Two facilities totaling 37.5 MW will enhance reliability, maximize renewable energy use in Southern California 

SAN DIEGO, February 28, 2017 – AES Energy Storage, a subsidiary of The AES Corporation (NYSE: AES), showcased two new Advancion® battery-based energy storage sites, totaling 37.5 megawatts (MW), in partnership with San Diego Gas & Electric (SDG&E), a leading energy company delivering safe, reliable and clean power. One of the sites – located at a SDG&E substation in Escondido, California – hosts a 30 MW, four-hour duration energy storage project, representing the world’s largest lithium ion battery-based energy storage installation, 50 percent larger than the next largest installation. Both SDG&E sites join more than 200 MW of installed Advancion battery storage capacity deployed around the world.

In July 2016, SDG&E fast-tracked energy storage projects to enhance regional grid reliability and selected Advancion 4, AES’ fourth generation battery-based energy storage platform. Already a leader in sourcing renewable energy for its customers with more than a third of its supplied energy drawn from wind and solar, SDG&E accelerated the deployment of battery-based energy storage to improve reliability and allow integration of greater amounts of renewable energy moving forward.


Advancion is the world’s most proven energy storage platform, with more than 3.5 million megawatt-hours of delivered service and 436 MW in operation, construction or late stage development across seven countries and four continents. Designed for rapid deployment, AES delivered and interconnected SDG&E’s Advancion arrays in six months, demonstrating energy storage’s flexibility as a resource for utilities challenged to bring on new system capacity quickly.

The scale and long battery duration of the project signals a new era for storage being deployed as flexible capacity, addressing reliability issues that had previously been the domain of traditional fossil fuel-based resources like natural gas peaking power plants.

“California has created the launchpad for energy storage adoption on a global scale,” said John Zahurancik, President, AES Energy Storage. “By prioritizing storage to address real system needs today, SDG&E is leading the way, creating a sustainable model that others can follow to achieve a clean, unbreakable grid.”

AES opened up the Advancion platform in 2015 to direct ownership by utilities, developers and commercial customers. SDG&E’s purchase of Advancion further demonstrates its commitment to leveraging proven and innovative technologies, both to meet its clean energy and carbon emission goals and to contribute to California’s leadership in transforming its electric grid to ensure clean, reliable power for customers.



Located at SDG&E substations in Escondido and El Cajon, the Advancion energy storage arrays will provide 37.5 MW of power and serve as a 75 MW flexible resource to the grid. Combined, the arrays will provide enough capacity to power approximately 25,000 homes for four hours. Both arrays incorporate components from best-in-class Advancion-certified suppliers, including batteries by Samsung SDI and power conversion systems by Parker Hannifin.

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About AES Energy Storage

AES Energy Storage, a subsidiary of The AES Corporation, is a leader in commercial energy storage solutions, which improve flexibility and reliability of the power system, and provide customers with a complete alternative to traditional energy infrastructure investments such as peaking power plants.  The company’s Advancion® 4 energy storage solution is available for sale to leading utilities, power markets, and independent power producers, and AES Energy Storage and its partners can manage installations from concept to operation with a market-proven solution that integrates best in class battery and power conversion technologies. AES Energy Storage introduced the first grid-scale advanced battery-based energy storage solution in commercial operations in 2008 and operates the largest global fleet of battery-based storage assets in service today. AES Energy Storage has a total of 436 MW of interconnected energy storage, equivalent to 872 MW of flexible resource, in operation, construction or late stage development across seven countries and four continents. To learn more, please visit www.aesenergystorage.com or @aes_es on Twitter.

About AES

The AES Corporation (NYSE: AES) is a Fortune 200 global power company. We provide affordable, sustainable energy to 17 countries through our diverse portfolio of distribution businesses as well as thermal and renewable generation facilities. Our workforce of 19,000 people is committed to operational excellence and meeting the world’s changing power needs. Our 2016 revenues were $14 billion and we own and manage $36 billion in total assets.  To learn more, please visit www.aes.com.  Follow AES on Twitter @TheAESCorp.


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