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Massachusetts town adds energy storage solution in order to become more energy resilient Options
Posted: Saturday, November 5, 2016 4:14:45 PM

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Location: Zimmerman, Minnesota, United States

The 2-megawatt, 3.9 megawatt-hour battery storage system, to be installed at the Sterling Municipal Light Department’s Chocksett Road Substation, is one of a number of similar projects funded under the Massachusetts Department of Energy Resources’ Community Clean Energy Resiliency Initiative, which awards grants for clean, resilient energy systems to support critical infrastructure during grid outages.

During a power outage, the Sterling energy storage system will be able to “island” from the grid and, with the support of existing solar generation, provide up to 12 days of backup power to the town’s police station and dispatch center, a critical facility providing first responder services.

By discharging the batteries during hours of peak electricity demand, Sterling will be able to significantly reduce its costs for electricity capacity and transmission services. These are monthly and annual fees the utility pays to ISO New England, the regional independent grid operator, and they make up a large and growing portion of the cost of doing business as a utility in the region. SNL has calculated that through peak shaving and other cost saving uses of the batteries, Sterling should be able to pay off its new energy storage system in fewer than seven years. Thereafter, additional cost savings should lower rates for Sterling’s ratepayers.
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