Modules & Upstream Manufacturing

Dutch contractor Heijmans has deployed a solar noise barrier to test three different PV module technologies, including cadmium telluride, CIGS, and crystalline products. Initial analysis has shown unexpectedly low returns, due to the rates at which the installation is selling power to the grid. But high levels of self-consumption could make such designs competitive with conventional noise barriers.

An international research team has proposed to use nighttime radiative cooling to harvest water from PV panels and reuse it for module cleaning during the daytime. According to their findings, the proposed system has, also, a beneficial effect on the modules’ operating temperature.

A new paper from scientists at Germany’s Fraunhofer Institute for Solar Energy Systems (ISE) examines the entire history of PERC technology, from its beginnings in laboratories more than 40 years ago to today, where it represents the majority of all PV cell production. And this story is far from over, as ISE lays out a pathway to efficiencies of 26% as well as use as the bottom cell in a tandem device that it believes will keep PERC technology in mass production to 2030 and beyond.

A huge renewable energy complex is planned to include 5 GW of PV capacity. Furthermore, the State Power Investment Corporation has announced a plan to set up a 5 GW heterojunction solar cell factory in Fujian province.

Dutch startup Solarix has developed a new line of facade solar panels featuring 13.8% efficiency and output ranging from 110 to 180 W, depending on the module size and color. The panels can be bolted or glued onto aluminum mounting systems applied to facades.

Catastrophic weather events in Texas and California have led to steep increases in insurance premium costs, according to a new analysis by Norton Rose Fulbright.

Malaysian researchers have proposed a new passive technology for solar module cooling based on fin heat sinks. The tech ensures lower PV system payback times and reduces operating module temperatures by up to 26 C.

The Helmholtz Zentrum Berlin set a world record for perovskite-silicon tandem cell efficiency last year at 29.15%. The group has delved further into the cell materials, looking to better understand mechanisms behind the impressive efficiencies achieved so far. Their latest work shows that with the current cell design, long term stability at efficiencies up to 32.4% should be possible.

“Determining how many years a solar panel will last can take, well, years.”

Throughout this year, a fast-moving story has played out in PV module technology, with the introduction of larger wafers and subsequently larger module formats seeing the industry break into two camps, backing either 182 mm or 210 mm wafers. It remains to be seen whether one or the other will become a new industry standard, and both sizes will likely be plentiful on the market for the next few years at least. pv magazine takes a look at how we got to this point.