Saudi Arabia

As Siemens commissions Germany’s second largest electrolyzer at the Energy Park in Wunsiedel, Engie has taken the Final Investment Decision for a project in Western Australia, scheduled for completion in 2024. Meanwhile, two reports shed light on the future of green hydrogen: on the demand side, the MENA region could use it to become the global leader of green steel; on the supply side, BNEF welcomes the support commitments coming from Europe and the United States.

Scientists have found that perovskite solar cells and perovskite-silicon tandems might be vulnerable to potential-induced degradation. They exposed tandem cell devices to PID stress and found that they lost as much as 50% of their initial performance after just one day.

Researchers in Saudi Arabia claim to have reduced cell-to-module losses in tandem perovskite silicon photovoltaic devices through an optical redesign of the module through refractive-index engineering. They built a monolithic perovskite-silicon tandem mini-module with a power conversion efficiency of 26.2%.

Saudi Arabia’s crown prince traveled to the Greek capital of Athens this week, representing his first official trip to Europe since the 2018 killing of Saudi journalist Jamal Khashoggi. His visit was marked by the signing of several agreements between the two countries and some big statements issued by the Saudi leader regarding green energies and hydrogen.

Researchers in Saudi Arabia have built an inverted perovskite-silicon tandem device with a 1 nm thick interlayer based on magnesium fluoride (MgFx). They claim it can stop voltage losses and increase power conversion efficiency, while retaining 95.4% of its initial efficiency after 1,000 hours.

ACWA Power and Emirates Water and Electricity Co. (EWEC) have commissioned the first phase of the Al Taweelah Independent Water Plant in the United Arab Emirates. The facility, which can produce more than 6.4 million cubic meters of water per day, sources some of its power from a nearby solar park.

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.

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.

In other news, Plug Power revealed plans to build a 35-ton-per-day green hydrogen generation plant at Belgium’s Port of Antwerp-Bruges and UK researchers developed an artificial leaf device made from bismuth oxyiodide that is able to harvest sunlight to produce hydrogen fuels.

Scientists in Saudi Arabia looked at the potential of different solar technologies to meet energy demand for cooling systems. They found that PV is the best cost-effective option, especially for compression refrigeration cycles in hot climates.