Sodium-ion battery storage for ultra-low temperatures
U.S. researchers have developed a sodium-ion pouch cell that operates reliably at temperatures as low as –100 C. The battery was tested with simulated and real renewable energy sources, including wind and solar, and maintained stable performance in both laboratory and field conditions.
A late but decisive move to ESS: LONGi takes majority control of PotisEdge
China’s largest solar manufacturer seeks to escape shrinking margins by securing 62% voting control of a fast-rising storage integrator.
Reducing PV module temperature with twisted tape
Researchers in Iran have investigated how twisted tape in water-cooled channels can enhance heat transfer in solar modules. They have used a computer simulation to analyze the new approach with different parameters and have found the panels’ ectrical efficiency increased by up to 11.84%.
In Puerto Rico, residential solar and storage growth outpaces utility-scale developments
Puerto Rico has reached 1.3 GW of residential solar and 185,000 residential batteries, with Wood Mackenzie expecting three more GWh of residential storage by 2029. Utility-scale solar and storage projects are gearing up, as described by an attorney with McConnell Valdés.
Nanostructured antireflective coating for gallium arsenide solar cells
A Spanish research team demonstrated a broadband antireflective coating for gallium arsenide solar cells. Based on thermally oxidized gallium nanoparticles, the nanostructured coating reduced reflectance by 30% across the solar spectrum, and increased solar cell performance by 10%.
S-5! launches new clamp for solar carports
The US mounting system provider said its new product is designed to fit both Cee and Zee purlin-framed structures. It features a bottom-oriented setscrew.
Spain allocates €2 billion to expand clean energy and industry programs
Spain’s Ministry for Ecological Transition says a new €2 billion ($2.3 billion) funding package is designed to accelerate industrial capacity, expand renewable deployment, and boost the country’s long-term energy resilience.
‘It’s not a matter of sodium versus lithium, we need both’
A US research team has developed all-solid-state sodium batteries that retain performance down to subzero temperatures. The systems utilize a special chloride-based solid-electrolyte-coated cathode.
Rinnai unveils air-to-water heat pumps for commercial, industrial use
The systems use propane as the refrigerant and range in capacity from 40 kW to 410 kW. Their coefficient of performance reaches up to 3.88.
Open-access, modular monitoring platform for multi-year outdoor PV testing
A team of researchers in Canada has developed the Jericho Open Resistive Data Logger—an open-access photovoltaic (PV) monitoring platform that integrates data acquisition and processing hardware, a software framework, and a comprehensive sensor array. Designed primarily for agrivoltaic applications, the system has a total estimated cost of around $2,000.
