SRP has signed deals for two large-scale battery energy storage systems (BESS) that bring the Arizona utility to 800MW of energy storage.

As society moves away from centralised fossil fuel generators to increasing shares of distributed renewable energy resources, the idea that customers’ homes could become host to virtual power plants (VPPs), joining the dots between electricity supply and demand across the grid, has gradually gathered traction. Andy Colthorpe speaks with Suleman Khan CEO of Swell Energy, which has raised nearly half a billion dollars in financing for solar-plus-storage VPPs in 14,000 homes across California, New York and Hawaii.

Behind-the-meter energy storage controls based around Nissan’s EV batteries and a ‘software-defined power plant’, both designed to incorporate a range of energy resources including solar, have been launched in the past week.