Western Europe

Falling module prices will help PV post another record year after an estimated 132 GW was installed worldwide in 2020, according to an energy transition investment trends report published by Bloomberg New Energy Finance.

Batteries based on vanadium or zinc bromide represent the cutting edge of redox flow storage tech, an international research team has claimed. They have identified challenges and opportunities for about a dozen redox flow storage technologies, while providing estimates of their current and projected levelized costs of storage.

Scientists in China found that capsaicin, the natural compound responsible for a chili pepper’s spicy flavor, can also act as a ‘secret ingredient’ in perovskite solar cells, making them both more efficient and stable. The group added capsaicin to the precursor materials of a common perovskite, leading to dramatic improvements in the resulting solar cell.

A recent ruling of the Belgian constitutional court has canceled the 15-year grace period granted to residential PV system owners to keep operating under net metering despite the arrival of smart meters. The Flemish government said it will provide some compensation for the financial losses that this decision will cause.

Scientists in Spain and Colombia took a closer look at the degradation mechanisms affecting perovskite solar cells, and developed a new, high throughput method to characterize their performance in an outdoor setting. The group evaluated the method through outdoor testing on perovskite modules manufactured in a lab. it expects its findings to offer easier device characterization and better understanding of the degradation mechanisms affecting perovskite solar cells, both important factors in the technology’s development.

European renewables, including Spanish solar, made big gains as energy demand recovered before the second wave of Covid infections. Nuclear was a notable loser, in part because clean energy volumes in the north of the continent drove down power prices sufficiently to make reactors uncompetitive.

German scientists have designed a manufacturing process to reduce the thickness of the molybdenum diselenide interface layer in kesterite solar cells. They used two different configurations of silicon-oxynitride diffusion-barrier layers.

Spain’s Repsol will develop a €4.5 million ($5.5 million) pilot project to produce green hydrogen with floating PV for the Santander Port Authority. It will be completed in December 2023.

The two companies want to test a floating PV array under harsh weather conditions in rough waters for at least a year. The system will be based on a floating solar technology developed by Maritime Moss, a unit of Saipem.

German scientists have fabricated an enhanced amorphous germanium PV cell that confines light in an ultra-thin absorber. It has the potential to combine PV with photosynthesis in new solar applications on bio-reactors, greenhouses, and agricultural land.