An Italian company has developed a system that can store energy from wind, solar and grid electricity by compressing and using CO2 without any emissions. The system draws CO2 from an inflatable atmospheric gas holder, stores it, and uses it to produce power again, when demand for stored energy arises.

Mitrex Integrated Solar Technology has developed a new solar panel with 19.5% efficiency that measures 2,036 mm x 1,992 mm x 40 mm and weighs in at 42 kg. It can operate with a system voltage of 1,000 V and has a power temperature coefficient of -0.36% per degree Celsius.

Developed by scientists in Turkey, a system prototype has operated at lower PV module temperatures and removed most of the dust accumulation. The researchers are now planning to improve the device by applying MPPT converter topologies.

U.S. solar thermal specialist Fafco is set to launch a new photovoltaic-thermal heat pump solution for water and pool heating. The system consists of photovoltaic-thermal panels, a 5 kWh thermal battery with a heat pump, and an electric hot water heater.

Developed and distributed by Portuguese start-up ChemiTek, the detergent is claimed to reduce water consumption by about 50% and increase energy production by up to 5%. The product was recently certified by the German laboratory TÜV Sud, according to the EN 61215 standard.

A U.K. research group is developing an anti-soiling solution produced via a chemical process compatible with glass manufacturing. The Engineering and Physical Sciences Research Council is providing $1.6 million of funding for the project.

IHS Markit predicts that global installed solar PV capacity will grow by 20% to over 200 GW in 2022, despite a difficult cost environment. PV system costs are expected to resume their downward trend from 2023, when more polysilicon capacities will come into operation.

The Sun Horizon consortium has started to collect performance data on two pilot projects that combine heat pumps with solar systems using hybrid panels on homes in Riga, Latvia. The solution features a heat pump for space heating and domestic hot water and PVT panels to produce power for heating and domestic appliances, with excess power fed to the grid.

In a new report, experts from the International Energy Agency Photovoltaic Power System Programme (IEA-PVPS) have assessed the economical and environmental benefits of repairing and reusing or replacing solar modules that are not complying with a 30-year expected lifetime. They found that reusing offers the best environmental impact in all cases, while the profitability of this option is currently guaranteed only by rooftop PV under certain conditions. As for large-scale solar, module replacement remains the most competitive option.

Researchers in Kenya have analyzed the performance of an off-grid PV system located near an isotropic antenna as an emitting source.