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The 30 megawatt (MW) energy storage plant at Escondido, CA, has a capacity of up to 120 megawatt-hours of energy. It could serve 20,000 customers for four hours.

Batteries

The World’s Biggest Lithium-Ion Energy Storage Facility

The 30 megawatt (MW) energy storage plant at Escondido, CA, has a capacity of up to 120 megawatt-hours of energy. It could serve 20,000 customers for four hours.

Originally published on the ECOreport.

As its name suggests, San Diego Gas & Electric’s #1 energy source is natural gas. It obtained 54% of its electricity from gas-burning plants in 2015. Yet, it also operates in a state which intends to produce 33% of its electricity from renewables by 2020. SDG&E has already exceeded that target, using renewables like solar, wind, and hydro to provide 35% of their supply. Now, in compliance with California Public Utilities Commission (CPUC) guidelines, SDG&E unveiled the world’s largest lithium-ion energy storage facility.

The World’s Largest Lithium-Ion Energy Storage Facility

The 30 megawatt (MW) energy storage plant at Escondido, CA, has a capacity of up to 120 megawatt-hours of energy. It could serve 20,000 customers for 4 hours.

A smaller, 7.5 MW installation was erected in El Cajon.

“On a day (like Friday), which is nice and sunny, but also cool, demands for energy in the middle of the day aren’t very high but production is. So we’d be storing solar in the day and releasing it at 6:00–7:00 tonight after everyone’s home from work, and school, and home with their families. It’s a tool that we can use to make the integration of solar and wind much more reliable and better matched to the times when our customers need it most,” said Josh Gerber, Project Director SDG&E.

“Even though this is the largest energy storage project in the world, it came online in about six months. So it is one of the quickest installed projects in the world as well,” said John Zahurancik, AES Energy Storage president.

“These projects affirm our commitment to deliver clean energy to customers and to provide a more reliable power supply to our electric grid when it is most needed,” said SDG&E’s president, Scott Drury.

165 MW Of Energy Storage By 2020

These two plants are the first steps in  SDG&E’s compliance with the CPUC regulations that it must procure a total of 165 MW of energy storage by 2020, and it must be operational by 2024.

SDG&E intends to develop, or interconnect, more than 330 MW of energy storage by 2030.

Photo Credits: 

  1. SDG&E Escondido Battery Energy Storage Facility. Courtesy SDG&E.
  2. After SDG&E President Scotty Drury (l) flipped a symbolic battery storage switch. With Drury is (l to r) CPUC President Michael Picker, AES President John Zahurancik, and Escondido Mayor Sam Abed. Courtesy SDG&E.
  3. SDG&E Escondido Battery Energy Storage Facility. Courtesy SDG&E.
 
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Written By

is the President of Cortes Community Radio , CKTZ 89.5 FM, where he has hosted a half hour program since 2014, and editor of the Cortes Currents (formerly the ECOreport), a website dedicated to exploring how our lifestyle choices and technologies affect the West Coast of British Columbia. He writes for both writes for both Clean Technica and PlanetSave on Important Media. He is a research junkie who has written over 2,000 articles since he was first published in 1982. Roy lives on Cortes Island, BC, Canada.

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