Technology and R&D

Researchers from The University of Queensland have developed a new nanotechnology that they say more than doubles the lifespan of high-voltage lithium-ion batteries, paving the way for higher density and lower-cost energy storage solutions.

Electric vehicle batteries are packed with energy, with additional battery density and efficiency working to quell range anxiety for drivers. But with that capability lingers a concern from some that EVs may pose a fire risk and a challenge for first responders in the event of accidents. Western Australia’s Professor Ray Wills from Future Smart Strategies bought his first EV in 2012 and argues that in terms of safety, EVs remain an easily superior vehicle, and even the tiny fire risk that exists is an ever-diminishing issue.

Developed by researchers in Spain, the battery uses renewable electricity to melt low-cost metals such as silicon or ferrosilicon alloys to produce and store latent heat, which is in turn used by a thermophovoltaic generator to produce power. According to its creators, the device may store electricity at a cost of €10 per kilowatt-hour (AU$14.6/kWh) for a 10MWh system.

Nextracker has today launched its new terrain-following, single-axis tracker built specifically for projects on sloped, uneven, and challenging sites. Nextracker believes its new NX Horizon-XTR line will be market-shaping, especially in countries like Australia where opposition to land disturbances of utility-scale solar is growing.

Vattenfall, SSAB and LKAB have reached the halfway point in the construction of a rock cavern storage facility in a coastal city in northern Sweden. The 100-cubic-metre facility is being constructed 30 metre below ground and will begin storing green hydrogen next year.

Pure Hydrogen has entered into a partnership with Australia’s largest privately-owned waste management company, JJ Waste & Recycling, to build what it claims will be the country’s first ever hydrogen fuelled garbage truck.

Construction of the Kogan Renewable Hydrogen Demonstration Plant in Queensland’s Western Downs region is expected to start by September, with government-owned CS Energy, the plant’s operator, having finalised the EPC contract with IHI Engineering Australia to construct the project.

Elsewhere, the Danish government announced a plan to deploy up to 6 GW of electrolyser capacity by 2030 and Germany and Norway agreed to conduct a feasibility study on large-scale hydrogen transport, including via pipeline.

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)

Australian solar technology startup SunDrive has announced “a breakthrough” in mass production compatible heterojunction technology after recording an efficiency result of 26.07% with a silver-free, commercial-size silicon solar PV cell.