California Code, Public Resources Code - PRC § 25415

(a) Each eligible institution to which an allocation has been made under this chapter shall repay the principal amount of the allocation, plus interest, in not more than 40 equal semiannual payments, as determined by the commission. Loan repayments shall be made in accordance with a schedule established by the commission. The repayment period shall not exceed the life of the equipment, as determined by the commission or the lease term of the building in which the eligible energy, energy storage, or electric vehicle charging infrastructure project or measures will be installed.

(b) Notwithstanding any other law, the commission shall, unless it determines that the purposes of this chapter would be better served by establishing an alternative interest rate schedule, periodically set interest rates on the loans based on surveys of existing financial markets and may authorize no-interest loans.

(c) The governing body of each eligible institution shall annually budget an amount at least sufficient to make the semiannual payments required in this section.For an eligible energy project or measures, the amount shall not be raised by the levy of additional taxes but shall instead be obtained by a savings in energy costs or other sources.