BESS
Operational issues hit returns in one in five battery storage projects, report finds
A recent report from battery intelligence firm Accure reveals that while most battery energy storage systems (BESS) operate reliably, nearly 19% of projects experience reduced returns due to technical issues and unplanned downtime. From ESS News BESS are fast becoming central to the global energy transition, but the sector still faces significant operational and financial […]
Startup unveils zinc-polyiodide redox flow battery with energy density of 320 Wh/L
BESSt announced that its new redox flow battery technology delivers 20 times the energy density of conventional vanadium flow storage systems. The battery is based on a zinc–polyiodide redox flow chemistry developed by the Pacific Northwest National Laboratory. From ESS News US-based startup BESSt has launched a new redox flow battery technology that reportedly achieves 20 […]
U.S. grid-scale storage leaps 63%, residential storage 132%
The utility-scale energy storage sector added 4.9 GW in Q2, representing 63% year-on-year growth, while residential storage increased by 608 MW, said a report from American Clean Power Association and Wood Mackenzie. The United States had a record quarter for battery energy storage deployment in Q2 2025, adding 5.6 GW of installations, said a report […]
HiTHIUM targets AI data center market with energy storage solutions
The company’s ∞Power 6.25MWh 8h and ∞Power N2.28MWh 1h BESS solutions help AI data centers in the US address both long-duration and ultra-fast short-duration energy storage needs, according to Neil Bradshaw, HiTHIUM Application Engineering Director. At RE+ 2025, HiTHIUM showcased its ∞Power 6.25MWh BESS solution, which the company will be producing at its capacity of […]
NREL researchers address safety implications of next-generation battery technologies
Report says new evaluation methods, including AI, will help make future batteries safer. If lithium-ion batteries were once viewed as an expensive energy storage solution with tenuous supply chains, mass production has made them both affordable and readily available for a wide variety of applications. Consumer electronics, electric vehicles and, importantly, battery-based energy storage systems […]
Deploy grid-forming batteries now to avoid costly infrastructure later, says ESIG
Large-scale batteries with grid-forming software can sustain grid reliability as renewables replace synchronous fossil generators, says an ESIG report. The report focuses on test procedures to validate grid-forming capabilities. In most large power systems, transmission grid operators are “still able to maintain grid reliability using synchronous generators present in their systems at this time,” notes a […]
Flatiron Energy secures $540 million for largest battery project in Massachusetts
The company is expected to bring a 200 MW / 800 MWh battery to commercial operations by late 2026. Flatiron Energy secured approximately $540 million in financing commitments for the Taft battery project in Uxbridge, Mass. The standalone battery project will be the largest in Massachusetts planned to be 200 MW, 800 MWh. Site preparations […]
New wave of funding powers U.S. battery tech and projects
XL Batteries has secured backing to commercialize flow battery systems which use an organic electrolyte, rather than vanadium, and two utility-scale developers have landed extensive credit lines. The announcement of $7.5 million of funding for a Massachusetts company to scale its organic flow battery technology capped a 24-hour period this week which saw almost $900 […]
Telemetry could impact ERCOT’s rollout of real-time co-optimization with batteries
Projects that fail to upgrade their data infrastructure risk underperformance, delays, and lost trust with the network operator. From ESS News ERCOT is set to roll out its real-time co-optimization with batteries program (RTC+B), which could open up new value streams for batteries. But the rollout hinges on something deceptively simple: telemetry. “The real risk […]