Simplified modeling for partially shaded PV systems
A proposed two-diode model is based exclusively on the standard test condition parameters of solar modules and their irradiance levels. The analytical tool reportedly enables PV system operators to estimate the I-V curves of a shaded array quickly and accurately.
Probabilistic model indicates PV module warranty reliability
U.S.-Spanish researchers have proposed a new way to assess the reliability of PV modules and their warranties. It is impossible to fulfill a 25-year warranty if the threshold of returned modules exceeds 5% and the annual degradation rate is over 0.73%.
Australian-designed storage system spells grid independence
“We’ve put together the best components to make a unique Australian-designed solution that is compliant to the new battery standards,” says EVO Power Managing Director Jamie Allen. Offgrid or upmarket – just add solar.
Power-to-hydrogen for multi-energy systems
Scientists in Switzerland say power-to-hydrogen is particularly promising for coupling electricity and heating and offsetting seasonal variation in renewables generation in sector-coupled energy networks. Their analysis indicated the technology may be especially useful in areas with a high ratio of seasonal thermal-to-electric demand.
Nextracker inks 1 GW supply deal and claims up to 12% bifacial yield gain
The 1 GW fifth phase of the Mohammed bin Rashid Al Maktoum Solar Park in Dubai will feature NX Horizon trackers with the deal announced after the manufacturer published new bifacial yield gain claims.
New molecular precursor for kesterite solar cells
Scientists in India have developed a new molecular precursor for applications in kesterite solar cells. They used the precursor to build a superstrate type solar cell with an efficiency that is purportedly among the highest ever recorded. They relied on a low-temperature process to manufacture the device.
Solar-powered unmanned airplane with lithium-sulfur battery
The Korea Aerospace Research Institute has conducted a battery-powered test flight of solar-powered unmanned aerial vehicle EAV-3. The aircraft is powered by solar cells on its wings and body and an LG Chem lithium-sulfur battery.
Solaria brings its patent claims against Canadian Solar to ITC, adding a third patent
Californian solar module manufacturer Solaria Corporation has asked the U.S. International Trade Commission to issue an exclusion order to prevent the sale in the United States of Canadian Solar shingled solar modules it claims infringe its patents.
Thin-film agrivoltaic solar tubes
German tech company Tube Solar AG has secured €10.8 million to develop its cylindrical agrivoltaic modules. The lightweight devices could also be used on roofs until now considered unsuitable for PV.
New world record for large-area organic PV module efficiency
Scientists in Germany have achieved 12.6% efficiency with a 26 sq cm organic panel and 11.7% for a 204 sq cm device. The feats were achieved with a new module layout and a slower, high-resolution, short-pulse laser structuring process.
