Residential solar developer Sunrun Inc. announced Dec. 7 that it will make its BrightBox battery storage solution available to customers in Long Island, N.Y.

The service is available in areas where electric utilities offer advanced time-varying rates and programs. Sunrun will maintain, monitor and insure the service for 20 years.

"BrightBox can play a critical role for homeowners who want to have electricity to power through any storm, while also supporting New York's goals to power its future with clean energy and increase the reliability of its energy grid," Sunrun co-founder and CEO Lynn Jurich said in a statement. "Sunrun's BrightBox fits the bill for Long Island residents who want to be prepared with a reliable energy solution when the unexpected occurs. It can even become a distributed resource for New York utilities to draw on to keep the entire grid more reliable."

The company said it installed the system at various fire stations in Puerto Rico during November, helping to provide emergency relief around the clock.

Sunrun's BrightBox technology is already being used by customers in Hawaii and California, the company said in a news release.