Nightshade Battery Storage System

The Applicant, Mariposa Energy LLC, proposes to construct a battery storage system (BSS) within the fence line of their existing Mariposa Energy Project (MEP) site. The Project is called the Nightshade BSS and will be located at 4887 Bruns Road, Byron, Alameda County, California.
Project Owner
Diamond Generating Corporation
Docket Number
21-BSS-01
Capacity
50 MW
Location
4887 Bruns Road; Byron, CA 94514; Alameda County
Technology
Battery Storage System
Project Status
Denied
Project Type
Battery Storage System
Project Description

The proposed project is a 100-megawatt-hour (MWh) (25-MW / 4h discharge) Battery Storage System (BSS). To meet the accelerated project timeline laid out in  California Energy Commission (CEC) Order No: 21-0908-2 responding to the Governor's Energy Emergency Proclamation of July 30, 2021, Diamond Generating LLC has partnered with Mitsubishi Power Americas, Inc. (Mitsubishi Power) to guarantee BSS supply. Mitsubishi Power will supply full design and turnkey Engineering, Procurement, and Construction (EPC) of the BSS, including a battery management system and an energy dispatch management system for a fully functional project up to the utility point of  connection. The project has site control and can be fully constructed and ready to be online by October 31, 2022. Ability to meet this date is contingent on implementation of an expedited interconnection process as well as the CEC issuing a license pursuant to Order No: 21-0908-2.

 

Power Plant Certification and Exemption Processes

The CEC has the exclusive authority to certify all thermal power plants 50 megawatts (MW) and larger and related facilities proposed for construction in California. The Application for Certification (AFC) process is a certified regulatory program under the California Environmental Quality Act (CEQA). As a certified regulatory program, the CEC does not prepare environmental impact reports (EIRs) in an AFC proceeding, but instead prepares environmental assessment documents that are functionally equivalent to EIRs. A certificate issued by the CEC is in lieu of any permit, certificate, or similar document otherwise required by any state, local or regional agency, or federal agency to the extent permitted by federal law, and supersedes any applicable statute, ordinance, or regulation of any state, local, or regional agency, or federal agency to the extent permitted by federal law.

Contacts

Project Manager

Jon R. Hilliard
CME@energy.ca.gov
916-661-8174

Public Participation Questions

Public Advisor
publicadvisor@energy.ca.gov
916-957-7910

Media Inquiries

Media & Public Communications Office
mediaoffice@energy.ca.gov
916-654-4989