photovoltaics

Spain and Portugal recorded a surge in negative electricity prices in Q1, driven by strong solar generation and relatively low demand on the Iberian Peninsula. Further records are likely in 2026 as solar capacity grows, with more frequent price volatility expected across Europe.

Researchers in Italy analyzed air-to-water heat pump performance in Alpine regions, focusing on how start-up and defrost cycles affect efficiency under current and future climate conditions. Their simulations show that while warmer temperatures slightly reduce defrosting losses and modestly improve efficiency, start-up cycling losses remain significant and continue to limit overall performance gains.

Research from Germany’s FernUniversität Hagen finds the solar rebound effect, caused by households increasing their total electricity consumption after installing a solar system, is currently a blind stop in Europe’s energy system planning and abatement scenarios.

Cloud and SaaS platforms are now central to PV plant operations, but their centralization creates a high-impact cybersecurity risk where a single compromise can expose or disrupt entire fleets of installations. Attackers exploit weaknesses like stolen credentials, insecure APIs, multi-tenant flaws, and platform vulnerabilities, making strong identity controls, secure APIs, and continuous monitoring essential defenses.

The new inverter is designed around standardized 5 MW and 5.5 MW PV sub-arrays with the aim to reduce balance-of-system costs. It features a maximum efficiency of 99.0% and a high-voltage architecture of up to 1,600 Vdc and 1,000 Vac.

The Chinese manufacturer said its lightweight Light Diamond TOPCon module delivers 560 W at 24.94% efficiency.

The country’s seventh green energy auction is set to procure rooftop, ground-mounted and floating solar projects across the Philippines, with increased allocation in Mindanao. The Department of Energy plans to release the auction’s terms of reference during the second quarter of this year.

The U.S. Patent and Trademark Office has invalidated all claims of two TOPCon solar cell patents previously asserted by Trina Solar against Canadian Solar subsidiaries.

The country reached a cumulative installed PV capacity of 44.9 GW at the end of March, according to recent figures from Italian PV association Italia Solar.

Supply chain attacks compromise PV systems by targeting trusted vendors, software, or hardware components, allowing attackers to infiltrate systems indirectly through legitimate channels. These attacks can disrupt operations, introduce hidden vulnerabilities, and impact multiple assets at once, making vendor security and system validation critical for resilience.