Technology and R&D

Scientists in the United States have used microwaves to convert ubiquitous plastic packaging material polyethylene terephthalate into a battery electrode component. The researchers say anodes based on the material could be suitable for both lithium-ion and sodium-ion devices.

A U.K. study has identified 13 soiling agents with differing effects on light transmittance. Researchers found some dust particles were able to degrade photovoltaic performance by as much as 98%.

Solaria says that it will start selling its new all-black panel for residential PV applications in the U.S. market within the current quarter. The monocrystalline module is equipped with a microinverter from Enphase and has an efficiency rating of 20.2%.

The building-integrated PV devices have taken a big leap forward on the back of a partnership between Australian scientists and a major glass manufacturer which will investigate the use of semi-transparent solar cells in commercial applications, potentially revolutionizing building design.

Scientists in the United States claim to have proven the existence of an atomic-scale phenomenon in a perovskite material. Using powerful, ultra-fast bursts of light, the group was able to capture images of the ‘Rashba effects’ within the material. The researchers say the phenomenon could be harnessed to create new opportunities for PV and other perovskite-based devices.

Scientists in the U.K. have developed a system which makes panels vibrate to provide cleaning. The academics have conceded, however, they are yet to calculate the ‘sweet spot’ of mechanical stress to be applied.

Dutch company Triple Solar has launched a photovoltaic thermal solar panel for residential buildings which can be connected to a brine or water heat pump. The manufacturer says the heating system based on the panel is an ideal alternative to less efficient air and water heat pumps and more expensive geothermal systems. The grid-connected PV system can export excess power under net metering programs.

U.S. scientists have demonstrated a perovskite-silicon tandem cell they claim has low reflectance losses and strong potential for commercial production. The tandem architecture involves a manufacturing process featuring the solution-based blading of perovskites onto textured silicon wafers.

pv magazine rounds up the latest Covid-19-related stories likely to affect the world of solar and energy storage.

An ESA-backed hackathon raised the idea of turning end-of-life PV modules into hand sanitizers. The team that won the hackathon is now working to rapidly roll out the solution at scale to contain the Covid-19 spread.