Residential PV

A prototype of a cement-based battery has been developed in Sweden for potential applications in buildings. Its creators claim it could become a solution to store electricity from rooftop PV and they do not exclude that it could also be used for the storage of large-scale renewables.

The nation maintained the highest score of 62.7 for solar in the latest edition of Ernst & Young’s renewables attractiveness index. It ranked third for overall renewable energy investment. 

According to the International Energy Agency, most of the global reductions in CO2 emissions between now and 2030 would come from technologies available today. In a recent report, the agency sets what it described as a “cost-effective and economically productive” pathway resulting in an energy economy “dominated by renewables like solar and wind.”

India added 7.7 GW of new renewable energy (RE) capacity in FY2020-21, out of which 5.5 GW (71%) came from solar (grid-scale and rooftop) alone. Overall power generation capacity addition for the year stood at 12.1 GW.

Using Normal, Illinois, as a … well, normal … case study, we look at how a roof’s latitude, pitch, and azimuth affect energy output.

The solar module will be available in three versions – white, black, and glass-glass. The products have an output of up to 400 W, but when the bifacial effect is optimally used, the output of the glass-glass module can reach up to 430 W. Both the white and black modules weigh less than 20 kg.

A solar racking system’s strength is determined in part by the metal racking, but it also depends on the roof’s underlying structure. Rafters and any supporting structures must be strong enough to withstand your region’s maximum wind and snow loads.

The two new products will be part of the Hi-MO4m panel series for rooftop applications. Their efficiency ranges from 19.2% to 21.2%.

The new heterojunction panel series features an efficiency of up to 21.9 % and an operating temperature coefficient of -0.26% per degree Celsius.