MWh. In September 2021, Phase 1 was shut down after a high temperature event caused by a leak in a liquid cooling hose, while Phase 2 kept operating. In February 2022, Phase 1 remained offline while Phase 2 also went offline after a sprinkler event. Most of the facility was back in operation as of July 2022. An expansion to 1,500 MW / 6,000 MWh (also connecting to the 500 kV grid) was approved in August 2020, but not decided. Elkhorn 115 kV Utilities in California are required by a 2013 law to provide significant battery storage by 2024. Pacific Gas & Electric (PG&E) asked the CPUC to approve four energy storage projects located at Moss Landing including another large lithium-ion battery storage system of 182.5 MW / 730 MWh ("Elkhorn") to be provided by Tesla and owned and operated by PG&E, connecting to the regional 115 kV grid. The project is designed to improve energy reliability and to allow for more renewable energy sources to be used at the Moss Landing site by increasing electricity storage available in California. The project also aims to save costs by reducing PG&E's reliance on peaker power plants that come online during periods of increased demand. On July 3, 2019, in accordance with the California Environmental Quality Act, the County of Monterey Resource Management Agency published a Mitigated Negative Declaration, detailing actions that must be taken to mitigate potential environmental impacts of the project. The report concluded that the project would have a "Less than Significant Impact" on the environment, assuming the correct mitigating actions were taken. Specifically, it was found that mitigating actions were required to minimize the environmental impact of the project on "biological resources" such as wildlife habitat, and on "cultural resources", especially culturally-significant archaeological sites at the proposed location of the Megapack deployment. The project was subsequently opened to public submissions on its environmental impact. California Unions for Reliable Energy argued that the County of Monterey failed to meet the standards of the California Environmental Quality Act when performing its environmental assessment. This same union group, with the same legal representation, used similar arguments against the California Flats solar project in order for organized labor to get concessions from the developer. In February 2020, the Monterey County Planning Commission unanimously approved the project, which was initially scheduled to start construction in late March and be complete by 2021. However,