Vertical rooftop PV debuts in the U.S.
Norwegian vertical solar specialist Over Easy Solar has installed its first rooftop vertical solar installation in the U.S. market. The 100 kW system, combined with a green roof in New York, is expected to deliver around 120,000 kWh annually depending on factors including albedo, azimuth and local shadowing.
Which power markets are most impacted by the Middle East conflict?
Wood Mackenzie’s latest analysis explores how 13 of the world’s leading power markets are impacted by the current fuel crisis, with those most reliant on fuel imports facing the greatest risk exposure. The consultancy says the average cost of generation is set to increase by $2.30/MWh across these 13 markets if a de-escalation of the conflict enables fuel price moderation in the latter half of 2026, increasing to an average of around $8.30/MWh if current elevated price levels persist through the year.
Titanium emerges as a vanadium alternative for redox flow batteries
A Japanese–Chinese team developed a titanium molten salt redox-flow battery using abundant titanium ions and molten salt electrolytes to enable high-voltage, fast, and stable grid-scale energy storage. The system demonstrates high efficiency of over 97%, strong cycling stability, and improved cost and scalability compared to vanadium-based batteries, with further optimization underway.
Solar keeps slimming down while power rises
An international study found that the specific power of commercial silicon solar modules increased from 8.5 W/kg in the early 2000s to 23.6 W/kg today, driven by advances in module design, bifaciality, and temperature management. The researchers highlighted that glass and framing dominate module weight, and considering operating conditions like nominal operating cell temperature and rear-side illumination is essential for accurate PV system design.
Inpow unveils 587 Ah semi-solid-state storage cell
Inpow Battery has launched a 587 Ah semi-solid-state storage cell with safety-focused design features, while outlining plans for a 6.5 GWh production line.
AI-enabled hacks expose remote shutdown risk in microinverters
IT security firm Jakkaru has identified a vulnerability in microinverters from AP Systems that could enable a “kill switch” scenario, potentially shutting down tens of thousands of inverters simultaneously and disrupting grid operations.
Aroma Solar launches 1.2 GW module factory in India
Aroma Solar has opened a 1.2 GW tunnel oxide passivated contact (TOPCon) module facility in in the northern Indian state of Haryana, using automated production and AI-based quality control.
Cornex unveils new 165 Ah sodium-ion prismatic cell for stationary energy storage
A new sodium-ion cell for ESS may further improve competitiveness in large-scale systems against the weight of the lithium-ion battery sector.
Austrian manufacturer offers modular air-to-water propane heat pumps
Lambda Wärmepumpen GmbH said its Eureka heat pump series uses a patented fluid mechanics system that reportedly improves heat transfer by four to six times while maintaining a temperature difference of just 3 K between the air and the refrigerant. Its seasonal coefficient of performance ranges from 4.50 to 6.10.
PV-driven hydraulic hydro storage may hit $0.022/kWh LCOE in the U.S.
An international study has demonstrated that utility-scale solar PV paired with hydraulic hydro storage (HHS) could reach an LCOE as low as $0.022/kWh in select U.S. regions. The system could provide GWh-scale, cost-competitive, and highly reliable long-duration storage, capable of powering large commercial districts with minimal environmental impact.
