The IPL Advancion Energy Storage Array System is a 20,000kW energy storage project located in Indianapolis, Indiana, US.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2015 and was commissioned in 2016.


The IPL Advancion Energy Storage Array System was developed by Indianapolis Power & Light. The project is owned by Indianapolis Power & Light (100%), a subsidiary of IPALCO Enterprises.

The key application of the project is frequency regulation.

Contractors involved

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Indianapolis Power & Light and Samsung SDI have delivered the battery energy storage project.

Additional information

Indianapolis Power & Light Company, a subsidiary of AES Corporation, developed a grid-scale, battery-based energy storage system to improve reliability and lower costs for its customers. The battery storage system will provide 20 MW / 20 MWh of interconnected advanced, battery-based energy storage. The battery storage facility will deliver enhanced grid reliability and ancillary services, focused on primary frequency response, with possible other services as conditions and markets allow.

About Indianapolis Power & Light

Indianapolis Power & Light Co (IPL), a subsidiary of IPALCO Enterprises Inc, is an integrated electric utility. It generates, transmits, distributes, and sells electric energy; and produces electricity from coal, oil, and natural gas sources. IPL owns and operates power plants in Indiana. The company’s electric system is interconnected with the electric systems of Indiana Michigan Power Company, Vectren Corporation, and Hoosier Energy Rural Electric Cooperative Inc; and the electric system jointly owned by Duke Energy Indiana, Indiana Municipal Power Agency, and Wabash Valley Power Association Inc. It serves residential, commercial, industrial, and public lighting customers in the city of Indianapolis and neighboring cities, towns and communities, and adjacent rural areas within the state of Indiana; and participates in wholesale markets through the Midcontinent Independent System Operator Inc. IPL is headquartered in Indianapolis, Indiana, the US.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.