EXHIBIT 10-50 AMENDMENT NO. 10 to THE SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN of NEW YORK STATE ELECTRIC & GAS CORPORATION The Supplemental Executive Retirement Plan of New York State Electric & Gas Corporation, effective September 7, 1984, is hereby amended as follows: 1. Paragraph 3 is hereby amended to read as follows: 3. Provisions Applicable to All Salaried Employees Concerning Pension Benefits. All employees of the Corporation, other than ones included in a unit of employees covered by a collective bargaining agreement, shall receive the amount of benefits specified under the Corporation's tax qualified Retirement Benefit Plan for Employees (i) without regard to any limitations imposed on these pension benefits by any provision of the Internal Revenue Code of 1954, as amended, and the regulations thereunder, whether now existing or as may hereafter be adopted and (ii) by including as "Basic Compensation" for purposes of said plan any amounts of the salaried employee's compensation that would constitute "Basic Compensation" under said plan but for the salaried employee's election to defer such amount pursuant to the Corporation's Deferred Compensation Plan for Salaried Employees (hereinafter called the "Deferred Compensation Plan"). Payment of this benefit shall be made in the same form as elected by the salaried employee under the Retirement Benefit Plan for Employees. The benefit payable pursuant to this Paragraph 3 shall be calculated by subtracting the sum of (i) the benefit payable under the Corporation's Retirement Benefit Plan for Employees and (ii) any benefit payable pursuant to Section 7 of a Deferred Compensation Agreement executed pursuant to the Deferred Compensation Plan in order to defer part of the salaried employee's compensation (other than awards pursuant to the Corporation's Annual Executive Incentive Compensation Plan) from the benefit described in the first sentence of this Paragraph 3. This amendment is effective as of January 7, 1994.