Emiliano Bellini
New tech may bring heterojunction solar cells based on p-type wafers closer to mass production
An Australian-Russian research group has developed a silicon heterojunction solar cell based on p-type gallium-doped wafers with an efficiency of 22.6% and an improved stability. The scientists are convinced that these wafers may become a mainstream solution for the SHJ segment within the next decade.
Sunseap announces 2.2 GW floating PV project at Indonesian water reservoir
If built, the project would be the world’s largest floating PV power plant and would reach the same capacity as the largest ground-mounted facility currently in operation.
Solar module for floating PV from Hyundai
The bifacial panel has a power output of up to 485 W and an efficiency of up to 21%. It relies on a transparent backsheet and is encapsulated with polyolefin elastomer (POE).
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.
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.
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.
Fraunhofer ISE unveils 68.9%-efficient III-V solar cell for laser energy transmission systems
The German research institute said the gallium arsenide cell has achieved the highest efficiency to date for the conversion of light into electricity.
