science

Researchers built the device by attaching 17%-efficient monocrystalline PV cells to a mortar roof tile that was doped with a phase-change material (PCM). The PCM solar tile provided 4.1% more power than the PV tile with no cooling agent in the winter, and 2.2% to 4.3% more during the summer.

Dutch researchers are trying to determine whether large-scale PV projects can be deployed on flood-control dikes across the Netherlands. A 5 MW solar project has already been built on a dike near Groningen, but the researchers believe there is potential to build up to 2.9 GW of PV on such embankments.

U.S. scientists have found a new ‘de-doping’ process in perovskite solar cells that could cut production costs and produce better devices. They have used this to fabricate a mini-module with 17.8% efficiency.

New Zealand researchers have proposed a way to assess the technical and economic feasibility of PV-powered parking machines. Solar might be an ideal solution, but the siting of the machines is critical and should be planned in advance, in line with available solar radiation and potential shading.

Swiss startup Insolight has raised €4.6 million to bring its concentrating PV module technology to commercial production. The panels have a claimed efficiency of 30% and power output of 160 W. Originally conceived for rootop solar, the product is now being recommended as an interesting option for agrivoltaic projects.

Researchers have set out to study the kinetics of lithium deposition during cycling in a battery. By changing different parameters, they’ve found that it’s fairly easy to put lithium into amorphous form, which is superior on an electromechanical level.

South Korean scientists manufactured the cell with the chemical bath deposition method, using different thiourea concentrations. For the buffer layer, they used zinc instead of cadmium sulfide. The cell is flexible and is available in seven different colors.

A Pakistani-Chinese research group has demonstrated a new maximum power point tracking method, based on a fuzzy logic algorithm to provide faster results. The converter tech is claimed to have an impact on PV system efficiency and provide isolation between the load and the PV array.

Researchers in Spain have developed a maximum power point tracking (MPPT) algorithm based on just one input parameter – PV module temperature. The algorithm has already shown stability in testing, the scientists claim.

A French-Italian research group has shown that BIPV facades on buildings can cause a ‘darkening’ effect by reducing light reflectance on nearby installations, dragging down energy production by 11%. The ‘urban heat island effect’ can also weigh on PV system performance, the researchers said.