Europe

An international research group has conducted a literature review of capital expenditure-driven levelized cost of electricity optimization strategies for utility-scale PV systems. Tracking optimization, system voltage escalation, and advanced system design are identified as the most promising cost reduction areas. “The next wave of PV research must be LCOE-native, system-level, and deployment-validated,” a member of the research group said.

Germany added an estimated 6.57 GWh of stationary battery storage capacity in 2025, an increase of about 8% year on year, lifting total installed capacity to roughly 24 GWh. Growth was driven by industrial and large-scale systems, even as home storage installations declined alongside weaker rooftop solar demand.

The use of a novel roll-to-roll process and optimization technology resulted in polymer foils for use in colored PV modules in a potentially wide range of colors with low iridescence and low levels of efficiency loss.

This article of the Women in Solar+ Europe series brings together experts and leaders featured throughout 2025 to reflect on why leadership must be redefined for today’s realities. Their insights highlight inclusion not as an add-on, but as the very heart of effective, future-ready leadership.

RWE has started commissioning a 100 MW electrolyzer in Germany to supply renewable hydrogen under long-term contracts, while Hydrogen Utopia International and Hydrogen Systems are advancing plans to build waste-to-hydrogen plants in Saudi Arabia.

By 2050, sodium-ion batteries with fast learning rates could deliver storage at 11–14 €/MWh – cheaper than lithium-ion at 16–22 €/MWh – while also offering higher energy-to-power ratios and high cycle durability, a new research finds.

A Husqvarna researcher developed a fast, interpretable PV hotspot-detection method using IR thermography and Lab* color-space features instead of heavy neural networks, achieving up to 95.2% accuracy with shallow classifiers. The lightweight system works in real time on drones or edge devices and could save 17,620 kWh and 8.9 tons of CO₂ annually by improving fault detection in solar panels.

Aurora Energy Research’s latest report says Europe requires €600 billion ($700.2 billion) of investment by the end of the decade, increasing to €1.5 trillion by the middle of the century, to support the expansion of the continent’s renewable energy.

Spain-based Izpitek has developed an 86 kW building-integrated photovoltaics (BIPV) installation for tunnel entrances and exits that supplies power for lighting, demonstrating how solar energy can be adapted to complex architectural environments.