"Adjuntas, Puerto Rico, is celebrating a milestone this week as it completes the final phase in a project to boost its energy resiliency," said Ricardo Arduengo for Grist. "The community’s 17,600 residents now host the archipelago’s first cooperatively managed solar microgrid — a network of photovoltaic panels and battery storage units that will use renewable energy to keep the lights on and power flowing during a power outage."
"The system includes some 700 panels mounted on seven buildings in the town’s central plaza and a battery storage system capable of providing up to 187 kilowatts of power.* The batteries can provide enough off-grid electricity to keep 14 downtown businesses running for up to 10 days, serving as community hubs in case of an extended power outage."
"Business owners and residents will run the microgrid through a nonprofit called the nonprofit Community Solar Energy Association of Adjuntas, which will sell electricity to the commonwealth’s grid through a power purchase agreement. Money saved by not buying power from Puerto Rico’s main power company will support maintaining the microgrid and starting new community projects, according to the Honnold Foundation."