Technology and R&D

A researcher has proposed a new approach to apply maximum power point tracking techniques to optimize electricity production in wind-solar power projects. The permanent magnetic synchronous generator hybrid model used in the study is based on a multi-input rectifier stage which is said to be able to eradicate current harmonics and eliminate the need for extra input filters.

Researchers at Saudi Arabia’s King Abdullah University of Science and Technology have demonstrated a method they say could improve the stability of perovskite structures. The group found adding an organic dopant served to increase the strength of chemical bonds between organic and inorganic elements of a perovskite.

Scientists led by Moscow’s Skolkovo Institute of Technology have drawn upon several of their recent battery material innovations to create a potassium-ion device. The institute says its development will pave the way for ultrafast and durable, high capacity metal-ion batteries, to supply rising demand for energy storage innovations.

Researchers at Sweden’s Lund University have discovered a mechanism by which iron-based solar cells lose up to 30% of their charge. Understanding how the loss occurs, say the researchers, will be the first step to closing the loophole and developing more efficient solar cells based on the abundant material.

Scientists from several German research institutes, as well as South China University of Technology, have set a new efficiency record for an organic PV module. The group demonstrated a 12 cell, 26cm² module with an efficiency of 12.6%. The results have been confirmed by the Fraunhofer Institute for Solar Energy Systems.

Researchers have made a finding they say could vastly simplify and reduce the production cost of perovskite solar cells. Working with mixed halide perovskites, the group found a disordered chemical composition can improve device efficiency.

Parent company FlixMobility plans to test hydrogen fuel cell vehicles in Europe.

A U.S. research group has developed a metal-carbon-nanotube composite – MetZilla – which can be embedded in commercial, screen-printable silver pastes and is said to reduce the formation of hotspots in solar modules and to prolong panel lifespan. The composite metal contacts are also ‘self-healing’ as they are able to regain electrical continuity after cycles of complete electrical failure caused by extreme strain.

The California-based Hanergy subsidiary has broken its efficiency record for a large area, flexible CIGS module, achieving 18.64% on a device with a 1.08m² aperture. The record has been confirmed by Germany’s Fraunhofer Institute for Solar Energy Systems.

Scientists at Rice University in the United States have found by strategically adding indium to an all-inorganic, lead-based perovskite, they can reduce the number of defects in the material and improve its efficiency, as well as providing a significant boost to stability.