Exhibit 10.57

RELIANT ENERGY, INC.
EXECUTIVE SEVERANCE PLAN
Effective January 1, 2006

PLAN DOCUMENT AND SUMMARY PLAN DESCRIPTION

---









2

---





3

---





4

---





5

---











6

---





7

---







8

---







9

---





| |  | RELIANT ENERGY, INC.
| |  | --------------------
| |  | By:                 
| |  | Date:               

10

---



EXHIBIT A
DEFINITIONS

As
used in this Plan, the following terms shall have the following meanings (and the singular includes the plural, unless the context clearly indicates otherwise):

Affiliate:Each corporation, partnership or other business entity which is 50% or more owned, directly or indirectly, by Reliant
Energy, Inc.

AICP:The Company's Annual Incentive Compensation Plan, as in effect from time to time or any similar successor plan adopted by the
Company.

Benefits Committee:The Benefits Committee appointed by the Board of Directors pursuant to Section 12 of the Plan.

Cause:Termination from employment, as determined in the sole discretion of the Company, due to unacceptable performance, failure to
perform, misconduct, negligence, dishonesty, excessive absenteeism, acts detrimental or destructive to the Company or its Affiliates, employees or property, or any violation of the policies of the
Company or its Affiliates. This definition applies to this Plan only and is not meant to define the legal grounds for a termination for cause. Use of the term in this Plan does not change or modify
any employee's at-will status.

COBRA:The Consolidated Omnibus Budget Reconciliation Act of 1985 as amended from time to time, currently embodied in Internal Revenue Code
Section 4980B, which provides for continuation of group health plan coverage in certain circumstances.

Code:The Internal Revenue Code of 1986, as amended.

Company:Reliant Energy, Inc., a Delaware corporation, and any successor to Reliant Energy, Inc.

Comparable Employment:Employment with an Employer, any Affiliate, an Outsourced Employer or a Divested Employer that (1) provides
total annual compensation (including base pay and bonus opportunity not less than 90 percent of the Employee's Compensation, and (2) is at a location that is not more than 50 miles from
the principal place of employment for the Employee on the Employee's Notice Date.

Compensation:The Employee's annual base salary and target incentive award opportunity under the AICP as of his or her Notice Date.

Disability:Disability within the meaning of the Company's Long Term Disability Plan.

Divested Employer:(1) a division, subsidiary, venture or partnership, or other business segment of the Company or an Affiliate of the
Company, which has been or is proposed to be divested, or (2) the proposed or actual purchaser or acquirer thereof, by reason of ownership or acquisition of stock assets or otherwise, and
includes any Affiliate of such Divested Employer.

Effective Date:January 1, 2006.

Eligible Employee:An Employee described in Section 3.

Employee:Any person (1) who is designated on employment records of an Employer as an active, regular (not designated temporary or
contractor), full-time employee of the Employer; (2) who is designated as an officer by functional title; and (3) and whose compensation is classified in the Company's
compensation system or records as being in Market Zone M403 (or its equivalent should the Company charge nomenclature) or above for base salary and bonus.

Employer:The Company and any Affiliate of the Company that with the consent of the Company has become a participating employer in the
Plan. A list of the Employers is attached to this document as Exhibit B, which may be amended by the Company from time to time.

11

---



ERISA:The Employee Retirement Income Security Act of 1974, as amended.

Notice:A written notice provided to an Employee which states that the employment of the Employee will be terminated, advises the Employee
of his or her scheduled Termination Date and states that the Employee is eligible for participation in this Plan.

Notice Date:The date on which an Employee receives a Notice.

Outsourced Employer:A third-party service provider to whom the Company has outsourced business functions or services.

Participant:An Eligible Employee who meets the requirements set forth in Sections 3.1, 3.2 and 3.3 of this Plan.

Plan Administrator:The Benefits Committee appointed by the Board of Directors of Reliant Energy, Inc.

Severance Benefits:Benefits described in Sections 5, 6(a)(1) and 6(a)(2).

Termination Date:The last day on which an Employee is carried on the active payroll of an Employer.

Waiver and Release, or Waiver and Release Agreement:The legal document in which an Employee, in exchange for Severance Benefits under the
Plan, among other things, releases the Company and all of the Affiliates, their directors, officers, employees and agents, their employee benefit plans, and the fiduciaries and agents of said plans,
and all other entities and persons set forth in the Waiver and Release, from liability and damages in any way related to the Employee's employment with or separation from employment with the Company
or any of its Affiliates. The Company may include other matters in the Waiver and Release Agreement, as the Company determines in its sole discretion, including, but not limited to, the provisions of
Section 7.

12

---



EXHIBIT B
PARTICIPATING EMPLOYERS

Orion
Power Operating Services Midwest, Inc.
Reliant Energy Corporate Services, LLC
Reliant Energy Florida, LLC
Reliant Energy, Inc. (formerly, Reliant Resources, Inc.)
Reliant Energy Mid-Atlantic Power Services, Inc.
Reliant Energy Retail Services, LLC

13

---



QuickLinks