BESS developer and operator Plus Power has brought a 185MW/565MWh project online in Hawaii, US, which it claimed is the “most advanced grid-scale BESS in the world”.

The Puerto Rico Energy Bureau (PREB) has approved the deployment of 430MW of 4-hour duration BESS technology, according to reports.

Wärtsilä has been contracted to deliver a hybrid solution combining battery energy storage with liquid petroleum gas (LPG) and light fuel oil (LFO) engines on the US Virgin Islands.

Tenders for solar-plus-storage projects on French island territories including Corsica, Guadeloupe and Martinique have resulted in winning bids often 40% lower than the victors of previous reverse auctions.

Puerto Rico’s financially troubled electric power authority PREPA will install a large-scale battery park at a 10MW PV farm, to help integrate the farm’s output and other renewables.

Hawaii has been namechecked as a ‘test bed’ for how grids can migrate to higher levels of PV penetration so often it has become something of a cliché. Stem’s VP for Hawaii operations, Tad Glauthier tells ESN about the projects that are going on, which lessons might be transferable to other regions – and which might not.

A solar farm connected to a huge battery will be built on the Hawaiian island of Kauai to use solar in the evenings to meet peak demand, under a 20-year contract between SolarCity and an electric utility co-operative.

Last week the US Energy Storage Association (ESA) hosted its annual conference and exhibition in Dallas, Texas. Andy Colthorpe spoke to Jim McDowall of battery and energy storage system provider Saft, which won the show’s Outstanding Acheivement Award.

The remote Faroe Islands in northern Europe are to benefit from a major energy storage system, which as well as helping integrate renewable energy sources, will also operate on a commercial basis providing grid balancing and other ancillary services.