First AI-based control method for vanadium redox flow batteries
Australian researchers are proposing a novel, learning-based H∞ control method to enhance the performance of vanadium redox flow batteries in DC microgrids.
Micro compressed air storage system for residential, industrial applications
A Polish research team has developed a micro compressed air storage system that could be used in residential and industrial buildings where additional low-temperature waste heat is available. The system is claimed to have optimal control of the compressed air expansion process performance via pulse width modulation (PWM).
Tesla launches Powerwall 3 battery
Tesla has launched the Powerwall 3 battery with an energy capacity of 13.5 kWh and continuous on-grid power of 11.5 kW, featuring dimensions of 110 cm x 61 cm x 19.3 cm and a weight of 130 kg.
PV-driven heat pump system for freshwater production, cooling, hot water
Scientists in India have combined a solar-assisted heat pump with a humidification-dehumidification and vapor compression refrigeration (HDH-VCR) cycle to generate heat and cooling. The system is reportedly able to generate up to 5.5 l per hour (LPH) of fresh water while achieving an ‘enhanced’ coefficient of performance.
High-energy, membrane-free organic redox flow battery
US researchers have developed a new high-voltage, membrane-free, nonaqueous lithium-based organic redox flow battery. They say that the elimination of the membrane decreases the upfront costs of the battery by as much as 30%.
Shell looking to sell Sonnen
Shell, which acquired Sonnen four years ago, is now actively seeking a majority shareholder for the Germany storage system specialist.
Distributed PV, battery storage curtailment in low-voltage networks
University of New South Wales (UNSW) researchers have looked at energy losses in South Australia and have identified average curtailment of 1.5% for distributed PV sites and 0.2% for distributed PV coupled with batteries, but some locations experience generation losses of up to 25%.
PV-powered heat pumps with thermal, electrical storage
Italian researchers have looked at the potential of thermal and electrical energy storage to improve self-consumption rates in buildings when coupled with PV-powered heat pumps. They have concluded that such an approach could yield self-consumption rates of more than 80%.
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.
India approves viability gap funding scheme for battery storage development
India aims to develop 4 GWh of battery energy storage systems (BESS) by 2030-31 through its viability gap funding (VGF) scheme. The selection of BESS developers for VGF grants will undergo a transparent, competitive bidding process.
