Cornucopia Hybrid Project

The Applicant submitted an unclassified conditional use permit (CUP No. 3777) and accompanying Variance application (variance no. 4184) to construct, operate, maintain, and ultimately decommission the Cornucopia Hybrid Project on approximately 2,446 acres in western Fresno County. The Project consists of three main components: a photovoltaic solar facility with a 300 megawatt (MW) alternating current (ac) generating capacity with associated substation, a 300 MWac energy storage system, and Pacific Gas and Electric Company infrastructure improvements, including a 230 kilovolt (kV) switching station to interconnect the Project to the regional electric grid. The substation would include an electrical control building and would tie into the PG&E switching station via a new transmission line. The energy storage system would use lithium-ion, lithium-ion and iron-flow, or sodium sulfur batteries and would be located adjacent to the substation, with a footprint of approximately 12 acres in size.On-site support facilities for the Project would include power conversion systems, including bi-directional inverters, transformers, and associated connection lines; heating, ventilation, and air conditioning units or a liquid cooling system for the ESS; fencing; access roads; a supervisory control and data acquisition system; two prefabricated structures to be used for operation and maintenance (O&M) services and for control services; and security lighting. Diesel generators may be needed temporarily during construction to power the temporary construction lighting.