Decatur Island: Opalco’s first local microgrid completed

Power utility Orcas Power and Light Cooperative (OPALCO), Eastsound, Washington, has installed a 1MW/2.6MWh lithium iron phosphate battery storage system to supply around four hours of power to 500 homes on the US north coast.

The first local renewable microgrid is complete on Decatur Island, one of the San Juan Islands in Washington State. What’s a microgrid? In this case, a relatively small solar array coupled with one mega-watt of battery storage.

“The Decatur project is the first of many microgrids planned that will start to give the islands a small local power supply to help us get through mainland system outages – which will become more frequent as the region shifts away from carbon, as mandated by the Clean Energy Transformation Act“, the company says. This project has potential to power about 500 homes for about four hours (based on average usage). OPALCO plans to build community solar + energy storage microgrid projects near each village center – where essential services are located – and, eventually, enough battery power to support electric ferry charging as the Washington State Ferries fleet is replaced with hybrid electric ferries.

Members who subscribed to the Community Solar project covered 100% of that project cost and the Washington Department of Commerce provided a $1M CEF2 grant for the battery project through the Clean Energy Fund (CEF) Grid Modernization program.

“Investing in electric grid resilience is essential for every community to share in the full potential of Washington’s clean energy future,” said Washington State Commerce Director Lisa Brown. “The OPALCO project is a very successful example of how we can use the state Clean Energy Fund to partner with smaller utilities to strengthen rural communities and help them meet their unique needs and goals.”

“We’ll always be tied to the mainland to power our lives in San Juan County,” said General Manager Foster Hildreth,  “but this microgrid is an important first step in our bigger plan to provide some local power during emergencies to keep essential services up and running for the health and safety of our island communities.”



E-CHARGE 2023, the first event in Europe exclusively dedicated to the electric mobility industry


NIO and Sinopec power swap station 2.0 starts operation in Beijing

you may also like

comments have been closed



Back to top