Exhibit 10.27

Execution Copy

DESIGNATED ACCOUNT REPRESENTATIVE AGREEMENT  Relating to the NOx Allowance Program

This DESIGNATED ACCOUNT REPRESENTATIVE AGREEMENT ("Agreement") is entered into as of December 7, 2001, by and between EME HOMER CITY GENERATION L.P., a
Pennsylvania limited partnership ("EMEHC"), and Homer City OL1 LLC, a Delaware limited liability company, Homer City OL2 LLC, a Delaware limited liability company, Homer City OL3 LLC, a Delaware
limited liability company, Homer City OL4 LLC, a Delaware limited liability company, Homer City OL5 LLC, a Delaware limited liability company, Homer City OL6 LLC, a Delaware limited liability company,
Homer City OL7 LLC, a Delaware limited liability company, and Homer City OL8 LLC, a Delaware limited liability company (together, the "Owner Lessors").

WITNESSETH

WHEREAS, as a result of EMEHC's sale of eight undivided interests in Homer City Electric Generating Station located near Indiana, Pennsylvania (the "Homer City
Station") to the Owner Lessors, Owner Lessors are the owners of eight undivided interests (totaling a 100% interest) in the Homer City Station (the "Undivided Interests").11

WHEREAS,
pursuant to eight facility leases between the Owner Lessors and EMEHC, dated as of the date hereof (the "Facility Leases"), EMEHC has leased back the Undivided Interests from
the Owner Lessors.

WHEREAS,
Boiler Nos. 1, 2 and 3 at the Homer City Station are NOx affected sources that are subject to the NOx budget and allowance trading requirements
promulgated by the Pennsylvania Department of Environmental Protection ("PaDEP") at 25 Pa. Code § 123.101et seq.("NOx
Allowance Program"), pursuant to the Air Pollution Control Act, as amended, 35 P.S. § 4001et seq.

WHEREAS,
pursuant to the NOx Allowance Program, the Owner Lessors, as the new owners of the Homer City Station, are required to designate an authorized account representative
for the NOx affected sources at the Homer City Station subject to PaDEP's NOx Allowance Program (a "NOx Designated Representative").

WHEREAS,
the Owner Lessors have not purchased nor paid for emission allowances from EMEHC as part of the purchase of Undivided Interests in the Homer City Station, and wish to provide
authority to EMEHC to appoint a NOx Designated Representative for purposes of controlling disposition of such allowances at all times and for so long as the Facility Leases are in effect.

AGREEMENT

NOW, THEREFORE, in consideration of the foregoing recitals, the parties hereto covenant and agree as follows:

1.Appointment.Each Owner Lessor hereby irrevocably grants to EMEHC the right to appoint a NOx
Designated Representative and any successors thereto for the Homer City Station, including, but not limited to Homer City Station Boiler Nos. 1, 2 and 3, as required under the NOx
Allowance Program, and EMEHC hereby accepts the right to so appoint a NOx Designated Representative unless and until the applicable Facility Lease expires or is terminated in accordance
with its terms.

2.Scope of Appointment.EMEHC and each Owner Lessor agree that EMEHC's chosen NOx Designated
Representative's duties and responsibilities as NOx Designated Representative shall be as required under the NOx Allowance Program.

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3.Termination of Appointment.EMEHC and each Owner Lessor agree that EMEHC's right to appoint a NOx
Designated Representative under this Agreement shall be terminated upon termination of the applicable Facility Lease pursuant to an Event of Default (as defined in such Facility Lease) in accordance
with the terms of such Facility Lease, and upon submission to PaDEP of a superseding Account Certificate of Representation pursuant to 25 Pa. Code § 123.104, which superseding certificate
is sufficient if signed by the Owner Lessors, only.

4.Acknowledgment of Powers of NOx Designated Representative.EMEHC and each Owner Lessor hereby
acknowledge that (i) for the duration of its appointment, the NOx Designated Representative shall have full power and authority to sell, assign and otherwise dispose of
NOx allowances allocated to the Homer City Station on behalf of and at the direction of EMEHC, or to transfer such allowances from the account maintained for the Homer City Station to any
other account maintained by EMEHC or its affiliates (which allowances so transferred shall remain the property of EMEHC or other transferee notwithstanding the termination of this Agreement or any
other Operative Document (as defined in each of the Participation Agreements)), without compensation to the Owner Lessors, in each case in accordance with the provisions of each of the Participation
Agreements by and among Homer City, the Owner Lessor, Wells Fargo Bank Northwest, National Association, not in its individual capacity but solely as Owner Manager, General Electric Capital
Corporation, as the Owner Participant, Homer City Funding LLC, as Lender, the Lease Indenture Trustee and United States Trust Company of New York, not in its individual capacity but solely as
Bondholder Trustee (as amended, modified and supplemented and in effect from time to time) (the "Participation Agreements"); and (ii) the
termination of EMEHC's right to appoint a NOx Designated Representative Agreement as described in Section 3 hereof shall not obligate the Designated Representative, EMEHC or any
Owner Lessor to pay additional consideration to the other parties hereto to effectuate the filing and acceptance by PaDEP of a superceding Account Certificate of Representation pursuant to 25 Pa. Code
§ 123.104.

5.Further Assurances.The parties hereto agree to promptly perform or cause to be performed any and all acts
and execute or cause to be executed any and all documents (including financing statements and continuation statements) as may be necessary in order to carry out the intent and purposes of this
Agreement and the appointments contemplated hereby and to take any and all steps necessary to effectuate the intent of the foregoing and the other Operative Documents, including without limitation,
taking all actions, making all filings, or taking such other steps as may be necessary to maintain the NOx Designated Representative chosen by EMEHC in its sole discretion as the
Designated Representative unless and until any Facility Lease is terminated in accordance with its terms, and thereafter, to appoint and maintain as successor designated representative the designee of
the Owner Lessors.

6.Counterparts; Effectiveness.This Agreement may be executed in any number of counterparts each of which shall
be an original with the same effect as if the signatures thereto and hereto were upon the same instrument. This Agreement shall become effective when each party hereto shall have received a
counterpart hereof signed by the other hereto.

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IN
WITNESS WHEREOF, the parties hereto have executed this Agreement as of the date first above written.

| |  | EME HOMER CITY GENERATION L.P.,
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| |  | By:                            
| |  | By:                            
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| |  | HOMER CITY OL1 LLC             
| |  | By:                            
| |  | By:                            
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| |  | HOMER CITY OL2 LLC             
| |  | By:                            
| |  | By:                            
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| |  | HOMER CITY OL3 LLC             
| |  | By:                            
| |  | By:                            
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| |  | HOMER CITY OL4 LLC             
| |  | By:                            
| |  | By:                            
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| |  | HOMER CITY OL5 LLC
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| |  | By:               
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| |  | HOMER CITY OL6 LLC
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| |  | HOMER CITY OL7 LLC
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| |  | HOMER CITY OL8 LLC
| |  | By:               
| |  | By:               
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| |  |                   

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