Germany

Storage specialist Fluence has launched Ultrastack, a battery energy storage system (BESS) for storage-as-transmission assets (SATA). It is designed to help network owners and operators to manage renewables curtailment, increase the use of power lines, and limit congestion.

As efficiency records tumble and devices become more stable, Europe is seeing the beginnings of a race to commercialize high-efficiency perovskite-silicon tandem solar products, reports Valerie Thompson.

High interest rates and hefty capex drove up the average payback time for solar in Germany, Spain and Italy to around 20 years in 2022, according to a new report by SolarPower Europe (SPE) and Energy Brainpool. pv magazine recently spoke with SPE Market Analyst Christophe Lits to crunch the numbers.

German researchers claim to have reduced ribbing effects in using slot-die coating for the production of perovskite solar cells. The results are reportedly the most efficient solar cell built with this technique to date.

A consortium led by the Fraunhofer Institute for Solar Energy Systems (ISE) will test grid-forming inverters at a large-scale PV facility in southern Germany. The aim of the first tests is to examine the performance of the devices under real operating conditions, stress factors, and typical stress profiles.

China Southern Power Grid, a state-owned utility, has revealed plans to use alloy materials to store hydrogen.

Germany’s Federal Ministry for Economic Affairs and Climate Action says it will fund a study on the feasibility of quickly restoring a full PV supply chain in Europe. Three German companies are leading the study and are calling for participation from other industry stakeholders.

Germany’s cumulative residential battery installations hit 5.5 GW at the end of 2022, with the large-scale storage business growing by more than 900%.

Germany’s Vaillant has developed an air-source heat pump that uses propane (R290) as the refrigerant. It can produce between 3.5 kW and 12 kW of heat, and domestic hot water to a temperature of up to 75 C. It says the heat pump maximizes savings when paired with rooftop solar.

While shingled cells have been around for a while, Tongwei’s adoption of the technology is notable as it is a manufacturer with considerable scale. If shingling can overcome some hurdles, it could prove a welcome solution as unshaded sites for PV become elusive in mature solar markets.