Technology and R&D

A research group in the United States is proposing to add social variables in GIS-MCDA algorithms for PV project planning as a solution to avoid opposition to large scale solar from local communities. Although some efforts have already been made in this direction, there is still much to be done to understand the degree to which measuring these variables proactively could help mitigate public opposition down the line, on individual projects.

French floating PV specialist Ciel&Terre said the plant is being split into smaller islands, with a square shape, to avoid stress concentration.

The Northvolt manufacturing facility in Gdansk should become Europe’s largest factory for energy storage solutions. The production is scheduled to begin in 2022 with an annual capacity of 5 GWh. The company wants to expand it to 12 GWh.

Researchers in the Netherlands have sought to identify all those semiconductor materials that may make the application of carrier multiplication in photovoltaics much more than a mere suggestion. According to them, the bandgap of the materials should be between 0.6–1.0 electronvolt (eV), which would result in maximum theoretical efficiency of around 44%. 2D and bulk materials were indicated as the most promising with near-ideal carrier multiplication.

The novel methodology can be used for 71 countries located across ‘sun belt’ areas of east Asia, South Asia, and sub-Saharan Africa. The model relies on 2014 and 2015 geo-referenced datasets in various formats and spatial resolutions, as well as on a population dataset based on global human settlements (GHSL) and World Bank national-level estimates of electrification.

Scientists in Sweden developed a new aerogel process to manufacture silicon anodes for lithium-ion batteries, promising to offer batteries with greatly increased capacity compared to those on sale today. By growing nanometer-sized particles of silicon onto graphite, the group was able to demonstrate a device that overcomes many of the challenges common to silicon as anode material. While there are still challenges in terms of stability and capacity retention, the approach could ultimately yield low-cost, large-scale production processes.

The panel features an efficiency of 20% and a thermal power of 600 W-thermal per square meter.

U.S. scientists have put luminescent solar concentrators in a windowpane to absorb certain light wavelengths and transmit them to solar cells. The concentrators are made of a conjugated polymer sandwiched between window layers.

The new devices feature efficiencies ranging from 20.7-21%. The panels are said to be compatible with a wide range of slates and tiles, include special fixings for different batten thicknesses, and achieve the highest fire rating and wind resistance without modifications to the roof.

A refinery of Italian oil product provider Saras will host a large scale electrolyzer that will produce hydrogen to be used as a raw material in the refinery itself. The green energy production will be set up by Italian energy company Enel.