Cal. Pub. Util. Code § 2833
(a)
(d) A participating utility shall permit customers within the service territory of the utility to purchase electricity pursuant to the tariff approved by the commission to implement the utility’s green tariff shared renewables program, until the utility meets its proportionate share of a statewide limitation of 600 megawatts of customer participation, measured by nameplate rated generating capacity, or the participating utility’s green tariff shared renewables program is terminated or suspended. The proportionate share shall be calculated based on the ratio of each participating utility’s retail sales to total retail sales of electricity by all participating utilities. The commission may place other restrictions on purchases under a green tariff shared renewables program, including restricting participation to a certain level of capacity each year. The following restrictions apply to the statewide 600 megawatt limitation:
(1)
(A) One hundred megawatts shall be reserved for facilities that are no larger than one megawatt nameplate rated generating capacity and that are located in areas previously identified by the California Environmental Protection Agency as the most impacted and disadvantaged communities. These communities shall be identified by census tract, and shall be determined to be the most impacted 20 percent based on results from the best available cumulative impact screening methodology designed to identify each of the following: