Western Europe

UK scientists have compared the performance of lithium-ion storage systems and vanadium redox flow batteries for a modeled 636 kW commercial PV system in southern California. They have found that both technologies, coupled with an oversized PV array, could achieve a levelised cost of electricity of less than US$0.22/kWh (AU$0.32/kWh), while offering a self-sufficiency ratio of 0.95.

Swiss module manufacturer Megasol has unveiled a novel rooftop PV system in two variants — full-black and translucent. The installation consists of vertical supports, a ridge profile, and solar modules.

Scientists in Sweden have developed a wide-gap ACIGS solar cell with hydrogen-doped indium oxide (IOH) transparent back contacts and silver alloying to increase the absorber bandgap energy. The device achieved an efficiency of 12.0%, an open-circuit voltage of 835 mV, a short-circuit current of 22.1 mA cm2, and a fill factor of 65.2%.

A German consortium led by Fraunhofer IEE aims to bring gallium nitride inverters closer to commercial viability. The primary goal of the research project is the optimisation and miniaturisation of inverters, including passive components such as cooling systems, casings, and mounting structures.

Aurora Energy Research says in a new report that maximum green hydrogen project profitability could be achieved when solar and wind power plants are combined with electrolysers.

Chinese battery manufacturer BYD has launched an expanded portfolio of energy storage systems designed for the commercial and industrial solar markets. At The smarter E in Munich last month the company also provided a sneak peak at a new high-voltage storage system expected to be launched later this year.

German scientists have conducted a series of experiments on gallium-doped silicon solar cells to understand the causes of degradation in PV cells and modules treated with gallium rather than boron. They confirmed that the performance losses are caused by a bulk defect in the material, and found that the right combination of light and temperature can “heal” earlier damage and even lead to small improvements in overall cell efficiency.

With Australia’s presence felt strongly at the World Hydrogen Summit in Rotterdam last week, state governments are working to secure European markets through partnership agreements. Yesterday, New South Wales signed an initial agreement with Denmark which will see the distant pair support one another on matters of decarbonisation technology and trade. Just a few days earlier, Queensland’s government signed an MoU with the Netherland’s Port of Rotterdam to collaborate on opportunities to develop a hydrogen export supply chain.

The hydrogen electrolyser subsidiary of German giant Thyssenkrupp has opened a new office in Perth, Western Australia in a bid to capture some of the region’s green hydrogen frenzy.

German researchers have developed a new shape-stabilised phase change material with the ability to store up to five times more thermal energy than commercially available phase change materials (PCMs).