Technology and R&D

NREL has published a paper showing an experimental solar cell, with a unique technique for wiring two separate solar cells into one, that increased the cell’s efficiency by 4%. The document also offers a respectable review of other technologies being developed.

An international research team has developed a new approach for solar power forecasting that combines neural networks and pattern sequences for the first time. The performance of the new Pattern Sequence Neural Network (PSNN) was tested on an Australian data set that includes information from two years of forecasts. It can be used with different clustering and cluster-sequence extraction algorithms, and can be applied to multiple related time sequences

Scientists from Israel have used nanowires to detach particles from the surfaces of solar panels. The proposed microscopic self-cleaning technology is said to raise the efficiency of particle removal with hydrophobicity.

The French institute said the result has been certified by ISFH CalTeC, in Germany. The manufacturers claim they were able to increase cell performance by improving the plasma-enhanced chemical vapor deposition of amorphous silicon nanolayers and the conductive and anti-reflective transparent oxide layers.

The EIB and the Hydrogen Council aim to jointly develop new ways to generate funding for hydrogen projects under the European Commission’s InnovFin Advisory program. The two parties, however, have not disclosed the financial terms of their planned collaboration.

The European Commission has approved use of funds given by seven member states to back Europe-wide R&D projects across the lithium-ion battery value chain, with the aim of potentially unlocking an additional €5 billion in private sector investment.

Scientists from China’s State Key Laboratory of Fire Science have analyzed the combustion behavior of flexible PET-laminated PV panels. They found toxic gases including sulfur dioxide, hydrogen fluoride, hydrogen cyanide and a small amount of volatile organic compounds are released when such a PV system burns.

Chinese scientists have developed a PV floor tile they say is suitable for pavements and cycling tracks. The devices were tested on a ‘green deck’ in Hong Kong. The developers say the tiles have demonstrated satisfactory solar energy conversion, anti-slip performance, heat-resistance and strength.

A global study has found that Australia lacks interest in electric vehicles, due largely to the impedimental admixture of cost, range anxiety, and a lack of charging options.

With the absorption of ‘hot’ charges, which lose their energy faster than it can be absorbed by any convention technology, solar cells could become massively more efficient. An international group of scientists has developed a method to examine the bond between a perovskite and charge extraction layer, and determine the most suitable materials for hot charge extraction in a solar cell.