Technology and R&D

Climate change is exacerbating water scarcity in many parts of the world, and while renewable energy is a long-term solution, in many cases it is a short-term solution, too. One such case in the energy-water nexus is that of canal-top solar, which was pioneered in India a decade ago, when the first canal-top solar array was installed in Gujarat. And new findings from the University of California and the resulting Project Nexus are now shining attention on a symbiotic application: saving water, while generating solar energy, without occupying arable land.

A Slovakian startup has developed a photovoltaic-integrated arm that provides off-grid power for weeding and other small agricultural applications. In its largest configuration, the system is 18 meters long, has a capacity of 2.4 kW, and is able to cover a cultivated area of 994 m².

The battery has a rated output of 5.5 kW and can be installed in outdoor environments. It is equipped with a hybrid power conditioner, a DC-to-DC converter, and a vehicle power supply adapter with a maximum output of 1.1 kWh.

The new prototype uses a triple-junction compound design, which sandwiches the solar cell between layers of film. The module is expected to be used in a variety of vehicles, an application that demands high efficiency and lightweight construction. Its conversion efficiency bests that of a similar Sharp module developed in 2016, which notched an efficiency of 31.17%, at the time a world record.

While many solar manufacturers are as yet undecided about which PV cell technology they will choose for their next high efficiency expansions, for Singapore-based REC, the future is HJT. pv magazine spoke to Cemil Seber, the managing director at REC Solar EMEA GmbH at the Intersolar Europe 2022 trade show, to dig deeper into these manufacturing plans.

US scientists have come up with an analytical way to evaluate the costs and net value of different configurations of large-scale wind and solar projects paired with battery storage. They identified six trends in the US electricity market and found that their framework is aligned with current commercial practices.

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 electrolyzers.

Sharp’s new 375 W solar panels feature multi-wire technology, with a power conversion efficiency of 20.4%.

Fraunhofer ISE have improved the performance of a cell structure originally developed by France’s Soitec in 2014. The German scientists managed to reduce resistance losses and the reflection on the cell front side.

Against all odds, China’s gross domestic product grew by 8.1% in 2021, up 5.8% year on year. Electricity consumption grew by 10.3%, up 7.2%. Taking this into account, it’s no surprise that China’s PV industry also reached new heights. Frank Haugwitz, the founder of the Asia Europe Clean Energy (Solar) Advisory (AECEA), takes a closer look at what is still by far the world’s largest PV market.