Research

Finnish company ICS has developed a foil which it claims can significantly increase the yield of solar panels, when applied to the edges of a PV module. Germany’s Fraunhofer ISE has confirmed that the increase in performance for conventional solar modules with the solar film is ranging from 5% to 10%.

The Chinese manufacturer has claimed a world record for a large-size, contact-passivated solar cell. The result, certified by Germany’s Institute for Solar Energy Research in Hamelin, betters the company’s previous record by almost 0.6%.

Two new pass/fail protocols are said to be able to separate cells which present high hot-spot possibility, show high current leakage and demonstrate intermediate behavior. The sorting technique relies on a manual solar simulator, an infrared camera and a tool to measure isolation.

Scientists in the U.S. have estimated the expense of strengthening solar systems. The researchers stressed that the upfront investment needed to take 13 key measures may be outweighed by the benefits.

Scientists in the United Kingdom have investigated the formation of cracks in PV cells, confirming that the high temperatures cells are exposed to during soldering for interconnection are a leading cause of cracking. Their findings will aid future research into module reliability and predictions of how cracks are likely to form.

Results from PID stress tests can be misleading when bifacial PV modules are PID-stressed from just one side using the foil method in IEC TS 62804, according to a new study by Belgian researchers. An unintended electric field arises between the non-stressed side of the cell and the grounded interior of the climate chamber, which may have the undesired effect of causing additional PID stress.

Danish researchers have shown that adding 250 W solar panels to all of the buggies in a 50-cart fleet is a profitable investment. With an upfront investment of around €75,000, annual benefits of around €15,000 are possible, they claim.

The volume of solar electricity generated and proportion of self-consumption at the Lake Maiwald floating plant have both surpassed expectations. Gravel company Ossola has been able to reduce its electricity bill 10% as a result.

A prototype of an energy-harvesting, solar-powered smart window device has been developed by scientists from the U.S. Department of Energy’s Argonne National Laboratory. The window was created by integrating a semi-transparent perovskite solar cell and a multi-layer nanophotonic coating.

French energy giant Engie recently commissioned a solar module testing facility in Chile’s Atacama Desert, a region which has the world’s highest solar radiation. Thore Müller – head of bifacial PV R&D and solar services at Engie Laborelec, talked to pv magazineabout the advantages of testing panels, inverters and cleaning systems in hot, arid environments.