EXHIBIT 10.5 CONFIDENTIAL TREATMENT SIERRA PACIFIC POWER COMPANY HAS REQUESTED THAT THE MARKED PORTIONS OF THIS DOCUMENT BE ACCORDED CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED. MASTER AMENDMENT...Master Amendment to Confirmation Agreements • August 14th, 2002 • Nevada Power Co • Electric services • Utah
