Lithium-metal battery with capacity retention of 88% over 1,000 cycles
German scientists have applied a new combination of cathodes and electrolytes to improve the stability of lithium-metal batteries. They fabricated a device with an energy density of 560 watt-hours per kilogram and a Coulombic efficiency of 99.94%.
Blue is not the new green
A new study from Stanford University and Cornell University shows that blue hydrogen can produce more greenhouse emissions than heat produced by coal and gas. The modeling classifies blue hydrogen emissions as carbon dioxide and unburned fugitive methane, as well as lifecycle emissions linked to the mining, transport, storage, and use of methane.
AI-powered bidding platform for Australia’s biggest solar farm
The operators of Australia’s largest solar farm have turned to a software-based bidding solution as they seek to optimize dispatch and manage the facility’s market trading and power purchase commitments amid increasing market volatility.
Portable charging trailer for commercial EV fleets
U.S.-based Xos offers a mobile charging station for commercial electric fleets, in order to provide power without making fixed infrastructure upgrades.
SMA warns of electronic component shortage
In the first half of the year, the German PV inverter maker recorded high demand for its inverters and storage solutions from the residential solar segment. The effects of the corona pandemic, however, have had an impact on the commercial segment and, although a recovery in demand is expected in the second half of the year, SMA said it is currently dealing with delivery issues.
Germany needs 446 GW of PV for 100% renewables scenario
According to a new study by the Fraunhofer ISE, there is more than enough space for this huge growth in installed solar PV capacity. Indeed, if all available areas were used for PV – including opencast mines, facades, roads, and agricultural land used in combination with solar power generation – over 3,000 GW could be deployed.
Lithium-sulfur battery with shorter charging time, longer lifespan
Japanese scientists have developed a new lithium-sulfur battery by using titanium oxide and titanium nitride to prevent the formation of polysulfides during the fabrication process. This allows the battery to retain 85% of its capacity after 500 cycles at 2 C.
Poland deployed 1.3 GW of solar in H1
In the second quarter of the year, more than 763 MW of solar was deployed in the eastern European country.
Swedish developer announces 1 GW PV project pipeline in home country
Helios Nordic Energy has secured another 500 MW of unsubsidized solar projects across southern Sweden.
France launches multiple solar tenders
On August 5, the French energy regulator published the bidding rules for a new series of solar and renewable energy tenders. The application deadline is between October and December 2021.
