Cal. Water Code § 74510

A district may construct, operate, and maintain one or more plants, which plants are constructed after the effective date of this section, for the generation of hydroelectric power and transmission lines for the conveyance thereof. Construction of the plants or plants and transmission lines may be financed by the issuance of revenue bonds pursuant to the Revenue Bond Law of 1941 (commencing with Section 54300 of the Government Code) or any other method of financing district works as provided in this division.