Technology and R&D

In a new weekly update for pv magazine, OPIS, a Dow Jones company, provides a quick look at the main price trends in the global PV industry.

The additive consists of a molecule known as 4-guanidinobenzoic acid hydrochloride (GBAC), which is a raw material and intermediate commonly utilized in organic synthesis, pharmaceuticals, agrochemicals and dyestuff fields. The solar cell has a p–i–n structure and, thanks to the new additive, showed considerably reduced defect density on the perovskite film, which in turn results in reduced non-radiative recombinations.

M10 Solar Equipment, a German joint venture, may have shown Europe’s solar manufacturers how to scale their gigafactories by using Siemens’ plant simulation software to ramp up production of its innovative shingled-matrix solar cell production equipment, explains Tobias Wachtmann, director of global glass and solar for Siemens.

The Dutch province of North Brabant will deploy a 500-meter-long solar bike line and test its performance over a 5-year period. The PV system will be integrated into the asphalt top layer and will consist of 600 solar panels of an unspecified type.

A UK research group has fabricated perovskite solar cells that can harvest energy from near-ultraviolet (UV-A) indoor LED lights. The devices achieved an efficiency of 26.19%, an open-circuit voltage of 0.90V, a short-circuit current of 1.42 mA/cm2, and a fill factor of 77.56%, resulting in a maximum power output of 991.21 μW/cm2.

Kaneka said the cells will be utilized in the roof glass of Toyota’s Prius PHEV electric car. It plans to begin full-scale delivery of in-vehicle PV products this year.

An international research team has presented all possible system designs and applications for photovoltaic-thermal (PVT) technology. Their review includes conventional PV-T collectors, air-based systems, liquid-based installations, water-based collectors, refrigerant-based systems, heat-pipe-based technologies, dual air-water systems, building-integrated PVT arrays, and concentrated PVT collectors.

Researchers in China have built a hole transport layer with a mixed binary configuration integrating the polymer Regioregular poly(3-hexylthiophene) (P3HT) and Spiro-OMeTAD. They used it to build a perovskite solar cell that was able to retain 90% of its initial efficiency after 1,200 hours of storage in dark ambient environment.

Brenmiller secured a €7.5 million ($8.2 million) credit facility from the European Investment Bank (EIB) to build the factory.

The Renewable Energy Test Center (RETC) raised the issue of ultraviolet-induced degradation of the trending technology in its PV Module Index 2022.