Rooftop PV

Toshiba has developed a battery that can be used with PV modules, with a design that charges and discharges at high currents. The new 20Ah-HP SCiB product has a rated capacity of 20Ah, a nominal voltage of 2.3V, and an input power of 1,900W. It measures 116 mm x 22 mm x 106 mm and weighs 545 grams.

The device has a 4-in-1 design, which means it can be connected with four solar panels with a power output of up to 625 W each, through four independent connections. The output of each panel is tracked and converted individually. According to the Chinese manufacturer, the micro-inverter can ensure savings of up to 50% due to the lower number of devices and cables needed.

The new heterojunction module series is compatible with Panasonic’s Evervolt battery and has a power output ranging from 400 to 410 W. It also features a temperature coefficient of -0.26% per degree Celsius.

The research institute has upgraded its REopt web tool to include ground-source heat pump technologies. US homeowners will now be able to simulate the impact of converting conventional heating and cooling systems to geothermal heat pumps.

Of this new capacity, 8.9 GW may come from distributed generation and 3.2 GW from utility scale solar. By the end of December 2022, the country’s installed solar power should reach 25 GW, according to new figures from Brazilian trade body ABSolar.

Cornell Researchers have found that upstate New Yorkers prefer rooftop solar to community solar under 50 acres, but opinions are split 50/50 over large-scale ground mounts. The distaste for utility-scale solar is strongest when converting forests, public land and productive farmland.

The nation reached a cumulative 151GW of renewable energy generation capacity – including large hydro – by December 31, although a large volume of off-grid equipment is not included in that figure.

Spanish researchers have developed a new modeling technique to assess the performance of semi-transparent PV systems for greenhouses. Their novel approach considers the broadband and spectral content of the irradiance, the solar cell technology and its performance metrics, and the relationship between the photosynthetic rate and the effective photon flux that falls on the crops.

With Emergency Ordinance no. 143/2021, the Romanian government has restored legal certainty for bilateral power purchase agreements and has created more favorable conditions for solar power generators under net metering regime.

A drone pilot has discovered that Tesla is starting to install solar panels, racking and inverters on the rooftop of a manufacturing facility it is building in Texas.