Fully autonomous robot for solar O&M
OnSight Technology has developed a tele-operated vehicle to clean solar arrays. It is equipped with a radiometric thermal imaging camera and an optical zoom camera backed by artificial intelligence. It has a range of 12 hours and a speed of 1.6 km per hour.
Thermally integrated PV-electrolyzer with 9.1% solar-to-hydrogen efficiency
A Swedish research group has developed a device combining CIGS thin-film solar modules and an alkaline electrolyzer based on a trimetallic cathodic catalyst made of nickel, molybdenum, and vanadium (NiMoV) and an anode made of nickel oxide (NiO). The electrolyzer achieved an average solar-to-hydrogen (STH) efficiency of 8.5% for stable operations during 100 hours.
Green Cell unveils 5kWh residential battery
Called GC PowerNest, the battery has a storage capacity of 5kWh and a voltage of 51.2V. It is scalable in an eight-stack configuration, thus reaching a capacity of up to 40kWh.
Cybersecurity for distributed energy, inverter-based resources
UL and the US National Renewable Energy Laboratory have released a report on cybersecurity certification recommendations and are actively developing new requirements to create cybersecurity certification standards.
Novel power electronic converter for BIPV
Conceived by researchers in Estonia, the device is claimed to be compatible with both crystalline silicon and thin-film BIPV panels and to manage, easily, different voltage levels. It can be applied either in solar facades or BIPV rooftop arrays.
Submersing modular raft for floating photovoltaics
Developed by a Dutch consortium, the Hide and Shine Floating Solar (HAS FPV) technology is claimed to be extremely resistant to storms and harsh weather conditions. The modules can be submerged totally or partially and, in case of a severe storm, they can be submerged up to two meters below the surface.
Solar parks could help to increase rainfall in arid regions
New modeling suggests that the reduction in albedo caused by large-scale solar plants could double rainfall in the Red Sea coastal plain of Saudi Arabia.
Subsidies, interest rates, carbon prices could disrupt renewables expansion
German and Swiss researchers have published a new study that questions the idea of a continual decrease in renewable energy costs, given the reality of rising interest rates and higher carbon prices. They outlined a scenario in which interest rates could rise by up to 5% and public incentives for renewables would be gradually phased out. This could result in a loss of 535GW of new renewables capacity, compared to a scenario in which interest rates remain at current levels.
Psyche asteroid mission will be PV-powered, says NASA
NASA has said that it will explore a large, metal-rich asteroid with a remotely operated craft powered by two cross-shaped solar arrays.
Hanwha Q Cells, Helmholtz-Zentrum Berlin claim 28.7% efficiency for 2T perovskite-silicon tandem solar cell
The Korean manufacturer and the German research center were able to improve the performance of their jointly developed tandem solar cell by almost one percentage point.
