Utility Scale Storage

Sydney-founded battery company Gelion Technolgies today announced its partnership with lead-acid battery manufacturer Battery Energy Power Solutions. The news reflects a significant adjustment of the company’s battery design and business strategy, which is seeking to leverage industry shifts.

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%.

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%.

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.

NREL researchers developed a system that uses heated silica particles for thermal energy storage. The baseline technology is designed for a storage capacity of up to 26,000 MWh and is claimed to have a cost of of between $2 and $4 per kWh.

Scientists have demonstrated a zinc-ion battery that overcomes many of the challenges for this technology. By working with a highly-concentrated salt solution as the electrolyte, the group was able to achieve stability over more than 2,000 cycles combined with a strong electric performance. The group says that its work opens up “a viable route to developing aqueous batteries for emerging electrochemical energy storage applications.”

Canadian clean energy company Amp Energy has secured a lease agreement with Indigenous landowners to develop a solar farm and storage system in Whyalla, South Australia. The project is one of three sites which make up the company’s proposed Renewable Energy Hub of South Australia, announced in May.