Jetstream changes drive UK and Spain solar resource higher
In a new weekly update for pv magazine, Solcast, a DNV company, presents the solar irradiance data it collected for Europe in August. The UK saw on average 110% of normal August irradiance, with values exceeding this in the north. Spain and Portugal received 10-20% more than normal, due to reduced cloud.
EnerVenue launches new metal-hydrogen battery variant
EnerVenue has developed a new metal-hydrogen battery. The US startup says the battery’s efficiency ranges from 80% to 90%, depending on the cycle rate, and claims that its energy density per square foot is equal to or even better than lithium-ion batteries.
Anode-less redox flow batteries capable of fast cycling
Researchers in the US have demonstrated that replacing the planar lithium anode in a redox mediated lithium-sulfur redox flow battery with a high surface area scaffold enables 10 times faster cycling, up to 10 mA cm−2, without short circuit or voltage instability.
Ascent Solar hits 15.2% efficiency in production trials for CIGS cell
Ascent Solar has achieved a 15.2% efficiency for a copper indium gallium diselenide (CIGS) cell in production trials by replacing cadmium sulfide with a new material in the manufacturing process.
Coremax unveils 100Ah lithium iron phosphate for rooftop PV
The Chinese manufacturer said its new storage system is intended for use in residential and small commercial PV systems. It features a storage capacity of 30 kWh and a nominal voltage of 51.2 V.
Inverted perovskite solar cell based on methyl-substituted carbazole HTL achieves 20.1% efficiency
Indian scientists built an inverted perovskite PV device that uses a self-assembled monolayer to suppress nonradiative recombination at the interface between the perovskite absorber and the hole transport layer. The cell achieved remarkable efficiency and was also able to retain the initial efficiency rating for 3,00 h.
Akuo to deploy 200 MWh of battery storage in New Caledonia
Akuo plans to deploy 200 MWh of battery storage in New Caledonia, supplying 50 MW for three hours per day over 12 years. The facility will primarily support the operation of nickel mines.
New bio-inspired based algorithm to improve PV output under partial shading
The novel algorithm is based on the behavior of marine animal tunicates and reportedly provides remarkable results in terms of power errors. It was tested in four PV system configurations with five different shade patterns.
Brazil could produce green hydrogen for $2.87/kg, says consultancy
Sao Paulo-based Clean Energy Latin America says green hydrogen could be produced in Brazil at a levelized cost of hydrogen (LCoH) of $2.87 and $3.56 per kg in some strategic locations.
The case for hard carbon-based sodium-ion batteries
Researchers in China have summarized the technical issues hindering the development of hard carbon, which is regarded as the most promising anode for high-performance, commercial sodium-ion batteries.
