Western Europe

A new type of carbon fibre and electrolyte matrix stunned scientists when they tested its properties. Their ‘structural’ battery could be used in electric vehicles and could even address the weight problems that bedevil devices planned for electric-powered flight.

The recharging station was designed by French automation group Sirea. It is powered by a solar carport and a small electrolyser.

Dutch research institute TNO has released a series of guidelines to reduce fire hazards in rooftop PV installations. The study follows a series of fire accidents that occurred between 2018 and 2020 in the Netherlands, for which the main causes were identified.

A global ranking of large scale solar project capacities indicates prominent roles for a resurgent Spain, behind the usual top three of China, the U.S. and India, with Australia and the Netherlands also on the rise. There were disappointing returns, though, for the U.K., Italy and Canada.

Scientists in the Netherlands conducted a feasibility study for adding floating solar to a planned 752 MW offshore wind installation in the North Sea. The study finds that the two could realistically share a single connection to an onshore grid, with minimal curtailment as well as technical and economic benefits for both technologies.

A British-Egyptian research group has tested the use of hydrogels beads for PV module cooling. The micro-sized particles were saturated with aluminium oxide (Al2O3) water-based nanofluids and placed below the simulated PV panels. The experiment showed, according to the scientists, that the hydrogels beads were able to significantly reduce the temperature by between 17.9 and 16.3 degrees Celsius.

Lithium-ion batteries can not only improve self-consumption in commercial PV systems but are also able to efficiently perform peak shaving and price arbitrage, according to an international research group which has proposed a new strategy to calculate the best system configuration in terms of costs and revenue. The scientists specified, however, that the novel strategy may become effective only if storage system prices will drop under $250/kWh.

Not all rooftops can bear the weight of glass PV modules. Some others have curves and shapes ill-suited to uniform, bulky panels. Flexible modules have long been advanced as the solution here, however the keys to unlocking this potential have proven elusive.

German energy company Steag is helping Thyssenkrupp decarbonise its steel production site in Duisburg-Walsum. Green hydrogen generation is expected to be powered by a mix of wind and solar power.

Scientists in the Netherlands have identified five different profiles of homeowners that have installed or could install rooftop PV systems. According to their findings, substantial differences characterise the five segmentation groups. The research is intended to help policymakers and solar companies to better promote PV technology among potential new adopters.