The largest U.S. electric cooperative is adding an energy storage system

Pedernales Electric Cooperative

Aggreko, the world’s leading provider of mobile and modular power solutions, has signed an agreement with Pedernales Electric Cooperative (PEC), the largest electric cooperative in the U.S., to install and commission the utility’s first-ever battery energy storage system: a 2.25 MW / 4.5 MWh project in Johnson City, Texas.

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Aggreko was chosen based on its active participation in the ERCOT market, and because of its modular and scalable battery system design.

“The system will not only provide ancillary services to ERCOT, but will help add capacity to the electric grid,” said PEC CEO Julie C. Parsley.

Managed by Aggreko’s intelligent software and integrated with the company’s power electronics, the batteries will provide grid services to the Texas grid operator ERCOT. The system will also provide solar shifting from a nearby solar farm within the PEC service territory.

This will be Aggreko’s sixth battery storage project in the dynamic Texas energy storage market, where the company has long been a leader. These systems include the 36 MW Notrees project, North America’s largest wind-integrated battery plant, and an innovative DOE-funded project with Austin Energy combining 1.75 MW / 3.2 MWh of battery storage and solar power.

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