Exhibit 10(l)

SECOND AMENDMENT TO EFH SECOND SUPPLEMENTAL RETIREMENT PLAN

Pursuant to the authority of the Board of Directors of Energy Future Holdings
Corp., and the provisions of Section 5.1 thereof, the EFH Second Supplemental
Retirement Plan (“Plan”), as amended and restated as of October 10, 2007, is
hereby amended in the following respects only, effective as of January 1, 2010.

 

  (1) Section 2.9 of the Plan is hereby amended in its entirety to read as
follows:

“2.9 “Participant” shall mean each person who is entitled to receive a benefit
on or after January 1, 1983, under the Retirement Plan and whose Retirement
Benefit is less than his Adjusted Retirement Benefit, but excluding any
Participant who is eligible to receive benefits under (1) the Retirement Income
Restoration Plan of ENSERCH Corporation and Participating Subsidiary Companies
or (2) the Oncor Supplemental Retirement Plan, to the extent of any benefit
attributable to service with Oncor Electric Delivery Company LLC.”

 

  (2) Section 2.10 of the Plan is hereby amended in its entirety to read as
follows:

“2.10 “Participating Employer” shall mean the Company or any Affiliated Entity
which has been approved for participation in, and which has adopted, the Plan.
“Participating Employers” shall be used to refer to such entities jointly or
severally. Effective as of January 1, 2010, Oncor Electric Delivery Company LLC
shall no longer be a Participating Employer in this Plan.”

 

  (3) Section 2.19 of the Plan is hereby amended by adding the following
sentences to the end of existing Section 2.19:

“Notwithstanding the foregoing, the Supplemental Retirement Benefit shall not
include any amount attributable to service with Oncor Electric Delivery Company
LLC, as determined by the actuary, which benefit shall be provided under the
Oncor Supplemental Retirement Plan. In no event shall a Participant’s total
Benefit under this Plan and the Oncor Supplemental Retirement Plan exceed the
Benefit such Participant would be entitled to receive under this Plan, if such
Participant’s service with Oncor Electric Delivery Company LLC were taken into
account under this Plan.”

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IN WITNESS WHEREOF, and as conclusive evidence of the adoption of the foregoing
instrument Amendment to the EFH Second Supplemental Retirement Plan, the Board
of Directors of Energy Future Holdings Corp. has caused these presents to be
duly executed in the name and on the behalf of Energy Future Holdings Corp., by
an authorized officer thereof, thereunto duly authorized this 9th day of April,
2010.

 

ENERGY FUTURE HOLDINGS CORP.

/s/    PAUL KEGLEVIC

Paul Keglevic, Executive Vice President & Chief Financial Officer REVIEWED &
APPROVED

 

Richard Landy, Executive Vice President, Human Resources

 

Russell Graves, Director, Total Rewards