Sulphur-based redox flow battery with 15 consecutive hours of runtime
Researchers from Hong Kong have applied a novel charge-reinforced, ion-selective (CRIS) membrane to a polysulfide-iodide redox flow battery they had built in 2016. The redox flow battery showed a capacity decay rate of just 0.005% per day for 1,200 cycles, and a lifetime with over 2,000 hours’ cycling, which the academics said corresponds to approximately three months.
The Hydrogen Stream: 45 GW project in Kazakhstan, new push from Norway
German project developer Svevind Energy and Kazakh Invest wants to build a 45 GW green hydrogen complex in Kazakhstan. Norwegian companies Equinor, Aker Group and Saga Pure announced separate plans to further develop their green hydrogen solution.
Kehua unveils high-voltage battery for residential applications
The device has a maximum power output of 6 kW and a storage capacity of 8.2 kWh. The product comes with IP65 protection and its operation is guaranteed for 10,000 cycles.
Floating PV and flow batteries to power highways’ junction in the Netherlands
A floating PV array coupled to flow batteries is planned to power the operations of a new road under construction to connect two highways in the Netherlands. The project is aimed, in particular, at powering ventilation, lighting, and other installations of a tunnel.
Reliance Industries unveils $10 billion plan for solar, storage
India’s Reliance Industries has announced plans to invest $8.1 billion over the next three years to build gigafactories for solar, energy storage, electrolyzers, and fuel cells.
PV-driven air conditioner coupled with ice thermal storage
Researchers in China have built a PV-powered air conditioner that can store power through ice thermal storage. The performance of the system was evaluated considering operating efficiency and stability and the scientists found that a device relying on a variable-speed compressor and an MPPT controller showed very good ice-making capability.
Storing solar power with recycled batteries from Nissan
Acciona is testing four second-life batteries with a combined capacity of 130 kWh at its 1.2 MW experimental solar park in Tudela, in the Spanish region of Navarra.
New microinverter from the US
Yotta Energy’s new micro-inverter is claimed to be an ideal solution for commercial rooftop PV systems linked to between 500 kWh and 1 MWh of storage. The device has a peak efficiency of 96.5% and a nominal maximum power point tracking (MPPT) efficiency of 99.5%.
‘New solar will be cheaper than existing conventional power stations in Germany this year’
With forecasters predicting the carbon price will top €100 per ton by 2030, the latest edition of a Fraunhofer ISE study into electricity generation costs has painted the renewables-versus-fossil fuels conundrum as something of a no-brainer.
Concrete flywheel storage system for residential PV
A French start-up has developed a concrete flywheel to store solar energy in an innovative way. Currently being tested in France, the storage solution will be initially offered in France’s overseas territories and Africa.
