Distributed Storage

US scientists have developed a battery that can retain 92% of its initial capacity over periods of 12 weeks, with a theoretical energy density of 260W/hour per kg. It was built with an aluminium anode and a nickel cathode, immersed in molten-salt electrolyte.

Tesla has increased the price of its Powerwall solar battery system by almost a grand, taking the total – before installation – to $13,700.

Homeowners who participate in a new Enphase pilot project will connect their home batteries to the US grid, sharing energy through Green Mountain Power’s distribution system in exchange for financial incentives.

Japanese automaker Toyota has used its hydrogen tank tech in a new module to expand hydrogen storage to railways, shipping facilities, cargo ports, and fuel cell generators. Its 70MPa tank has a storage capacity of 2.7 kg to 18.7 kg and a tank mass ranging from 43.0 kg to 243.8 kg, depending on the size.

Analyst Wood Mackenzie has predicted soaring demand for electric vehicle devices will ensure supply will not keep pace with demand until some point in 2023.

New Zealand’s federal government has opened the final funding round in its NZ$14 million (AU$13 million) Māori Housing Renewable Energy Fund, open to small and larger-scale projects.

The rollout of rooftop solar in the remote coastal town of Broome in northern Western Australia is set to get a boost with state-owned regional energy provider Horizon Power installing two centralised community batteries that are expected to unlock more than 1,400kW of solar PV hosting capacity.

Researchers in Spain have designed a pumped thermal energy storage system that uses supercritical carbon dioxide as a heat pump and a heat engine. The proposed system is claimed to achieve an efficiency of 80.26% and an LCOS of €0.116/kWh (AU$0.18/KWh)

German luxury carmaker Mercedes-Benz has made public its plans partner with Primobius, a 50:50 joint venture between West Australian company Neometals and Germany’s SMS Group. Mercedes has said its intention is to build a 2,500 tonne per year lithium-ion battery recycling plant in southern Germany with Primobius as its technology partner.

Sodium-ion batteries are emerging as a viable alternative to lithium-ion technology. Industrial heavyweights CATL and Reliance Industries, following the acquisition of UK-based sodium-ion specialist Faradion, are bent on bringing the technology out of the lab and into mass production. Against a backdrop of soaring prices and predicted shortfalls of lithium-ion battery materials, sodium-ion chemistry has never been more tantalising.