Technology and R&D

Too big? Too small? Just right? Many factors need to be considered when deciding how large or small to make your rooftop solar array.

Developed by Solum Photovoltaic Innovation, the recharging station is being powered by a 7.6 square meter, walkable photovoltaic pavement coupled to a 2-4 kWh storage system. This configuration is enough to repower 12 scooters per day.

The research group led by Professor Martin Green has published Version 58 of the Solar cell efficiency tables. He spoke with pv magazine about the criteria with which these tables are compiled and the importance of result certification by independent third parties.

Developed by U.S. scientists, the Hydrogen Energy Storage Evaluation Tool (HESET) can assess the economic and technical characteristics of individual system components and the modeling of each hydrogen pathway. Furthermore, it can help understand how hydrogen storage can be used for various grid and end-user services.

India’s energy transition will not succeed without rooftop PV and roll-out is hindered not only by a lack of household finance, but by the fact many of the nation’s flat roofs are enjoyed by residents. Germany’s international development agency has proposed a solution.

Australia’s Commodore Independent Energy Systems has evaluated how much customers save by using solar water pumps compared to diesel or mains-connected pumps.

Urban Electric Power has been accepted into EPRI’s Incubatenergy Labs program to prove the value of its new battery tech to some of the top utilities in the United States.

Scientists in the U.S. developed a new cathode design for lithium-ion batteries that they say could open up a range of different materials for further research. The group has high hopes that the discovery can quickly be brought to scale, easing some of the growing concerns around supply chains for battery materials.

The use of ultrasonic sound waves has been applied to battery recovery. Researchers from the ReLiB project at the U.K.’s Faraday Institution say the process has already proven to be 100 times faster than conventional approaches. It is also much more sustainable and less energy intensive.

Innovations in green hydrogen are developing at a fast pace. This presents new questions like where are the markets, how fast will they come, how can we ensure hydrogen is green and cost-efficient, and what needs to be considered by project developers when planning related business models? And, at the end, will there be an opportunity for market players coming from the solar sphere? Watch our final Roundtable Europe video to find out.