The Governing Board of the Puerto Rico Electric Power Authority (PREPA) has approved renewables developer Polaris Renewable Energy’s battery energy storage system (BESS) standard offer (SO1) agreement.

Luma Energy, the US-Canadian joint venture (JV) responsible for the Puerto Rican electricity distribution network will build nine energy interconnection points with Linxon US LLC and their partner AtkinsRéalis Caribe, to integrate renewable energy projects.

The US Department of Energy (DOE) is investing US$28.7 million into grid resilience projects for Florida.

In its home territory of Germany, energy storage provider Sonnen is making a play to replace utilities, but its business models in the US will instead emphasise cooperation with existing energy suppliers.