BRAINTREE − It is 50 feet long, gray and resembles a shipping container. Inside is enough electricity to power 600 to 700 homes for up to four hours.
It is the Braintree Electric Light Department’s Energy Storage Unit, which is at a substation off Grove Street. Officials at the town-owned utility showed-off the unit to state and local officials on Thursday. The unit can store electricity produced during off-peak times, including energy produced by three solar arrays in town, and then distribute it during peak times, when the wholesale cost of electricity is highest. It is made up of more than 20,000 lithium-ion batteries. (Read more)
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October 2019
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