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Cascade Energy Storage, LLC Battery Storage Project 1. Project Description 1.1 Introduction The Cascade Energy Storage, LLC project(project)is 25-megawatt(MW)/100-megawatt-hour(MWh)battery energy storage system (BESS)facility. It will be located in Stockton, CA. The proposed project will be composed of lithium energy batteries installed in containers, as well as other associated equipment to connect into the PG&E's 60 kilovolt (kV) Weber substation in Stockton, California. The containers will house battery storage racks separated by aisles, with relay and communications systems for automated monitoring and managing of the batteries to ensure design performance. Batteries operate with direct current (DC) electricity that must be converted to alternating current (AC)to be compatible with the existing electric grid. Separate from the containers,power inverters to convert between AC and DC would be installed, along with transformers,to step up the voltage. The proposed BESS facility will not generate electricity. It will provide a service by receiving energy(charging) from the point of interconnection (POI)with the PG&E electric transmission system, and then later delivering energy (discharging) back to the POI. Following construction, the proposed use will not create emissions to air, will not require sanitary facilities, and will not require water for operations. Access to the site will either be from the north side on Carpenter Road,or on the west side from Pock Lane,via an existing PG&E easement. 1.2 Project Location The project site is the southern 2.0 acre portion of the property at 2482 Carpenter Road, Stockton, CA 95205 (APN 179-140-180-000). The project site is currently a vacant area with no current use. The area is zoned R/L with zoning designation AU-20. 1.3 Project Objectives The project will provide the State of California with a reliable and economic development to receive, store and discharge electricity from the California Independent System Operator (CAISO)-controlled electric grid. The project would interconnect to the PG&E grid at a meter located on site.The project will sell energy capacity to PG&E under a twenty-year agreement. Construction of the project would: • Establish a new energy storage facility to reliably capture and manage energy in an economically feasible and commercially financeable manner. • Develop a disturbed site that is within an existing energy infrastructure that minimizes environmental impacts as no off-site improvements would be required. • Provide economic benefit to the region and the State, through construction jobs, property and sales taxes,and increased energy efficiency and grid reliability. • Use proven and established energy storage technology that is efficient, requires low maintenance, Page 4