
                                                                    Exhibit 4.34

                                                                   AMOUNT OF LLC

CERTIFICATE NUMBER 1                         PREFERRED SECURITIES:  $400,000,000

                        5.11% LLC PREFERRED SECURITIES
                 ($25.00 LIQUIDATION PREFERENCE PER SECURITY)
                                       OF
                          TECO FUNDING COMPANY II, LLC

      TECO FUNDING COMPANY II, LLC, a limited liability company formed under the
laws of the State of Delaware (the "LLC"), hereby certifies that TECO Capital
Trust II (the "SECURITYHOLDER") is the registered owner of LLC Preferred
Securities representing a corresponding amount of preferred limited liability
LLC interests in the LLC, which are designated the 5.11% LLC Preferred
Securities, liquidation preference $25.00 per security and aggregate liquidation
preference of $400,000,000 (the "LLC PREFERRED SECURITIES"). Subject to certain
obligations which may arise under the Delaware Limited Liability Company Act
(the "DELAWARE ACT"), no additional payments will be required pursuant to the
Delaware Act for the LLC Preferred Securities to represent preferred limited
liability LLC interests in the LLC, as to which the Securityholders of the LLC
who hold the LLC Preferred Securities (the "SECURITYHOLDERS"), in their
capacities as such, have no liability in excess of their obligations to make
payments provided for in the LLC Agreement (as defined below) and their share as
provided in the LLC Agreement of the LLC's assets and undistributed profits
(subject to their obligation to repay any funds wrongfully distributed to them),
and are transferable on the books and records of the LLC, in person or by a duly
authorized attorney, upon surrender of this certificate duly endorsed and in
proper form for transfer and otherwise in accordance with the provisions of the
LLC Agreement. The powers, preferences and special rights and limitations of the
LLC Preferred Securities are set forth in, and this certificate and the LLC
Preferred Securities represented hereby are issued and shall in all respects be
subject to the terms and provisions of, the Amended and Restated Limited
Liability LLC Agreement of the LLC, dated as of January 15 2002, as the same may
be amended from time to time in accordance with its terms (the "LLC AGREEMENT"),
authorizing the issuance of the LLC Preferred Securities and determining the
powers, preferences and other special rights and limitations, regarding
dividends, voting, return of capital and otherwise, and other matters relating
to the LLC Preferred Securities. Capitalized terms used herein but not defined
herein shall have the meaning given them in the LLC Agreement. The holders of
the LLC Preferred Securities are entitled to the benefits of the Guarantee
Agreement of TECO Energy, Inc., a Florida corporation, dated as of January 15,
2002 (the "GUARANTEE AGREEMENT") to the extent provided therein. Holders of LLC
Preferred Securities are Sixth party beneficiaries of the Guarantee Agreement
and may enforce such agreement as provided therein. The LLC will furnish a copy
of the LLC Agreement and the Guarantee Agreement to the Securityholder without
charge upon written request to the LLC at its principal place of business.

      The Securityholder, by accepting this certificate, is deemed to have
agreed to be bound by the provisions of the LLC Agreement. Upon receipt of this
certificate, the Securityholder is admitted to the LLC as an LLC Preferred
Securityholder, is bound by the LLC Agreement and is entitled to the benefits
thereunder.
<PAGE>
      IN WITNESS WHEREOF, this certificate has been executed on behalf of the
LLC by a duly authorized officer as of this 15 day of January, 2002.

                                    TECO FUNDING COMPANY II, LLC

                                     By:
                                         ------------------------------------
                                         Name:

                                         Title:<PAGE>
                                                                    Exhibit 4.35

                               GUARANTEE AGREEMENT

                                     between

                                TECO ENERGY, INC.

                                 (as Guarantor)

                                       and

                              THE BANK OF NEW YORK

                             (as Guarantee Trustee)

                                   dated as of

                                January 15, 2002

<PAGE>
                                TABLE OF CONTENTS

Article I      DEFINITIONS..................................................   1

      Section 1.1 Definitions...............................................   1

Article II     TRUST INDENTURE ACT..........................................   4

      Section 2.1 Trust Indenture Act; Application..........................   4

      Section 2.2 List of Holders...........................................   4

      Section 2.3 Reports by the Guarantee Trustee..........................   5

      Section 2.4 Periodic Reports to the Guarantee Trustee.................   5

      Section 2.5 Evidence of Compliance with Conditions Precedent..........   5

      Section 2.6 Events of Default; Waiver.................................   5

      Section 2.7 Event of Default; Notice..................................   6

      Section 2.8 Conflicting Interests.....................................   6

Article III    POWERS, DUTIES AND RIGHTS OF THE GUARANTEE TRUSTEE...........   6

      Section 3.1 Powers and Duties of the Guarantee Trustee................   6

      Section 3.2 Certain Rights of Guarantee Trustee.......................   8

      Section 3.3 Indemnity.................................................  10

Article IV     GUARANTEE TRUSTEE............................................  10

      Section 4.1 Guarantee Trustee: Eligibility............................  10

      Section 4.2 Appointment, Removal and Resignation of the Guarantee
                  Trustee...................................................  10

Article V      GUARANTEE....................................................  11

      Section 5.1 Guarantee.................................................  11

      Section 5.2 Waiver of Notice and Demand...............................  11

      Section 5.3 Obligations Not Affected..................................  11

      Section 5.4 Rights of Holders.........................................  12

      Section 5.5 Guarantee of Payment......................................  13

      Section 5.6 Subrogation...............................................  13

      Section 5.7 Independent Obligations...................................  13

Article VI     COVENANTS AND SUBORDINATION..................................  13

      Section 6.1 Subordination.............................................  13

      Section 6.2 Pari Passu Guarantees.....................................  13

                                      -i-
<PAGE>
                                TABLE OF CONTENTS
                                  (continued)

                                                                            Page

Article VII    TERMINATION..................................................  14

      Section 7.1 Termination...............................................  14

Article VIII   MISCELLANEOUS................................................  14

      Section 8.1 Successors and Assigns....................................  14

      Section 8.2 Amendments................................................  14

      Section 8.3 Notices...................................................  14

      Section 8.4 Benefit...................................................  15

      Section 8.5 Interpretation............................................  15

      Section 8.6 Governing Law.............................................  16

      Section 8.7 Counterparts..............................................  16

                                      -ii-
<PAGE>
                               GUARANTEE AGREEMENT

      This GUARANTEE AGREEMENT, dated as of January 15, 2002, is executed and
delivered by TECO ENERGY, INC. (the "Guarantor"), a Florida corporation having
its principal office at TECO Plaza, 702 North Franklin Street, Tampa, Florida,
33602, and THE BANK OF NEW YORK, a New York banking corporation, as trustee (the
"Guarantee Trustee"), for the benefit of the Holders (as defined herein) from
time to time of the Company Preferred Securities (as defined herein) of TECO
Funding Company II, LLC, a Delaware limited liability company (the "LLC").

      WHEREAS, pursuant to an Amended and Restated Trust Agreement (the "Trust
Agreement"), dated as of January 15, 2002 among the trustees named therein (the
"Trustees"), the LLC, as Depositor, and the Holders from time to time of
undivided beneficial ownership interests in the assets of TECO Capital Trust II
(the "Issuer"), a Delaware statutory business trust, the Issuer is issuing up to
$400,000,000 ($460,000,000 if the option granted to the underwriters is
exercised) aggregate liquidation preference of its 5.11% Trust Preferred
Securities (liquidation preference $25 per preferred security) (the "Trust
Preferred Securities") representing undivided beneficial ownership interests in
the assets of the Issuer and having the terms set forth in the Trust Agreement;

      WHEREAS, the Issuer will use the proceeds of the Trust Preferred
Securities to purchase the preferred securities of the LLC (the "Company
Preferred Securities"), and the proceeds of the Company Preferred Securities and
the common securities of the LLC will be used to purchase $412,400,000 (up to
$474,260,000 if the option granted to the underwriters is exercised) of the
5.11% Junior Subordinated Notes due 2007 (the "Notes") of the Guarantor which
will constitute the principal assets of the LLC; and

      WHEREAS, as incentive for the Issuer to purchase the Company Preferred
Securities, the Guarantor desires irrevocably and unconditionally to agree, to
the extent set forth herein, to pay to the Holders of the Company Preferred
Securities the Guarantee Payments (as defined herein) and to make certain other
payments on the terms and conditions set forth herein;

      NOW, THEREFORE, in consideration of the purchase by the Issuer and each
Holder of Company Preferred Securities, which purchase the Guarantor hereby
agrees shall benefit the Guarantor, the Guarantor executes and delivers this
Guarantee Agreement for the benefit of the Holders from time to time of the
Company Preferred Securities.

                                    ARTICLE I

                                   DEFINITIONS

      SECTION 1.1.DEFINITIONS.

      As used in this Guarantee Agreement, the terms set forth below shall,
unless the context otherwise requires, have the following meanings. Capitalized
or otherwise defined terms used but not otherwise defined herein shall have the
meanings assigned to such terms in the Trust Agreement as in effect on the date
hereof.
<PAGE>
      "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person; provided, however, that an Affiliate of the
Guarantor shall not be deemed to include the Issuer. For the purposes of this
definition, "control" when used with respect to any specified Person means the
power to direct the management and policies of such Person, directly or
indirectly, whether through the ownership of voting securities, by contract or
otherwise; and the terms "controlling" and "controlled" have meanings
correlative to the foregoing.

      "Event of Default" means a default by the Guarantor on any of its payment
or other obligations under this Guarantee Agreement; provided, however, that,
except with respect to a default in payment of any Guarantee Payments, the
Guarantor shall have received notice of default and shall not have cured such
default within 90 days after receipt of such notice.

      "Guarantee Payments" means the following payments or distributions,
without duplication, with respect to the Company Preferred Securities, to the
extent not paid or made by or on behalf of the LLC: (i) any accumulated and
unpaid Dividends (as defined in the LLC Agreement) required to be paid on such
Company Preferred Securities, (ii) the redemption price, including all
accumulated and unpaid Dividends to the date of redemption (the "Redemption
Price"), with respect to the Company Preferred Securities called for redemption
by the LLC, and (iii) upon a voluntary or involuntary termination, winding up or
liquidation of the LLC, unless Notes are distributed to the Holders, the greater
of (a) the aggregate of the liquidation preference of $25 per Company Preferred
Security plus accumulated and unpaid Dividends on the Company Preferred
Securities to the date of payment and (b) the amount of assets of the LLC
remaining available for distribution to Holders in liquidation of the LLC (in
either case, the "Liquidation Distribution"), provided, that, in no event shall
the payment of any amount under this Guarantee Agreement be reduced or avoided
by reason of any claim that the LLC does not have sufficient cash on hand or
funds legally available therefor.

      "Guarantee Trustee" means The Bank of New York, until a Successor
Guarantee Trustee has been appointed and has accepted such appointment pursuant
to the terms of this Guarantee Agreement and thereafter means each such
Successor Guarantee Trustee.

      "Holder" means any holder, as registered on the books and records of the
Issuer, of any Trust Preferred Securities or, as registered on the books of the
LLC, of any Company Preferred Securities, as the context may require; provided,
however, that in determining whether the holders of the requisite percentage of
Trust Preferred Securities or Company Preferred Securities have given any
request, notice, consent or waiver hereunder, "Holder" shall not include the
Guarantor, the Guarantee Trustee, or any Affiliate of the Guarantor or the
Guarantee Trustee.

      "Indebtedness" means, with respect to a Person, (i) the principal of and
premium, if any, and interest, if any, on, (A) indebtedness of such Person for
money borrowed and (B) indebtedness evidenced by securities, notes, debentures,
bonds or other similar instruments issued by such Person; (ii) all capital lease
obligations of such Person; (iii) all obligations of such Person issued or
assumed as the deferred purchase price of property, all conditional sale
obligations of such Person and all obligations of such Person under any
conditional sale or title retention agreement (but excluding trade accounts
payable and accrued liabilities in the ordinary course of business); (iv) all
obligations, contingent or otherwise, of such Person in respect of any

<PAGE>
letters of credit, banker's acceptance, security purchase facilities or similar
credit transactions; (v) all obligations in respect of interest rate swap, cap,
floor, collar or other agreements, interest rate future or option contracts,
currency swap agreements, currency future or option contracts and other similar
agreements; and (vi) all obligations of the type referred to in clauses (i)
through (v) of others for the payment of which such Person is responsible or
liable as obligor, guarantor or otherwise.

      "Indenture" means the Indenture, dated as of August 17, 1998, between the
Guarantor and The Bank of New York, as Trustee, together with the Sixth
Supplemental Indenture dated as of January 15, 2002 relating to the Notes, each
as amended or supplemented from time to time.

      "Junior Subordinated Indebtedness" means all Indebtedness of the Guarantor
subordinate and junior to Subordinated Indebtedness and Senior Indebtedness.

      "List of Holders" has the meaning specified in Section 2.2(a).

      "LLC Agreement" means the Amended and Restated Limited Liability Company
Agreement of the LLC dated as of January 15, 2002, as the same may be amended
from time to time.

      "Majority in liquidation preference of the Company Preferred Securities"
means, except as provided by the Trust Indenture Act, a vote by the Holder(s),
voting separately as a class, of more than 50% of the liquidation preference of
all then outstanding Company Preferred Securities issued by the LLC.

      "Officers' Certificate" means, with respect to any Person, a certificate
signed by the Chairman or a Vice Chairman of the Board, the President or a Vice
President, and by the Treasurer, an Assistant Treasurer, the Secretary or an
Assistant Secretary of such Person, and delivered to the Guarantee Trustee. Any
Officers' Certificate delivered with respect to compliance with a condition or
covenant provided for in this Guarantee Agreement shall include:

                  (a) a statement that each officer signing the Officers'
         Certificate has read the covenant or condition and the definitions
         relating thereto;

                  (b) a brief statement of the nature and scope of the
         examination or investigation undertaken by each officer in rendering
         the Officers' Certificate;

                  (c) a statement that each officer has made such examination or
         investigation as, in such officer's opinion, is necessary to enable
         such officer to express an informed opinion as to whether or not such
         covenant or condition has been complied with; and

                  (d) a statement as to whether, in the opinion of each officer,
         such condition or covenant has been complied with.

      "Person" means a legal person, including any individual, corporation,
estate, partnership, joint venture, association, joint stock company, limited
liability company, trust, unincorporated association, or government or any
agency or political subdivision thereof, or any other entity of whatever nature.
<PAGE>
      "Responsible Officer" means, with respect to the Guarantee Trustee, any
Senior Vice President, any Vice President, any Assistant Vice President, any
Assistant Secretary, any Assistant Treasurer, any trust officer or assistant
trust officer or any other officer or agent of the Corporate Trust Department of
the above designated officers and also means, with respect to a particular
corporate trust matter, any other officer to whom such matter is referred
because of that officer's knowledge of and familiarity with the particular
subject.

      "Senior Indebtedness" means all Indebtedness of the Guarantor, unless, in
the instrument creating or evidencing the same or pursuant to which the same is
outstanding, it is provided that such obligations are not superior in right of
payment to Subordinated Indebtedness or Junior Subordinated Indebtedness or to
other Indebtedness of the Guarantor which is pari passu with, or subordinated
to, Subordinated Indebtedness or Junior Subordinated Indebtedness.

      "Subordinated Indebtedness" means all Indebtedness of the Guarantor which
is subordinated and Junior in right of payment to Senior Indebtedness, but does
not include Junior Subordinated Indebtedness.

      "Successor Guarantee Trustee" means a successor Guarantee Trustee
possessing the qualifications to act as Guarantee Trustee under Section 4.1.
      "Trust Indenture Act" means the Trust Indenture Act of 1939, as amended.

                                   ARTICLE II

                               TRUST INDENTURE ACT

         SECTION 2.1.TRUST INDENTURE ACT; APPLICATION.

                  (a) This Guarantee Agreement is subject to the provisions of
         the Trust Indenture Act that are required to be part of this Guarantee
         Agreement and shall, to the extent applicable, be governed by such
         provisions.

                  (b) If and to the extent that any provision of this Guarantee
         Agreement limits, qualifies or conflicts with the duties imposed by
         Sections 310 to 317, inclusive, of the Trust Indenture Act, such
         imposed duties shall control.

         SECTION 2.2.LIST OF HOLDERS.

                  (a) The Guarantor shall furnish or cause to be furnished to
         the Guarantee Trustee (a) quarterly, on or before January 15, April 15,
         July 15 and October 15 of each year, a list, in such form as the
         Guarantee Trustee may reasonably require, of the names and addresses of
         the Holders of the Company Preferred Securities ("List of Holders") as
         of a date not more than 15 days prior to the delivery thereof, and (b)
         at such other times as the Guarantee Trustee may request in writing,
         within 30 days after the receipt by the Guarantor of any such request,
         a List of Holders as of a date not more than 15 days prior to the time
         such list is furnished, in each case to the extent such information is
         in the possession or control of the Guarantor and is not identical to a
         previously supplied list of Holders or has not otherwise been received
         by the Guarantee Trustee in its capacity as
<PAGE>
         such. The Guarantee Trustee may destroy any List of Holders previously
         given to it on receipt of a new List of Holders.

                  (b) The Guarantee Trustee shall comply with its obligations
         under Section 311(a), Section 311(b) and Section 312(b) of the Trust
         Indenture Act.

         SECTION 2.3.REPORTS BY THE GUARANTEE TRUSTEE.

         Not later than 60 days following May 15 of each year, commencing May
15, 2002 the Guarantee Trustee shall provide to the Holders of the Company
Preferred Securities such reports as are required by Section 313 of the Trust
Indenture Act, if any, in the form and in the manner provided by Section 313 of
the Trust Indenture Act. The Guarantee Trustee shall also comply with the
requirements of Section 313(d) of the Trust Indenture Act.

         A copy of each such report shall, at the time of such transmission to
Holders, be filed by the Guarantee Trustee with each national stock exchange,
the Nasdaq National Market or such other interdealer quotation system or
self-regulatory organization upon which the Company Preferred Securities are
listed or traded, with the Commission and with the Guarantor. The Guarantor will
promptly notify the Guarantee Trustee when any Company Preferred Securities are
listed on any stock exchange and of any delisting thereof.

         SECTION 2.4.PERIODIC REPORTS TO THE GUARANTEE TRUSTEE.

         The Guarantor shall provide to the Guarantee Trustee, the Securities
and Exchange Commission and the Holders such documents, reports and information,
if any, as required by Section 314 of the Trust Indenture Act and the compliance
certificate required by Section 314 of the Trust Indenture Act, in the form, in
the manner and at the times required by Section 314 of the Trust Indenture Act.

         SECTION 2.5.EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT.

         The Guarantor shall provide to the Guarantee Trustee such evidence of
compliance with such conditions precedent, if any, provided for in this
Guarantee Agreement that relate to any of the matters set forth in Section
314(c) of the Trust Indenture Act. Any certificate or opinion required to be
given by an officer pursuant to Section 314(c)(1) may be given in the form of an
Officers' Certificate.

         SECTION 2.6.EVENTS OF DEFAULT; WAIVER.

         The Holders of a Majority in liquidation preference of the Company
Preferred Securities may, by vote, on behalf of the Holders, waive any past
Event of Default and its consequences. Upon such waiver, any such Event of
Default shall cease to exist, and any Event of Default arising therefrom shall
be deemed to have been cured, for every purpose of this Guarantee Agreement, but
no such waiver shall extend to any subsequent or other default or Event of
Default or impair any right consequent therefrom.
<PAGE>
         SECTION 2.7.EVENT OF DEFAULT; NOTICE.

                  (a) The Guarantee Trustee shall, within 90 days after the
         occurrence of an Event of Default known to the Guarantee Trustee,
         transmit by mail, first class postage prepaid, to the Holders of the
         Company Preferred Securities, notices of all such Events of Default
         unless such defaults have been cured or waived before the giving of
         such notice; provided, that, except in the case of a default in the
         payment of a Guarantee Payment, the Guarantee Trustee shall be
         protected in withholding such notice if and so long as the Board of
         Directors, the executive committee or a trust committee of directors
         and/or Responsible Officers of the Guarantee Trustee in good faith
         determines that the withholding of such notice is in the interests of
         the Holders.

                  (b) The Guarantee Trustee shall not be deemed to have
         knowledge of any Event of Default unless the Guarantee Trustee shall
         have received written notice, or a Responsible Officer charged with the
         administration of the Trust Agreement shall have obtained written
         notice, of such Event of Default.

         SECTION 2.8.CONFLICTING INTERESTS.

                  (a) The Trust Agreement shall be deemed to be specifically
         described in this Guarantee Agreement for the purposes of clause (i) of
         the first proviso contained in Section 310(b) of the Trust Indenture
         Act.

                  (b) The Guarantee Trustee shall comply with its obligations
         under Sections 310(b) and 311 of the Trust Indenture Act.

                                  ARTICLE III

               POWERS, DUTIES AND RIGHTS OF THE GUARANTEE TRUSTEE

         SECTION 3.1 POWERS AND DUTIES OF THE GUARANTEE TRUSTEE.

                  (a) This Guarantee Agreement shall be held by the Guarantee
         Trustee for the benefit of the Holders of the Company Preferred
         Securities, and the Guarantee Trustee shall not transfer this Guarantee
         Agreement to any Person except a Holder exercising his or her rights
         pursuant to Section 5.4(iv) or to a Successor Guarantee Trustee on
         acceptance by such Successor Guarantee Trustee of its appointment to
         act as Successor Guarantee Trustee. The right, title and interest of
         the Guarantee Trustee shall automatically vest in any Successor
         Guarantee Trustee, upon acceptance by such Successor Guarantee Trustee
         of its appointment hereunder, and such vesting and cessation of title
         shall be effective whether or not conveyancing documents have been
         executed and delivered pursuant to the appointment of such Successor
         Guarantee Trustee.

                  (b) If an Event of Default has occurred and is continuing, the
         Guarantee Trustee shall enforce this Guarantee Agreement for the
         benefit of the Holders of the Company Preferred Securities.
<PAGE>
                  (c) This Guarantee Agreement and all moneys received by the
         Guarantee Trustee in respect of the Guarantee Payments will not be
         subject to any right, charge, security interest, lien or claim of any
         kind in favor of, or for the benefit of, the Guarantee Trustee or its
         agents or their creditors.

                  (d) The Guarantee Trustee, before the occurrence of any Event
         of Default and after the curing or waiver of all Events of Default that
         may have occurred, shall undertake to perform only such duties as are
         specifically set forth in this Guarantee Agreement, and no implied
         covenants shall be read into this Guarantee Agreement against the
         Guarantee Trustee. In case an Event of Default has occurred (that has
         not been cured or waived pursuant to Section 2.6), the Guarantee
         Trustee shall exercise such of the rights and powers vested in it by
         this Guarantee Agreement, and use the same degree of care and skill in
         its exercise thereof, as a prudent person would exercise or use under
         the circumstances in the conduct of his or her own affairs.

                  (e) No provision of this Guarantee Agreement shall be
         construed to relieve the Guarantee Trustee from liability for its own
         negligent action, its own negligent failure to act or its own willful
         misconduct, except that:

                           (i) prior to the occurrence of any Event of Default
                  and after the curing or waiving of all such Events of Default
                  that may have occurred:

                                    (A) the duties and obligations of the
                           Guarantee Trustee shall be determined solely by the
                           express provisions of this Guarantee Agreement, and
                           the Guarantee Trustee shall not be liable except for
                           the performance of such duties and obligations as are
                           specifically set forth in this Guarantee Agreement;
                           and

                                    (B) in the absence of bad faith on the part
                           of the Guarantee Trustee, the Guarantee Trustee may
                           conclusively rely, as to the truth of the statements
                           and the correctness of the opinions expressed
                           therein, upon any certificates or opinions furnished
                           to the Guarantee Trustee and conforming to the
                           requirements of this Guarantee Agreement; but in the
                           case of any such certificates or opinions that by any
                           provision hereof or of the Trust Indenture Act are
                           specifically required to be furnished to the
                           Guarantee Trustee, the Guarantee Trustee shall be
                           under a duty to examine the same to determine whether
                           or not they conform to the requirements of this
                           Guarantee Agreement;

                           (ii) the Guarantee Trustee shall not be liable for
                  any error of judgment made in good faith by a Responsible
                  Officer of the Guarantee Trustee, unless it shall be proved
                  that the Guarantee Trustee was negligent in ascertaining the
                  pertinent facts upon which such judgment was made;

                           (iii) the Guarantee Trustee shall not be liable with
                  respect to any action taken or omitted to be taken by it in
                  good faith in accordance with the direction of the Holders of
                  not less than a Majority in liquidation preference of the
                  Company
<PAGE>
                  Preferred Securities relating to the time, method and place of
                  conducting any proceeding for any remedy available to the
                  Guarantee Trustee, or exercising any trust or power conferred
                  upon the Guarantee Trustee under this Guarantee Agreement; and

                           (iv) no provision of this Guarantee Agreement shall
                  require the Guarantee Trustee to expend or risk its own funds
                  or otherwise incur personal financial liability in the
                  performance of any of its duties or in the exercise of any of
                  its rights or powers, if the Guarantee Trustee shall have
                  reasonable grounds for believing that the repayment of such
                  funds or liability is not reasonably assured to it under the
                  terms of this Guarantee Agreement or adequate indemnity
                  against such risk or liability is not reasonably assured to
                  it.

SECTION 3.2 CERTAIN RIGHTS OF GUARANTEE TRUSTEE.

         (a) Subject to the provisions of Section 3.1:

                  (i) The Guarantee Trustee may conclusively rely and shall be
         fully protected in acting or refraining from acting upon any
         resolution, certificate, statement, instrument, opinion, report,
         notice, request, direction, consent, order, bond, debenture, note,
         other evidence of indebtedness or other paper or document reasonably
         believed by it to be genuine and to have been signed, sent or presented
         by the proper party or parties.

                  (ii) Any direction or act of the Guarantor contemplated by
         this Guarantee Agreement shall be sufficiently evidenced by an
         Officer's Certificate unless otherwise prescribed herein.

                  (iii) Whenever, in the administration of this Guarantee
         Agreement, the Guarantee Trustee shall deem it desirable that a matter
         be proved or established before taking, suffering or omitting to take
         any action hereunder, the Guarantee Trustee (unless other evidence is
         herein specifically prescribed) may, in the absence of bad faith on its
         part, request and rely upon an Officers' Certificate which, upon
         receipt of such request from the Guarantee Trustee, shall be promptly
         delivered by the Guarantor.

                  (iv) The Guarantee Trustee may consult with legal counsel of
         its selection, and the written advice or opinion of such legal counsel
         with respect to legal matters shall be full and complete authorization
         and protection in respect of any action taken, suffered or omitted to
         be taken by it hereunder in good faith and in accordance with such
         advice or opinion. Such legal counsel may be legal counsel to the
         Guarantor or any of its Affiliates and may be one of its employees. The
         Guarantee Trustee shall have the right at any time to seek instructions
         concerning the administration of this Guarantee Agreement from any
         court of competent jurisdiction.

                  (v) The Guarantee Trustee shall be under no obligation to
         exercise any of the rights or powers vested in it by this Guarantee
         Agreement at the request or
<PAGE>
         direction of any Holder, unless such Holder shall have provided to the
         Guarantee Trustee such adequate security and indemnity as would satisfy
         a reasonable person in the position of the Guarantee Trustee, against
         the costs, expenses (including attorneys' fees and expenses) and
         liabilities that might be incurred by it in complying with such request
         or direction, including such reasonable advances as may be requested by
         the Guarantee Trustee; provided that, nothing contained in this Section
         3.2(a)(v) shall be taken to relieve the Guarantee Trustee, upon the
         occurrence of an Event of Default, of its obligation to exercise the
         rights and powers vested in it by this Guarantee Agreement.

                  (vi) The Guarantee Trustee shall not be bound to make any
         investigation into the facts or matters stated in any resolution,
         certificate, statement, instrument, opinion, report, notice, request,
         direction, consent, order, bond, debenture, note, other evidence of
         indebtedness or other paper or document, but the Guarantee Trustee, in
         its discretion, may make such further inquiry or investigation into
         such facts or matters as it may see fit, and if the Guarantee Trustee
         shall determine to make such further inquiry or investigation, it shall
         be entitled to examine the books, records and premises of the
         Guarantor, personally or by agent or attorney.

                  (vii) The Guarantee Trustee may execute any of the trusts or
         powers hereunder or perform any duties hereunder either directly or by
         or through its agents or attorneys, and the Guarantee Trustee shall not
         be responsible for any misconduct or negligence on the part of any such
         agent or attorney appointed with due care by it hereunder.

                  (viii) Any action taken by the Guarantee Trustee or its agents
         hereunder shall bind the Holders, and the signature of the Guarantee
         Trustee or its agents alone shall be sufficient and effective to
         perform such action. No third party shall be required to inquire as to
         the authority of the Guarantee Trustee to so act or as to its
         compliance with any of the terms and provisions of this Guarantee
         Agreement, both of which shall be conclusively evidenced by the
         Guarantee's or its agent's taking such action.

                  (ix) Whenever in the administration of this Guarantee
         Agreement the Guarantee Trustee shall deem it desirable to receive
         instructions with respect to enforcing any remedy or right or taking
         any other action hereunder, the Guarantee Trustee (A) may request
         instructions from the Holders of a Majority in Liquidation Amount of
         the Company Preferred Securities, (B) may refrain from enforcing such
         remedy or right or taking such other action until such instructions are
         received, and (C) shall be protected in acting in accordance with such
         instructions.

         (b) No provision of this Guarantee Agreement shall be deemed to impose
any duty or obligation on the Guarantee Trustee to perform any act or acts or
exercise any right, power, duty or obligation conferred or imposed on it in any
jurisdiction in which it shall be illegal, or in which the Guarantee Trustee
shall be unqualified or incompetent in
<PAGE>
         accordance with applicable law, to perform any such act or acts or to
         exercise any such right, power, duty or obligation. No permissive power
         or authority available to the Guarantee Trustee shall be construed to
         be a duty to act in accordance with such power and authority.

         SECTION 3.3 INDEMNITY.

         The Guarantor agrees to indemnify the Guarantee Trustee for, and to
hold it harmless against, any loss, liability or expense incurred without
negligence or bad faith on the part of the Guarantee Trustee, arising out of or
in connection with the acceptance or administration of this Guarantee Agreement,
including the costs and expenses of defending itself against any claim or
liability in connection with the exercise or performance of any of its powers or
duties hereunder. The Guarantee Trustee will not claim or exact any lien or
charge on any Guarantee Payments as a result of any amount due to it under this
Guarantee Agreement.

                                   ARTICLE IV

                                GUARANTEE TRUSTEE

         SECTION 4.1 GUARANTEE TRUSTEE: ELIGIBILITY.

         (a) There shall at all times be a Guarantee Trustee which shall:

                           (i) not be an Affiliate of the Guarantor; and

                           (ii) be a Person that is eligible pursuant to the
                  Trust Indenture Act to act as such and has a combined capital
                  and surplus of at least $50,000,000, and shall be a
                  corporation meeting the requirements of Section 310(c) of the
                  Trust Indenture Act. If such corporation publishes reports of
                  condition at least annually, pursuant to law or to the
                  requirements of the supervising or examining authority, then,
                  for the purposes of this Section and to the extent permitted
                  by the Trust Indenture Act, the combined capital and surplus
                  of such corporation shall be deemed to be its combined capital
                  and surplus as set forth in its most recent report of
                  condition so published.

                  (b) If at any time the Guarantee Trustee shall cease to be
         eligible to so act under Section 4.1(a), the Guarantee Trustee shall
         immediately resign in the manner and with the effect set out in Section
         4.2(c).

                  (c) If the Guarantee Trustee has or shall acquire any
         "conflicting interest" within the meaning of Section 310(b) of the
         Trust Indenture Act, the Guarantee Trustee and Guarantor shall in all
         respects comply with the provisions of Section 310(b) of the Trust
         Indenture Act.

         SECTION 4.2 APPOINTMENT, REMOVAL AND RESIGNATION OF THE GUARANTEE
         TRUSTEE.

                  (a) Subject to Section 4.2(b), the Guarantee Trustee may be
         appointed or removed without cause at any time by the Guarantor.
<PAGE>
                  (b) The Guarantee Trustee shall not be removed until a
         Successor Guarantee Trustee has been appointed and has accepted such
         appointment by written instrument executed by such Successor Guarantee
         Trustee and delivered to the Guarantor.

                  (c) The Guarantee Trustee appointed hereunder shall hold
         office until a Successor Guarantee Trustee shall have been appointed or
         until its removal or resignation. The Guarantee Trustee may resign from
         office (without need for prior or subsequent accounting) by an
         instrument in writing executed by the Guarantee Trustee and delivered
         to the Guarantor, which resignation shall not take effect until a
         Successor Guarantee Trustee has been appointed and has accepted such
         appointment by instrument in writing executed by such Successor
         Guarantee Trustee and delivered to the Guarantor and the resigning
         Guarantee Trustee.

                  (d) If no Successor Guarantee Trustee shall have been
         appointed and accepted appointment as provided in this Section 4.2
         within 60 days after delivery to the Guarantor of an instrument of
         resignation, the resigning Guarantee Trustee may petition, at the
         expense of the Guarantor, any court of competent jurisdiction for
         appointment of a Successor Guarantee Trustee. Such court may thereupon,
         after prescribing such notice, if any, as it may deem proper, appoint a
         Successor Guarantee Trustee.

                                   ARTICLE V

                                    GUARANTEE

         SECTION 5.1 GUARANTEE.

         The Guarantor irrevocably and unconditionally agrees to pay in full to
the Holders of the Company Preferred Securities the Guarantee Payments (without
duplication of amounts theretofore paid by or on behalf of the LLC), as and when
due, regardless of any defense, right of setoff or counterclaim which the LLC
may have or assert, including any claim that the LLC does not have sufficient
cash on hand or funds legally available to make such payments. The Guarantor's
obligation to make a Guarantee Payment may be satisfied by direct payment of the
required amounts by the Guarantor to the Holders of the Company Preferred
Securities or by causing the LLC to pay such amounts to the Holders.

         SECTION 5.2 WAIVER OF NOTICE AND DEMAND.

         The Guarantor hereby waives notice of acceptance of the Guarantee
Agreement and of any liability to which it applies or may apply, presentment,
demand for payment, any right to require a proceeding first against the
Guarantee Trustee, LLC or any other Person before proceeding against the
Guarantor, protest, notice of nonpayment, notice of dishonor, notice of
redemption and all other notices and demands.

         SECTION 5.3 OBLIGATIONS NOT AFFECTED.

         The obligations, covenants, agreements and duties of the Guarantor
under this Guarantee Agreement shall in no way be affected or impaired by reason
of the happening from time to time of any of the following:
<PAGE>
                  (a) the release or waiver, by operation of law or otherwise,
         of the performance or observance by the LLC of any express or implied
         agreement, covenant, term or condition relating to the Company
         Preferred Securities to be performed or observed by the LLC;

                  (b) the extension of time for the payment by the LLC of all or
         any portion of the Dividends (other than an extension of time for
         payment of Dividends that results from the extension of any interest
         payment period on the Notes as so provided in the Indenture),
         Redemption Price, Liquidation Distribution or any other sums payable
         under the terms of the Company Preferred Securities or the extension of
         time for the performance of any other obligation under, arising out of,
         or in connection with, the Company Preferred Securities;

                  (c) any failure, omission, delay or lack of diligence on the
         part of the Holders to enforce, assert or exercise any right,
         privilege, power or remedy conferred on the Holders pursuant to the
         terms of the Company Preferred Securities, or any action on the part of
         the LLC granting indulgence or extension of any kind;

                  (d) the voluntary or involuntary liquidation, dissolution,
         sale of any collateral, receivership, insolvency, bankruptcy,
         assignment for the benefit of creditors, reorganization, arrangement,
         composition or readjustment of debt of, or other similar proceedings
         affecting, the LLC or any of the assets of the LLC;

                  (e) any invalidity of, or defect or deficiency in, the Company
         Preferred Securities;

                  (f) the settlement or compromise of any obligation guaranteed
         hereby or hereby incurred; or

                  (g) any other circumstance whatsoever that might otherwise
         constitute a legal or equitable discharge or defense of a guarantor, it
         being the intent of this Section 5.3 that the obligations of the
         Guarantor hereunder shall be absolute and unconditional under any and
         all circumstances.

      There shall be no obligation of the Holders to give notice to, or obtain
the consent of, the Guarantor with respect to the happening of any of the
foregoing.

         SECTION 5.4 RIGHTS OF HOLDERS.

         The Guarantor expressly acknowledges that: (i) this Guarantee Agreement
will be deposited with the Guarantee Trustee to be held for the benefit of the
Holders of the Company Preferred Securities; (ii) the Guarantee Trustee has the
right to enforce this Guarantee Agreement on behalf of the Holders of the
Company Preferred Securities; (iii) the Holders of a Majority in liquidation
preference of the Company Preferred Securities have the right to direct the
time, method and place of conducting any proceeding for any remedy available to
the Guarantee Trustee in respect of this Guarantee Agreement or exercising any
trust or power conferred upon the Guarantee Trustee under this Guarantee
Agreement; and (iv) to the fullest extent permitted by law, without the need for
any other action of any person, including the Guarantee Trustee or
<PAGE>
any other Holder of Trust Preferred Securities or Company Preferred Securities,
each Holder of Trust Preferred Securities or Company Preferred Securities will
be entitled to enforce the rights of the Holders of the Company Preferred
Securities under this Guarantee Agreement. The Guarantor waives, any right or
remedy to require that any action on this Guarantee Agreement be brought first
against the LLC or any other Person or entity before proceeding directly against
the Guarantor.

         SECTION 5.5 GUARANTEE OF PAYMENT.

         This Guarantee Agreement creates a guarantee of payment and not of
collection. This Guarantee Agreement will not be discharged except by payment of
the Guarantee Payments in full (without duplication of amounts theretofore paid
by the LLC) or upon distribution of the Notes to Holders as provided in the LLC
Agreement and the Trust Agreement.

         SECTION 5.6 SUBROGATION.

         The Guarantor shall be subrogated to all (if any) rights of the Holders
against the LLC in respect of any amounts paid to the Holders by the Guarantor
under this Guarantee Agreement and shall have the right to waive payment by the
LLC pursuant to Section 5.1; provided, however, that the Guarantor shall not
(except to the extent required by mandatory provisions of law) be entitled to
enforce or exercise any rights which it may acquire by way of subrogation or any
indemnity, reimbursement or other agreement, in all cases as a result of payment
under this Guarantee Agreement, if at the time of any such payment, any amounts
are due and unpaid under this Guarantee Agreement. If any amount shall be paid
to the Guarantor in violation of the preceding sentence, the Guarantor agrees to
hold such amount in trust for the Holders of the Company Preferred Securities
and to pay over such amount to the Holders.

         SECTION 5.7 INDEPENDENT OBLIGATIONS.

         The Guarantor acknowledges that its obligations hereunder are
independent of the obligations of the LLC with respect to the Company Preferred
Securities and that the Guarantor shall be liable as principal and as debtor
hereunder to make Guarantee Payments pursuant to the terms of this Guarantee
Agreement notwithstanding the occurrence of any event referred to in subsections
(a) through (g), inclusive, of Section 5.3 hereof.

                                   ARTICLE VI

                           COVENANTS AND SUBORDINATION

         SECTION 6.1 SUBORDINATION.

         This Guarantee Agreement will constitute an unsecured obligation of the
Guarantor and will rank subordinate and junior in right of payment to all Senior
Indebtedness and Subordinated Indebtedness of the Guarantor.
<PAGE>
         SECTION 6.2 PARI PASSU GUARANTEES

         This Guarantee Agreement shall rank pari passu with any similar
Guarantee Agreements issued by the Guarantor on behalf of the Holders of Company
Preferred Securities issued by the LLC.

                                  ARTICLE VII

                                   TERMINATION

         SECTION 7.1 TERMINATION.

         This Guarantee Agreement shall terminate and be of no further force and
effect upon (i) full payment of the Redemption Price of all Company Preferred
Securities, (ii) the distribution of Notes to the Holders in exchange for all of
the Company Preferred Securities or (iii) full payment of the amounts payable in
accordance with the Trust Agreement upon liquidation of the LLC, provided,
however, that the provisions of Section 3.3 hereof shall survive the termination
of this Guarantee Agreement. Notwithstanding the foregoing, this Guarantee
Agreement will continue to be effective or will be reinstated, as the case may
be, if at any time any Holder must restore payment of any sums paid with respect
to Company Preferred Securities or this Guarantee Agreement.

                                  ARTICLE VIII

                                  MISCELLANEOUS

         SECTION 8.1 SUCCESSORS AND ASSIGNS.

         All guarantees and agreements contained in this Guarantee Agreement
shall bind the successors, assigns, receivers, trustees and representatives of
the Guarantor and shall inure to the benefit of the Holders of the Company
Preferred Securities then outstanding. Except in connection with a
consolidation, merger or sale involving the Guarantor that is permitted under
Article Eight of the Indenture and pursuant to which the assignee agrees in
writing to perform the Guarantor's obligations hereunder, the Guarantor shall
not assign its obligations hereunder. If the LLC is liquidated and the Notes are
distributed to the Property Trustee (as defined in the Trust Agreement) to be
held as Trust Property (as defined in the Trust Agreement), then the Guarantor's
obligations under this Guarantee Agreement with respect to the Company Preferred
Securities shall be deemed to be obligations with respect to the Trust Preferred
Securities, and obligations of the Trust rather than the LLC.

         SECTION 8.2 AMENDMENTS.

         Except with respect to any changes which do not adversely affect the
rights of the Holders of the Company Preferred Securities in any material
respect (in which case no consent of the Holders will be required), this
Guarantee Agreement may be amended only with the prior approval of the Holders
of not less than a Majority in liquidation preference of all the outstanding
Company Preferred Securities. The provisions of Article VIII of the LLC
Agreement concerning meetings of the Holders shall apply to the giving of such
approval.
<PAGE>
         SECTION 8.3 NOTICES.

         Any notice, request or other communication required or permitted to be
given hereunder shall be in writing, duly signed by the party giving such
notice, and delivered, telecopied or mailed by first class mail as follows:

                  (a) if given to the Guarantee Trustee, at the Guarantee
         Trustee's mailing address set forth below (or such other address as the
         Guarantee Trustee may give notice of to the Guarantor and the Holders):

            The Bank of New York
            101 Barclay Street
            21st Floor West
            New York, New York 10286
            Attention:  Corporate Trust Administration

                  (b) if given to the Guarantor, to the address set forth below
         or such other address, facsimile number or to the attention of such
         other Person as the Guarantor may give notice to the Holders of the
         Company Preferred Securities:

            TECO Energy, Inc.
            TECO Plaza
            702 North Franklin Street
            Tampa, Florida 33602
            Attention:  Secretary

                  (c) if given to any Holder, at the address set forth on the
         books and records of the LLC.

         All notices hereunder shall be deemed to have been given when received
in person, telecopied with receipt confirmed, or mailed by first class mail,
postage prepaid, except that if a notice or other document is refused delivery
or cannot be delivered because of a changed address of which no notice was
given, such notice or other document shall be deemed to have been delivered on
the date of such refusal or inability to deliver.

         SECTION 8.4 BENEFIT.

         This Guarantee Agreement is for the benefit of the Holders of the
Company Preferred Securities and is not separately transferable from the Company
Preferred Securities. In addition, this Guarantee Agreement is for the benefit
of the Holders of the Trust Preferred Securities and is not separately
transferable from the Trust Preferred Securities.

         SECTION 8.5 INTERPRETATION.

         In this Guarantee Agreement, unless the context otherwise requires:

                  (a) capitalized terms used in this Guarantee Agreement but not
         defined in the preamble hereto have the respective meanings assigned to
         them in Section 1.1;
<PAGE>
                  (b) a term defined anywhere in this Guarantee Agreement has
         the same meaning throughout;

                  (c) all references to "the Guarantee Agreement" or "this
         Guarantee Agreement" are to this Guarantee Agreement as modified,
         supplemented or amended from time to time;

                  (d) all references in this Guarantee Agreement to Articles and
         Sections are to Articles and Sections of this Guarantee Agreement
         unless otherwise specified;

                  (e) a term defined in the Trust Indenture Act has the same
         meaning when used in this Guarantee Agreement unless otherwise defined
         in this Guarantee Agreement or unless the context otherwise requires;

                  (f) a reference to the singular includes the plural and vice
         versa; and

                  (g) the masculine, feminine or neuter genders used herein
         shall include the masculine, feminine and neuter genders.

         SECTION 8.6 GOVERNING LAW.

         This Guarantee Agreement shall be governed by and construed and
interpreted in accordance with the laws of the State of New York without regard
to the conflict of law principles thereof.

         SECTION 8.7 COUNTERPARTS.

         This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.
<PAGE>
      THIS GUARANTEE AGREEMENT is executed as of the date first above written.

                                    TECO ENERGY, INC.

                                    By:  /s/ Sandra W. Callahan
                                         -------------------------------------
                                         Name:  Sandra W. Callahan
                                         Title: Vice President - Treasurer

                                    THE BANK OF NEW YORK
                                    as Guarantee Trustee

                                    By:  /s/ Mary LaGumina
                                         ---------------------------------------
                                         Name:  Mary LaGumina
                                         Title: Vice President

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