Technology and R&D

A team of UK researchers is working on lightweight cadmium telluride (CdTe) solar devices for space arrays. The aim is to develop 20%-efficient ultra-thin devices to provide lightweight, compact, lower cost solar power for satellites and space-based manufacturing applications.

Deye has developed a new power conversion system (PCS) optimized for solar integration, with modules ranging from 100 kW to 125 kW. The Chinese manufacturer says the PCS supports flexible system design and targets commercial and industrial (C&I) applications.

Scientists in Switzerland have conducted techno-economic analysis of perovskite solar module manufacturing costs in terms of levelized cost of energy and have found that these products could be competitive in the Alpine country provided that they achieve an efficiency of over 24% with a lifespan of 20 years and over 20% with a lifecycle of 30 years.

An international research group has investigated how PV-powered heat pumps and district heating could be combined to heat a multi-apartment building in Sweden and have found that, of the three combinations they evaluated, relying on heat pumps as the primary heat source was the “most beneficial solution” in terms of operating costs and environmental impact.

Researchers in Italy are tackling two metal halide perovskite solar PV challenges, reduce the use of lead and extend stability of the power conversion efficiency, in a novel combination of micro-concentrators and picosecond laser processing.

The Genius Tracker TF supports slops of up to 1.7 degrees between posts, thereby reducing land grading costs.

Risen Energy says it has achieved an average power output of 740 W for its mass-produced heterojunction (HJT) solar module, with certified cell efficiency of 26.61% and module efficiency of 24.81%, according to China’s Fujian Metrology Institute. Encapsulation losses were limited to 1.8%.

A castle in Bavaria, Germany, has installed a brick-red PV system using colored solar modules from Italy-based FuturaSun. The project was enabled by a recent amendment to Bavaria’s Monument Protection Act, allowing solar on heritage buildings.

Researchers in Italy have tested how perovskite solar cells could perform underwater and have found that, at very shallow depths, they may even achieve a higher power conversion efficiencies compared to reference devices operating under out-of-water conditions.

IEA PVPS Task 16 recently introduced SolarStations.org, a global catalogue of solar irradiance monitoring stations designed for researchers, developers, and policymakers. This openly available resource catalogues more than 800 multi-component stations –of which more than 400 are currently active – offering a comprehensive view of high-quality ground-based solar data.