New Hampshire retailer installs first utility-scale battery with ENGIE

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New Hampshire Electric Cooperative, an energy provider to 85,000 homes and businesses in 118 New Hampshire communities, has completed its first utility-scale battery energy storage project with ENGIE North America.

The 2.45MW battery storage project is co-located with the cooperative’s 2MW solar array in Moultonborough. The plant will charge from the main distribution system during times of low demand and discharge during periods of peak regional electricity use. By discharging during hours of peak electric usage, the battery will save the cooperative’s members on the regional market and delivery charges while reducing demand on the grid.

The battery storage unit is the largest in New Hampshire and can fully charge or discharge within two hours.

ENGIE will own, operate, maintain and manage the plant. New Hampshire Electric Cooperative will discharge the battery to supply energy to its members up to 70 times per year to reduce transmission charges and regional capacity payments. Up to $2.3 million in consumer savings are expected to be incurred from the battery over the next 12 years.

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New Hampshire Electric Cooperative will use the project to gain knowledge on how battery storage technologies respond to price signals and interact with its electrical system.

Steve Camerino, the CEO of the cooperative, said: “Energy storage is a rapidly evolving technology that has a key place in our strategic vision for our business model of the future. It’s important for NHEC to gain firsthand experience with batteries so we can better understand the benefits they have to offer our members and the operation of our system.

“As more Co-op members install their own batteries, NHEC needs to be ready to support them with a flexible, responsive grid. We are excited to make significant progress on our strategic vision through this innovative partnership with ENGIE, which will provide benefits to all NHEC’s members.”

Laura Beane, Chief Renewables Officer of ENGIE North America, adds: “The addition of battery storage systems such as these is not only delivering real value to customers today but also helping to accelerate the energy transition. NHEC’s leadership in commissioning this project reflects their commitment to innovation in supporting cost-effective, clean energy for their members.”