The Administrator is authorized to issue and sell to the Secretary of the Treasury from time to time in the name and for and on behalf of the Bonneville Power Administration bonds, notes, and other evidences of indebtedness (in this chapter collectively referred to as “bonds”) to assist in financing the construction, acquisition, and replacement of the transmission system, to implement the Administrator’s authority pursuant to the Pacific Northwest Electric Power Planning and Conservation Act [
16 U.S.C.
839 et seq.] (including his authority to provide financial assistance for conservation measures, renewable resources, and fish and wildlife, but not including the authority to acquire under section 6 of that Act [
16 U.S.C.
839d] electric power from a generating facility having a planned capability greater than 50 average megawatts), and to issue and sell bonds to refund such bonds. Such bonds shall be in such forms and denominations, bear such maturities, and be subject to such terms and conditions as may be prescribed by the Secretary of the Treasury taking into account terms and conditions prevailing in the market for similar bonds, the useful life of the facilities for which the bonds are issued, and financing practices of the utility industry. Refunding provisions may be prescribed by the Administrator. Such bonds shall bear interest at a rate determined by the Secretary of the Treasury taking into consideration the current average market yield on outstanding marketable obligations of the United States of comparable maturities, plus an amount in the judgment of the Secretary of the Treasury to provide for a rate comparable to the rates prevailing in the market for similar bonds issued by Government corporations. Beginning in fiscal year 1982, if the Administrator fails to repay by the end of any fiscal year all of the amounts projected immediately prior to such year to be repaid to the Treasury by the end of such year under the repayment criteria of the Secretary of Energy and if such failure is due to reasons other than