Reducing PV module temperature with leaf vein–inspired fins
Researchers in Iraq have developed biomimetic leaf vein–inspired fins for photovoltaic panels, with reticulate (RET) venation reducing panel temperature by 33.6 C and boosting efficiency by 18% using passive cooling. Their study combines 3D CFD simulations and electrical evaluations to optimize fin geometry, offering a sustainable alternative to conventional cooling methods.
How to design a UL-certified balcony solar kit in the United States
UL Solutions has published new technical guidance and a proposed certification pathway for plug-in balcony solar systems, outlining safety risks and design requirements as several US states move to legalise the technology.
UNSW researchers identify new damp heat-induced failure mechanism in TOPCon solar modules
UNSW researchers identified a new damp-heat degradation mechanism in TOPCon modules with laser-fired contacts, driven primarily by rear-side recombination and open-circuit voltage loss rather than series-resistance increase. The study highlights that magnesium in white EVA encapsulants accelerates degradation, guiding improved encapsulant and backsheet selection for more reliable modules in humid environments.
China added 66.43 GW of new-type energy storage in 2025
CNESA says China’s non-pumped storage technologies hit 144.7 GW in 2025, with 66.43 GW added.
Uncertainty looms as U.S. solar PPA prices climb for second straight quarter
A report from LevelTen Energy finds solar PPA prices in North America rose 3.2% in Q4 2025, marking a nearly 9% year-over-year increase as developers and buyers navigate a complex “post-OBBBA” regulatory environment.
The Hydrogen Stream: Repsol, Sunfire advance 200 MW of green H2 in Spain
Repsol and Sunfire are advancing 200 MW of renewable hydrogen projects in Spain, while new collaborations and funding across Europe and India aim to accelerate electrolyzer development and hydrogen infrastructure.
Octopus Energy to set up joint venture to trade renewables in China
UK-based Octopus Energy has agreed to set up a joint venture in China focused on spot power trading, in a bid to scale renewable electricity volumes as market reforms and demand growth accelerate.
DKEM seeks $57.5 million in twin patent suits against Chinese PV rivals
Wuxi DK Electronic Materials is pursuing two patent infringement cases against domestic competitors, seeking injunctions, equipment destruction, and combined damages of CNY 400 million ($57.5 million).
TheStorage launches its first industrial-scale sand-based heat storage system
The Finnish start-up says its sand battery technology is scalable from 20 to 500 MWh with charging power from 1 to 20 MW, depending on industrial needs.
Agrivoltaics can help lettuce survive extreme heat
Scientists have grown organic romaine lettuce under 13 different types of PV modules, in an unusual hot Canadian summer. Their analysis showed lettuce yields increased by over 400% compared to unshaded control plants.
