Energy Storage

Developed by Australian scientists, the demonstrated system is claimed to achieve a solar-to-hydrogen efficiency of 20% at a levelised cost of hydrogen (LCOH) of $4.10/kg. The direct solar hydrogen generation technology is powered by a tandem perovskite-silicon solar cell with an unprecedented high open-circuit voltage of 1.271 V, and a power conversion efficiency of 24.3%.

Electric vehicles could autonomously transport electrons between where they’re generated and where they’re needed based on algorithms and smart software, predicts JET Charge CEO Tim Washington. Such a future, he admits, is “pretty sci-fi” and still a while off.

Scientists in the United States claim to have created a crossover-free, high-voltage, non-aqueous hybrid flow battery with a novel chemistry for the solid sodium anode. The device has shown a high working voltage of around 2.6 V and a coulombic efficiency of 95.0%.

For a small infrastructure investment in rooftop solar systems, state governments can make a material difference to the lives of social housing tenants, and further their net-zero ambitions. Western Australia reports another win-win.

Put solar in your hot water tank! Off-peak electricity rates are fast becoming an unhelpful price signal for rooftop solar owners, who benefit by self consuming their excess solar ahead of drawing electricity from the grid at any time of day.

Hive Energy, Ethical Power Group and Solar South West have set up a joint venture they hope will lead to 350 MW of utility scale installations in a country which does not suffer from grid congestion and which appears to have an energy transition-friendly administration.

India’s solar module makers have built a strong track record, and now the country is set to see vast battery facilities developed. Uma Gupta provides a look into ambitious manufacturing projects and the wider enabled ecosystem.

The suitability of vanadium redox flow battery technology for Australian residential and commercial applications is set to be tested with Perth-based energy storage company VSUN Energy planning to deploy three 5 kW/30 kWh flow batteries.

The storage project is linked to a 1 GW wind and solar project portfolio, 500 MW of solar distributed generation, and the construction of a gigafactory for vanadium redox flow batteries in China.

Victorian network service provider Powercor claims a major works program designed to alleviate grid congestion in areas of high rooftop solar PV penetration has boosted the approval rate for new solar connections to export excess energy to the grid by an impressive 30%.