Western Europe

The French authorities have allocated 157MW of solar power in the country’s latest procurement exercise, with an average final price of €0.08312/kWh.

Mario Draghi’s administration has replaced market-driven electricity prices for the rest of the year and replaced them with tariffs based on historical averages. With solar plant operators among those affected, the European trade body for PV is not amused.

The Italian inverter maker claims to have been impacted by the post-pandemic supply constraints. The proceedings are being managed in full business continuity without any interruption of operational activity, said the legal firm hired by Fimer to implement a debt restructuring process.

In 2002, the Fraunhofer ISE patented the HERIC circuit for highly efficient inverters. Since then, the institute says, it has recorded out-of-court settlements in seven patent infringement lawsuits against companies from China, Taiwan and Germany.

Spain’s National Confederation of Installers has released a technical paper about the advantages of coupling rooftop PV with heat pumps. It says that the payback time for a solar-powered heat pump can range between two and five years.

Perovskite-silicon tandem cells offer one of the surest pathways to much higher solar efficiencies, one that has moved close to commercialization in the past few years. Much of the work getting to this stage has naturally focused on developing a viable perovskite top cell. Optimizations to the silicon layer underneath, however, will also be important to the overall device function and efficiency. Scientists in Germany examined five different silicon cell concepts similar to those in mass production today, finding that with a few optimizations these could reach efficiencies up to 30.4%.

The Spanish energy company is building a huge hydropower complex across three water reservoirs in northern Portugal. The project will rely on 880 MW of pumped-hydro storage and is expected to become fully operational in 2024.

Seaborg Technologies, a Danish manufacturer of molten salt nuclear reactors, has turned a technology that was originally developed for nuclear power into a large-scale storage solution for wind and solar. It has developed a storage system that uses renewable energy to heat salt with electrical heaters, based on two-tank molten salt storage designs developed for concentrated solar power plants.

Led by German research institute Fraunhofer ISE, the consortium has built the solar cells with 100% crystalline silicon recycled from end-of-life photovoltaic panels. The silicon is recycled through a technique conceived by German specialist Reiling GmbH & Co. KG and the Fraunhofer Center for Silicon Photovoltaics CSP.

Spanish renewable energy company Acciona is using a robot dog, instead of drones, to monitor a solar park in northern Chile. The device has a built-in thermal vision system that generates thermographic reports on the status of the different PV plant components, as it walks between the panel rows following a programmed route.