Utility-scale battery storage took a serious soar ahead this month as Pacific Gas & Electric and Tesla started development on a 182.5MW lithium-ion system in Monterey County, California.
PG&E will personal the power at its substation in Moss Landing, however the design, development and upkeep operations might be joint effort each by the San Francisco-based utility and the battery and EV manufacturing big. Once accomplished, the companions say, Moss Landing would be the largest utility-owned, li-ion battery vitality storage system on this planet.
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“Battery vitality storage performs an integral position in enhancing general electrical grid effectivity and reliability, integrating renewable sources whereas lowering reliance on fossil gasoline era. It can function an alternative choice to costlier, conventional wires options, leading to decrease general prices for our prospects,” mentioned Fong Wan, senior vp, Energy Policy and Procurement, PG&E. “The scale, function and adaptability of the Moss Landing Megapack system make it a landmark within the growth and deployment of utility-scale batteries.”
It consists of set up of 256 Tesla Megapack battery models on 33 concrete slabs. The Megapack, which was launched by the corporate final 12 months and is being made on the Tesla Gigafactory in Nevada (pictured), can retailer as much as three MWh of electrical energy per unit.
Each unit homes batteries and energy conversion gear in a single cupboard. Transformers and switchgears may also be put in together with the Megapacks to attach vitality saved within the batteries with the 115 kilovolt (kv) electrical transmission system.
The Battery Energy Storage System (BESS) could have the capability to retailer and dispatch as much as 730MWh of vitality to grid at a most charge of 182.5MW for as much as 4 hours during times of excessive demand. PG&E’s settlement with Tesla incorporates an upsize choice that may enhance the capability of the system as much as six hours or 1.1GWh complete.
Moss Landing BESS will take part within the California Independent System Operator (CAISO) markets, offering vitality and ancillary service–akin to serving as an working reserve that may rapidly be dispatched to make sure there’s ample era to fulfill load — to the CAISO-controlled grid.
“Energy storage is crucial in attaining California’s clear vitality objectives, and the California ISO seems to be ahead to working with PG&E in advancing its storage initiatives,” mentioned Mark Rothleder, vp, Market Quality & California Regulatory Affairs, CAISO.
In February 2017, PG&E deployed its first lithium-ion vitality storage system, that includes Tesla Powerpack expertise, at its Browns Valley substation (roughly 50 miles north of Sacramento).
As of May 2020, PG&E has awarded contracts for battery vitality storage initiatives totalling greater than 1,000MW capability to be deployed all through its service space by means of 2023. Third-party owned initiatives embrace a transmission-connected 300MW BESS (additionally to be situated in Moss Landing), a transmission-connected 75MW BESS situated close to town of Morgan Hill, Calif, and a 2 MW BESS at PG&E’s Gonzales substation within the Salinas Valley. PG&E-owned initiatives embrace a 20 MW BESS situated at PG&E’s Llagas substation in Gilroy, Calif.
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Up to 50 PG&E workers and contractors will assemble the system, and all COVID-19 security protocols together with a each day well being examine, bodily distancing, and carrying face coverings might be adopted. The BESS was authorized by the California Public Utilities Commission in November 2018 and by the Monterey County Planning fee in February 2020.
CAISO serves about 80% of California and a small a part of Nevada. California state leaders are mandating 100% clear vitality era by 2045, together with 33% by the tip of this 12 months.
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