Vanadium redox flow battery prototype from Spain
Researchers in Spain have assembled a 10kW/20kWh vanadium redox flow demonstrator that paves the way for a 50kW battery.
Switzerland plans winter bonus for PV systems with a tilt angle of at least 75 degrees
The Swiss Federal Council has the task of standardizing the incentives for renewable energy and has now started the related parliamentary process. A winter bonus for photovoltaic systems may be introduced in the future.
Longi achieves 25.47% efficiency for gallium-doped p-type heterojunction solar cell
The result, confirmed by Germany’s Institute for Solar Energy Research Hamelin (ISFH), was achieved on a heterojunction solar cell based on an M6 wafer.
Growatt unveils new inverter for residential applications
The new device has an efficiency of up to 98.6% and a European efficiency of up to 98.1%. It features up to two maximum power point tracking (MPPT) inputs, with MPPT voltage ranging from 140-1,000V.
‘African countries must unite to establish a green hydrogen economy’
Only by working together can African nations overcome the obstacles to exploiting their abundant renewables resources and producing affordable green hydrogen – for use at home and in a European economy keen to wean itself off Russian gas, an online event has been told.
Chinese poly maker says its granular silicon will be in demand when EU puts up carbon border
GCL-Poly, in its annual results statement for 2021, has pointed to certification of its product’s low-carbon claims by French government body the Agence de l’Environnement et de la Maîtrise de l’Energie.
Tin perovskite solar cell with operational stability of over 1,300h
Scientists in Spain have built a 10.61%-efficient tin perovskite solar cell with improved open-circuit voltage and stability. The device was fabricated with formamidinium tin iodide (FASnI<sub3), sodium borohydride (NaBH4) as a reducing agent, and a bulky secondary ammonium cation of small size known as dipropylammonium iodide (DipI).
Ultrathin photovoltaic silicon membrane with 65% light absorption
A Dutch-British research group is developing a 1μm crystalline silicon membrane with a remarkable optical performance and a hyper-uniform pattern design. A simulation of the device was theoretically able to achieve an absorption equivalent photocurrent of 26.3mA/cm2.
Fortescue, E.ON sign green hydrogen deal for Europe
A new deal between Fortescue Future Industries and E.ON will see the Australian company deliver 5 million tons of green hydrogen to Germany, the Netherlands, and multiple cities in Europe by 2030.
New solar-powered boiler from Germany
Timo Leukefeld GmbH has started offering a decentralized water-heating solution with capacities ranging from 125 liters to 200 liters.
