Technology

Over Easy Solar AS has developed a rooftop PV system with two generation peaks – one in the morning at 11 am, and one in the evening at 7 pm. It has been deployed on a school building.

The futuristic Neom City will be powered exclusively by renewable energy, but a co-optimization approach with the water sector will be crucial for desalination and sustainable water supplies. Saudi scientists have assessed different system configurations and determined that solar-plus-storage would deliver the lowest levelized cost of energy.

The Dubai Electricity and Water Authority says its novel redox flow battery stack offers better electrolyte distribution, which could result in higher power densities and lower manufacturing costs.

A Chinese-US research group has designed a proton exchange membrane fuel cell with a hybrid electrocatalyst. The scientists said the device shows remarkable stability and low performance losses.

In other news, Stellantis demonstrates wireless charging tech that transfers energy from road infrastructure to EVs, Toyota defies shareholder pressure to step up electrification efforts, and Volkswagen threatens to dethrone Tesla on EV sales by 2024.

French solar energy institute INES has developed new PV modules with thermoplastics and natural fibers sourced in Europe, such as flax and basalt. The scientists aim to reduce the environmental footprint and weight of solar panels, while improving recycling.

Scientists in Iraq have applied an amorphous carbon nitride (CNx) thin film as an anti-reflective layer in commercial crystalline silicon solar cells. They claim they were able to improve their efficiency from 5.52 to 13.05%.

Researchers in China have developed a four-junction tandem perovskite/CIGS cell. They claim it is the most efficient device of its kind with an n-i-p structure thus far. They used a novel surface passivation strategy to improve the perovskite cell efficiency and fill factor.

Researchers from Australia’s University of Wollongong presented a study for alkaline electrolysis where the liquid electrolyte is continuously drawn up a separator, leading to bubble-free operation at the electrodes. Meanwhile, Korean researchers developed a novel heterostructured catalyst, Argentina’s province of Tierra del Fuego presented its hydrogen strategy, Lhyfe and shipyard Chantiers de l’Atlantique are working on the world’s first offshore renewable hydrogen production demonstrator, and Saudi Aramco outlined its hydrogen targets in its first sustainability report.

Taiwanese analyst TrendForce said it expects global energy storage capacity to reach 362 GWh by 2025. China is set to overtake Europe and the United States is poised to become the world’s fastest-growing energy storage market.