Rooftop PV

The German research institute has proposed a technique based on the surface structure of the wings of the morpho butterfly to produce colored BIPV panels for facades and rooftops. The process is claimed to make it possible to color the modules with an optical effect and not with color pigments, which reduce their efficiency.

While Spain is struggling with the largest snowfall since 1971, pv magazine editor Alejandro Diego Rosell has asked two Spanish experts what the consequences of the massive snow loads produced by Storm Filomena will be on solar installations. According to them, some PV systems may stop working completely and component failures may not be excluded.

The Netherlands Authority for Consumers & Markets has established that the first-come, first-served principle applied by grid operators is the correct approach to manage current grid congestion. The decision was taken to resolve a legal dispute between Liander and an agricultural entrepreneur that was denied grid access for a PV project.

A Slovenian research team has analyzed the behavior of a full-size cell PV module and several 1/6 cell panels under partial shading and has come to the obvious conclusion that the cell cut panels suffer fewer energy losses. They also found, however, that the orientation of the cells connected in series should be aligned as much as possible with the shade shape to lower the losses and to minimize reverse cell voltage.

Renewable energy production increased by 31% and now represents 18.6% of the country’s electricity mix. Its cumulative PV capacity increased from 3,887 MW at the end of 2019 to 4,788 MW at the end of December.

Australian Vanadium is pushing ahead with plans to develop a vanadium redox flow battery for the Australian residential market, via its VSUN Energy subsidiary.

Researchers in Saudi Arabia claim to have increased the efficiency of organic PV devices with diquat, a compound used in herbicide. The molecular diquat dopant increased optical absorption and the lifetime of electrical charges when light was absorbed.

The German energy company has acquired a 49% stake in U.K. installer Eco2solar. The British company offers solutions for commercial and residential projects.

Brazil may see the deployment of 4 GW of new distributed generation solar capacity this year and another 5 GW next year, according to Aldo Pereira Teixeira, the CEO of Brazil’s largest PV product distributor and system integrator. In an interview with pv magazine, he explains why and how this huge growth could materialize.

Simarpreet Singh, director at EPC firm Hartek Group, speaks to pv magazine about the impact of the Covid pandemic on India’s rooftop solar sector, technology trends shaping the market, and the outlook for 2021.