Technology

Australia’s inventories of critical materials for batteries have seen major increases recently, with vanadium up 23%, lithium up 8%, rare earths up 4% and platinum group elements up 185% in the year to December 2020.

The device is based on a standard, two-electrode electrochemical cell containing conductive polymers, a carbon-graphene hybrid, and a non-flammable liquid electrolyte. The battery cells were tested to perform for 12,000 cycles at 100% depth of discharge.

Academics from MIT and Stanford who have posited a new production method for perovskite solar cells have also developed a machine learning system which benefits from the experience of seasoned workers – and they’ve posted it online for anyone to use.

Energy Dome’s emission-free energy storage method uses carbon dioxide in a closed loop charge/discharge cycle that can store and dispatch renewable energy onto the grid over periods from four to 24 hours.

Australia’s most powerful energy industry participants have actively resisted the move to a low-carbon economy. Now, the country known as a sandbox for technology has become a sandbox for a new model for decarbonisation – one which has seen billionaires and giant fund managers sidestep politics to use the free market in strategic and potentially disruptive ways. pv magazine Australia’s Bella Peacock reports.

French renewable developer Neoen has signed a seven year agreement with energy giant AGL to provide 70 MW / 140 MWh of ‘virtual battery capacity’ in New South Wales.

Increased demand and continual outages at gas and coal power plants in Queensland have seen a rise in the occurrence of extreme price spikes. The timing of these spikes, typically at peak hours between 5pm and 8pm, are seeing solar revenues soar just as the sun is setting.

To encourage industry to consider the battery mineral opportunities currently sitting in neglected heaps around the country, Geoscience Australia and its partners are developing an Atlas of Australian Mine Waste. The public database hopes to highlight the opportunity in reprocessing mining waste for new markets.

Water-from-air technology company Aqua Aerem’s Desert Bloom green hydrogen project received Major Project Status from the Northern Territory Government last year, now it has announced a partnership with Japanese energy giant Osaka Gas which not only brings the 10GW project closer to reality, but has also seen the company boost its ambitions to 20GW in light of “quickly developing demand.”

US researchers have proposed the use of hydraulically fractured oil and gas wells to store renewable energy via compressed natural gas, with the levelised cost of storage potentially coming in at US$70/MWh and US$270/MWh. They said wells could also be used to store other renewable gases such as carbon dioxide or hydrogen in the future.