Where a school district requests an increased cost allowance for the design and construction of facilities which will conserve unreplenishable energy resources pursuant to Section 17718 of the act, a life cycle cost comparison must be submitted to the board. Such cost comparison shall be prepared by a competent authority and provide for the amortization of the increased cost allowance over a period not to exceed the lesser of 30 years or the term of the lease.
Cal. Code Regs. Tit. 2, § 1865.39