Experts at the ongoing Energy Storage Summit 2026 have cautioned against treating co-located storage as a “silver bullet” to prop up commercially underperforming solar assets.

D. E. Shaw Renewable Investments (DESRI) has signed a preferred equity investment in IPP Linea Energy’s 235MW/470MWh Duffy battery energy storage system (BESS) in Matagorda County, Texas.

According to the US trade association group, the Solar Energy Industries Association (SEIA), US battery energy storage system (BESS) deployments are set to increase to 70GWh in 2026.

Lightsource bp has sold a 1GW operational solar PV portfolio, with options to build 800MW of co-located battery storage, in Australia.

Fotowatio Renewable Ventures has unveiled plans for a 1.2GW/5GWh portfolio of battery energy storage system (BESS) projects in Spain.

A flurry of BESS project news from big-name players in Western Europe in the run-up to the Energy Storage Summit next week, with Neoen, Statkraft, Zenobē and Infranode moving projects forward in Germany, Ireland, the UK and Denmark. Highlights include a 15-year toll between Drax and Zenobē, and multiple 4-hour duration systems.

The US Treasury’s interim FEOC guidance has outlined “Material Assistance” provisions, which rely heavily on existing safe harbour calculations.

Two BESS projects in Yuma County, Arizona, one from BrightNight, and one from Leeward Renewable Energy, have reached significant milestones.

Energy storage developer NineDot Energy closes US$431 million in construction financing for New York BESS projects. Meanwhile, US energy efficiency and renewables company Ameresco completes multiple tax credit transfer and financing transactions for solar PV and BESS.

Software-focused battery energy storage system (BESS) integrator FlexGen has put two utility-scale BESS projects in operation in Wisconsin and Iowa, US, totalling 700MWh.