Technology and R&D

Iberdrola is using a springer spaniel in a solar park to smell electrical problems that could lead to power cuts. It is also using a robotic dog to detect and analyze faults in substations.

Researchers in Singapore have developed a perovskite solar cell via a new method to synthesize the capping without using lead. The cell is capped with a zinc-based compound and reportedly has a conversion efficiency of 24.1%.

Dan French, executive producer of the Solar Farm Summit, told pv magazine USA that more than 500 farmers, manufacturers, and community solar developers likely attended the first US agrivoltaics conference in Chicago last week.

The search for ever higher conversion efficiency has driven solar researchers to focus on back-contact cell approaches, and efforts to devise more cost-effective manufacturing are bringing technologies such as interdigitated back contact (IBC) solar into the mainstream, as Mark Hutchins reports.

Energy Systems Catapult has released interim data from air-source heat pump field monitoring in the United Kingdom between November 2020 and August 2022. Figures show that heat pumps are three times more efficient than gas boilers and that their median coefficient of performance (COP) on cold days is 2.44, compared to 2.80 year round.

After 800 Sungrow batteries were impacted by an outage, the Chinese manufacturer informed its local German partners about the solution to the problem. However, it remains unclear how quickly the affected battery management systems can be replaced.

Finnish technology company Intelligent Control Systems has conceived a light redirecting film that purportedly reduces energy losses in the edge area of heterojunction solar cells. It claims the film may increase the power conversion efficiency of a heterojunction module by up to 0.75%.

Chinese researchers fabricated a kesterite PV device using a transparent fluorine-doped tin oxide (FTO) substrate instead of substrates based on opaque Mo-coated soda lime glass. The cell has an open-circuit voltage of 0.522 V, a short-circuit current of 33.0 mA cm−2, and a fill factor of 68.55%.

Germany’s AEG is selling two versions of its new high-voltage residential batteries, with nominal capacities of 10 kWh and 15 kWh. They come with a 10-year warranty and reportedly have a lifecycle of more than 6,000 cycles.

More and more people want to invest in PV arrays and battery storage systems. However, there are a number of myths that could lead to disappointment among customers, according to one German consumer association.