Tigo unveils rapid shutdown device for high-power solar modules
Called Tigo TS4-A-F RSD, the device can operate with a maximum current of 15 A and a maximum voltage of 90 V. It measures 138.4 x 139.7 x 22.9mm and weighs 490g.
Climate district relying on solar-powered hydrogen in Germany
A 1 MW electrolyzer in the middle of a residential area in Esslingen, southern Germany, is intended to significantly reduce the carbon footprint of its residents. One of the energy sources used in the project is rooftop PV located in the area.
New perovskite material for 23.5%-efficient solar cell
Researchers in Japan have found a new way to fabricate one of the most promising perovskite materials for PV application — the α-formamidinium lead iodide known as α-FAPbI3. With a pre-synthesized version of this material, they were able to produce a cell with a power conversion efficiency of 23.5% and a lifespan of more than 2,000 hours.
Storing solar power with recycled batteries from Nissan
Acciona is testing four second-life batteries with a combined capacity of 130 kWh at its 1.2 MW experimental solar park in Tudela, in the Spanish region of Navarra.
New microinverter from the US
Yotta Energy’s new micro-inverter is claimed to be an ideal solution for commercial rooftop PV systems linked to between 500 kWh and 1 MWh of storage. The device has a peak efficiency of 96.5% and a nominal maximum power point tracking (MPPT) efficiency of 99.5%.
Solar energy collectors… grown from seeds!
Rice University engineers produced “near-perfect” 2D perovskite crystals for photovoltaic applications, grown from seeds.
Concrete flywheel storage system for residential PV
A French start-up has developed a concrete flywheel to store solar energy in an innovative way. Currently being tested in France, the storage solution will be initially offered in France’s overseas territories and Africa.
Black perovskite solar cell with 15% efficiency via thermal evaporation
The cell exhibited an open-circuit voltage of 1.1 V and was able to retain around 90% of its initial performance after 215 days of exposure to dim light at room temperature. According to its creators, this performance and the notable stability were ensured by the thermal evaporation technique used for depositing the perovskite layers onto the cell.
Solar 101: It all comes down to curb appeal
The residential solar industry has taken notice of the demand for beautiful, hidden panels, and is now providing creative and attractive designs that you can incorporate into your rooftop solar project.
Flexible perovskite solar module with 10.5% efficiency
The methylammonium-free inverted solar module was built on a flexible substrate made of polyethylene terephthalate (PET). A hole transporting material made of poly(triarylamine) (PTAA) and a double-cation cesium formamidinium (CsFA) perovskite layer were deposited through blade-coating and nitrogen-assisted blade-coating.
