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%.

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.

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.

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.

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.

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.

The electronics giant is building two PV plants with a combined generation capacity of 58 MW owned by U.S. module manufacturer First Solar. Toshiba is also extending its hydrogen research project in Fukushima for another two years.

The country’s regulator has approved a government plan to tender for 11.81 GW of power generation capacity on top of the 2 GW tender opened last month.

Businesses, supported by the government, will join forces to strengthen their industry and contribute to the European Green Deal through made-in-EU products.

Researchers in India have developed a 5 kW/25 kWh vanadium redox flow battery with an energy density of 30 watt-hours to 40 watt-hours per liter.