A trio of major players in the battery storage system integration space have unveiled recent Large-Scale Fire Testing (LSFT) results.

Power company AES Corporation has completed construction of the 1,000MW Bellefield 1 project in Kern County, California. The project includes 500MW of solar and 500MW/2,000MWh of battery storage.

Prospect14 became the latest US renewable energy developer to have a hybrid storage project application scrutinised and ultimately rejected.

In Texas, two companies, Energy Vault, recognised for its gravity energy storage technology, and Agilitas, known for smaller-scale projects in the Northeastern US, have put utility-scale energy storage projects in the state into operation.

According to specialist renewable energy insurance company kWh Analytics’ 2025 Solar Risk Assessment, concern around battery energy storage system (BESS) safety has risen following recent fire incidents.

A fire protection and emergency services provider in California, US, has introduced a mandatory risk mitigation payment system for solar PV and energy storage developers.

US battery storage system integrator Powin has filed for Chapter 11 bankruptcy at a court in New Jersey.

Inverter and BESS firm Sungrow has launched its latest grid-scale energy storage product offering beyond the 20-foot form factor, following in the footsteps of other providers.

Texas, US, Governor Greg Abbott signed a law placing mandates on decommissioning battery energy storage system (BESS) facilities at the end of their lifecycle.

Details on the wind-down of US-based BESS firm American Energy Storage Innovations (AESI) have come out, while battery recycler Li-Cycle has filed for Chapter 15 bankruptcy and been ordered to cease stock market trading.