The National Renewable Energy Laboratory (NREL) has updated its research cell efficiency chart for a range of PV technologies.

Maxeon has filed two different lawsuits in the United States against Hanwha Qcells and REC over claims that the two manufacturers used an unspecified tunnel oxide passivated contact (TOPCon) solar cell technology.

The new heat pumps use R-454B as a refrigerant and are specifically designed to be matched with Johnson Controls’ residential gas furnaces. Their size ranges from 1.5 tons to 5 tons and their coefficient of performance (COP) spans between 3.24 and 3.40, according to the manufacturer.

A research team has investigated the optical properties of perovskite/perovskite/silicon triple-junction cells and has found these devices may have a practical efficiency potential of 44.3% assuming idealized electrical parameters. These cells may also potentially achieve a fill factor of 90.1%.

U.S.-based Thornova said its new panel features a power conversion efficiency spanning from 22.4% to 23.2% and a temperature coefficient of -0.29% per C. The company is a subsidiary of China-based manufacturer Sunova Solar and is currently planning a cell and module factory at an unspecified location in the United States.

Maxeon has filed a lawsuit against Canadian Solar in a US court, claiming patent infringement on an unspecified TOPCon solar cell technology.

Maxeon said it has achieved a 24.9% efficiency rating for a full-scale Maxeon 7 solar panel using its IBC technology. The US National Renewable Energy Laboratory (NREL) confirmed the result.

The U.S.-based manufacturer said its new heat pump system has 5-ton capacity and a coefficient of performance of up to 3.95. It uses difluoromethane (R32) as the refrigerant and relies on DC inverter enhanced vapor injection (EVI) technology.

An international research team explained that, although inverter clipping is initially effective in mitigating soiling losses, these losses could become more visible with time, as solar module degradation makes clipping less frequent. They also warned that inverter under sizing alone may not be enough to mitigate soiling losses and suggested cleaning as an additional way to reduce them.

Chinese manufacturer JinkoSolar says its solar module shipments reached 78.5 GW in 2023. This year, it says it hopes to sell up to 110 GW of panels.