North America



Interview: Duke Energy storage head Zak Kuznar

BY RICHARD HEAP: It has been a busy summer of storage for Duke Energy. Last month, the utility completed a 9MW lithium-ion battery system in Asheville in North Carolina (pictured), the state’s largest. It also…



Arizona battery fire sparks blazing row

BY RICHARD HEAP: Arizona is known for getting excessively hot – and the heated debate about a 2019 battery fire in the US state is no exception. What happened? In April 2019, a fire at a…


Hawaii pushes on with 3GWh storage drive

BY RICHARD HEAP: Hawaiian Electric has thrown its support behind a solar and storage revolution. On Monday, the US utility confirmed it has awarded support for 16 projects – a mix of standalone storage and…



Are storage developments now investment-grade?

BY RICHARD HEAP: Are energy storage developments now investment-grade? It’s a question we’ve asked many times over the years, but now it looks like they just might be. US battery project developer esVolta last month…