Distributed Storage

Brisbane-based battery casing company Vaulta has more to celebrate than just Brisbane’s winning 2032 Olympic and Paralympic bid. The company has won a Federal government Accelerating Commercialisation grant that will see its innovative design pushed ahead as the tide of electric vehicles rising globally.

Recent research has revealed a previously underestimated role for oxygen in limiting the performance of lithium-ion batteries. Newly published research from both Japan and the United States has sought to look deeper into the chemical reactions at the heart of lithium-ion storage; and to better characterise the cumulative effects that minuscule amounts of oxygen released during these reactions can have on battery performance and safety.

Australia’s first lithium-ion battery manufacturer, Energy Renaissance, has received a half million dollar grant to develop its pilot manufacturing facility in the state’s Hunter region.

The number of residential home batteries in Queensland has doubled while electricity bill cost concern has almost halved, found the “biggest survey of its kind” conducted in the state. The survey’s findings, which set to be released in full later this week, were summarised this morning by Queensland Minister for Energy, Renewables and Hydrogen, Mick de Brenni, at a virtual event.

Compressed air energy storage is not exactly a new technology, but recent months have seen this older storage technology with a new lease of life as intermittent renewable sources of energy come to the fore. Recent large-scale air storage plants have been announced in North America and the Middle East, and now some of that hot air has arrived on Australian shores.

A 125 kW/500kWh storage unit will be tested by China’s National Photovoltaic and Energy Demonstration Experimental Center. The storage system will be provided by Canadian specialist VRB Energy.

The Australian Energy Market Commission has unveiled new rules designed to better integrate both small and large-scale batteries into the National Electricity Market and provide financial rewards for market participants who can respond at lightning-quick speeds to provide stability when the grid is under stress.

The Australian National University today opened its Distributed Energy Resources Lab, dedicated to researching and testing technologies including batteries, solar panels and electric vehicles which it says will “underpin the energy grids of the future”.


Although self-consumption of solar power is the optimal economic approach, the expense of household batteries at present outweighs the increased ability they offer to use electricity generated on the roof. Whether aggregated ‘virtual batteries’ offer better returns is an open question, due to lack of electricity company transparency.

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.