Exhibit 10.17.2 FIRST AMENDMENT TO AGREEMENT FOR PURCHASE AND SALE OF ELECTRIC POWER This FIRST AMENDMENT, dated as of June 11, 1991 ("Amendment") to the Agreement of Purchase and Sale of Electric Power, dated October 28, 1986, ("Agreement") between...Agreement for Purchase and Sale of Electric Power • December 19th, 1997 • NRG Generating U S Inc • Cogeneration services & small power producers
