exhibit 10 ( b ) 16 filing public utility system energy resources, inc. rate schedule ferc no. 2 public utilities receiving service under rate schedule public utilities receiving service under rate schedule public utilities receiving service under rate schedule public utilities receiving service under rate schedule public utilities receiving service under rate schedule entergy arkansas, inc. entergy louisiana, llc entergy mississippi, inc. entergy new orleans, llc service to be provided under rate schedule wholesale sale of electric power unit power sales agreement this agreement, made, entered into, and effective as of this 10th day of june, 1982, as amended from time to time thereafter, and as revised to comply with federal energy regulatory commission ( “ ferc ” ) opinion nos. 446 and 446 - a and ferc order no. 614, between and among entergy arkansas, inc. ( “ eai ” ), entergy louisiana, llc ( “ ell ” ), entergy mississippi, inc. ( “ emi ” ), entergy new orleans, llc ( “ enol ” ) and system energy resources, inc. ( “ system energy ” ). th witnesseth that : whereas, system energy was incorporated on february 11, 1974 under the laws of the state of arkansas to own certain future generating capacity for the entergy system, of which eai, ell, emi and enol ( “ system companies ” ) are members ; and whereas, system energy has accordingly undertaken the ownership and financing of an undivided interest in, and construction of, the grand gulf generating station, a one - unit, nuclear - fueled electric generating station on the east bank of the mississippi river near port gibson, mississippi ( “ project ” ) ; and whereas, the system companies own and operate electric generating, transmission and distribution facilities in arkansas, louisiana and mississippi and generate, transmit and sell electric energy both at retail and wholesale in such states ; and whereas, system energy has agreed to sell to eai, ell, emi and enol ( “ purchasers ” ) specified percentages of all of the capacity and energy available to system energy from the project, and the system companies have agreed to join with system energy, before the date unit i of the project is placed in service, in executing an agreement which will set forth in detail the terms and conditions for the sale of such capacity and energy by system energy to the system companies ; and whereas, unit 1 is expected to be placed in commercial operation in the first quarter of