Cal. Pub. Util. Code § 740.4
(c) Economic development activities may include, but not be limited to, the following:
(e)
(g) The commission may authorize rate discounts to industries or business entities whose facilities are located or will be located within the boundaries of enterprise zones, recycling market development zones, or economic incentive areas pursuant to paragraph (1) of subdivision (e). These discounts may be applied in either of the following ways: