Sonnen battery still running after 28,000 full charge cycles
Sonnen has published test results indicating the longevity of its storage systems after extended use.
Portable hydrogen fuel cell generator with power output of 400 W
The generator can be combined with batteries, solar panels, or small wind turbines. It is based on a proton exchange membrane fuel cell technology and is claimed to have a minimum lifetime of 5,000 working hours.
Solar module cooling techniques for the desert
Saudi scientists have tested several cooling technologies for solar panels and have found that active techniques work better than passive ones under harsh climatic conditions. The most effective one consists of a system based on four heat pipes immersed in a box of liquid, as liquid bulk, integrated with the back of the solar panel.
JinkoSolar claims 23.53% efficiency for n-type, TOPCon, monocrystalline panel
The PV module relies on Jinko’s TOPCon mono cell technology, for which a record efficiency of 25.25% was announced in late May. TÜV Rheinland has confirmed the result.
Singapore’s 60 MW floating PV array up and running
There’s talking the talk, there’s walking the walk, and then there’s walking the walk on water. Earlier this year at US President Joe Biden’s Virtual Leaders Summit on Climate, Singaporean Prime Minister Lee Hsien Loong said the city-state would need to “innovate and use technology extensively” to overcome its resource scarcity. With one of the world’s largest floating PV arrays now in operation, it seems as if Singapore is floating in the right direction.
The prospects for solar in a 1.5C world
We will need 10.7 TW of clean energy generation capacity this decade to stay on track with the most ambitious of the climate change paths agreed in Paris, which would include plenty of solar investment and jobs, according to the International Renewable Energy Agency.
All solar cell efficiencies at a glance
The research group led by Professor Martin Green has published Version 58 of the Solar cell efficiency tables. He spoke with pv magazine about the criteria with which these tables are compiled and the importance of result certification by independent third parties.
Transparent solar panels for agrivoltaics
Romande Energie and Swiss research institute Agroscope are testing startup Insolight’s transparent PV panels in an agrivoltaic project. The modules are replacing the plastic covers used to grow strawberries and raspberries.
Trina Solar achieves 23.03% efficiency for 210 mm PERC solar module
The result was confirmed by Germany’s TÜV Rheinland and TÜV Nord.
Using the oceans’ depths to store renewables, compress hydrogen
Underwater gravity energy storage has been proposed as an ideal solution for weekly energy storage, by an international group of scientists. The novel technology is considered an alternative to pumped-hydro storage for coasts and islands without mountains that are located close to deep waters, and may also be interesting for PV if used to store green hydrogen.
