Australian scientists unveil method to produce hydrogen straight from ocean
University of Adelaide researchers and their international partners have successfully used seawater with no pre-treatment to produce green hydrogen. They did this by introducing an acid layer over the catalysts in situ.
Second-life batteries might beat new ones on solar LCOE in remote locations
UK scientists have discovered that second-life batteries could provide a lower levelized cost of electricity (LCOE) than conventional batteries in school buildings equipped with PV in East African schools. They said the cheapest system configuration uses either 7.5 kW or 10 kW of solar with 20 kWh of storage.
Retired coal sites to host multi-day iron-air batteries
Form Energy will install two 10 MW / 1,000 MWh batteries on the sites of Xcel Energy’s former coal-fired plants.
Eggplants grow 50% more under solar panels
French specialist Sun’Agri unveiled the agronomic results on a crop of eggplant grown in a greenhouse commissioned in the Lot-et-Garonne in September, 2020.
US startup unveils saltwater flow battery for large-scale storage
US-based Salgenx has developed a scalable redox flow battery with two separate tanks of electrolytes, one of which is saltwater. Unlike other flow batteries, the new device is membrane-free, promising big gains at the levelized cost of storage level.
US startup begins producing 40%-efficient thermophotovoltaic cells
Antora Energy says its new 2 MW factory will make thermophotovoltaic cells for thermal storage applications. The cells are based on III-V semiconductors and reportedly have a heat-to-electricity conversion efficiency of more than 40%.
Ecozen raises $25 million, led by Nuveen
The Pune-headquartered solar pump controller and solar cold storage solutions provider will use the funds to expand beyond India and tap business opportunities beyond agriculture.
New method to measure energy yield of bifacial PV systems
Canadian scientists have developed a new way to measure the energy yield of bifacial PV systems. They said they considered the spectral albedo of ground cover like snow and sand to predict energy gains of up to 2%, in comparison with the International Electrotechnical Commission (IEC) standard.
Storing renewables via regenerative braking in underground mines
Scientists in Austria have developed a long-term energy storage system that uses regenerative braking to adjust the descent speed of sand in mine shafts and generate electricity.
Assessing vibrations in solar modules due to robot cleaning
Qatari researchers have looked at the degree to which cleaning robots could threaten the physical integrity of solar panels. They found that cleaning machines have a very minimal impact and that modules of similar sizes tend to exhibit roughly the same amount of vibration.
