Philippines’ rooftop solar capacity estimated at over 1.8 GW
A new solar mapping tool in the Philippines shows that the country’s rooftop solar capacity exceeds 1.8 GW. Its creators say the platform can be used to track unregistered solar rooftop capacity.
New technique to geo-label PV modules in utility-scale solar parks
Scientists in Morocco have developed a method that uses the metadata of PV plants’ infrared images to label them geographically. The automatic database can then be used in deep learning models and significantly reduce the time required for data labeling.
Copper doping boosts manganese cathode stability in sodium-ion batteries
Researchers at the Tokyo University of Science have shown that using copper can eliminate defects in sodium manganese oxide battery types, boosting battery cycle life.
Fraunhofer ISE achieves 40% efficiency for indoor III-V solar cell
The PV device is based on a indium gallium phosphide absorber with an energy bandgap of 1.9 eV. It is intended for use in autonomous Internet of Things (IoT) applications that operate indoors without an external wired power supply.
BBDF 2025: Warranties, safety key to achieving battery quality
Tech specialists at the “Technological advancement and risk mitigation” panel identified safety and warranties as the key pillars of quality in the battery storage sector. Speakers discussed how these factors shape component selection and long-term project viability.
Wireless EV charging based on PV, three-port DC–DC converter
Scientists have developed a wireless charging system for electric vehicles, with a three-port DC–DC converter at its core. They have simulated the system and tested a prototype in their lab and have found it achieved an improved efficiency of 88%.
What’s behind the aging mechanism of sodium-ion batteries
Researchers in China have used electrochemical impedance spectroscopy to analyze the state of health of sodium-ion batteries. Extracting four features from the measurements, they were able to create a machine learning model for a temperature-resistant state of health estimation method.
ClearVue BIPV solution achieves 2.6-year payback in Hong Kong trial
ClearVue Technologies says its solar facade solutions, that combine the company’s solar glazing units into a fully integrated energy generating building envelope, have achieved a payback period of less than three years in a Hong Kong government trial.
Chinese scientists build copper indium sulfide solar cell with 10.44% efficiency
Copper indium sulfide (CuInS2) are still far from reaching commercial maturity but new titanium dioxide nanorod arrays can reportedly improve their light trapping, charge separation, and carrier collection.
Precise backside irradiance modeling for bifacial PV is often unnecessary
A European research group has developed a new “empirical” method for measuring the backside irradiance of bifacial PV system. The proposed approach was tested across several European locations and it was found to enable annual performance calculations with a fixed backside irradiance share value.
