Technology

A bp Australia study partially supported by the Australian Renewable Energy Agency has confirmed the technical feasibility of large-scale renewable hydrogen and ammonia production for export in Australia, particularly in Western Australia’s Mid-West. However, the development of such an industry, says bp, requires strong government policy support, including a carbon price or emissions cap.

Researchers at the Indian Institute of Technology Bombay (IIT Bombay) have devised a method that increases hydrogen production up to three times while significantly lowering the energy required for water electrolysis.

Australian giant AGL Energy plans to build what will be the world’s largest ‘grid-forming’ battery in South Australia, deploying technology so novel that it yet to be clearly regulated in Australia. “Trialling something like this on the grid at this scale hasn’t been done before anywhere in the world,” Josh Birmingham, Director of Large-Scale & Project Solutions at SMA Australia, told pv magazine Australia.

Both Victoria’s and Queensland’s state governments are moving on their renewable energy zones (REZs) with tight deadlines looming for hopeful projects in Victoria, while further north the government is eager to hear from local communities.

Scientists in Canada evaluated the potential of a lesser-known approach to boosting solar generation efficiency. Thermionics uses heat from the sun to generate electricity, and could be combined with photovoltaics to create devices with better than 40% efficiency from a single junction. In their evaluation, the scientists find promising pathways for further research, despite a mountain of challenges that will need to be overcome.

Australian giant AGL Energy will soon own the world’s largest ‘grid forming’ battery, with construction on its 250 MW/250 MWh big battery to begin later this year at Torrens Island, just north of Adelaide in South Australia. The battery will be delivered by Finnish technology company Wärtsilä with inverters supplied by German company SMA Solar Technology.

Scientists in India fabricated a redox flow battery based on zinc and iron that showed strong storage characteristics and no signs of degradation over 30 charge-discharge cycles. The battery also showed no signs of dendrite formation, overcoming one of the key hurdles for redox-flow batteries based on these low-cost, abundant materials.

The world authority on climate change, the Intergovernmental Panel on Climate Change, has issued its Sixth Assessment Report, the most scathing yet, declaring our current trajectory of global warming will reach 1.5C by 2030. The report makes clear the heightened climatic effects of climate change will only increase, with the transition to renewable energies our only hope.

South Australia is a global hero for its demonstration of a rapid transition to renewable generation. But as renewables supplied more than 60% of the state’s electricity, and pushed out coal and even gas-fired generation, cracks appeared in the system strength and inertia required to keep the grid reliably running. ElectraNet has deployed old, clean-running technology — synchronous condensers — to smooth the gaps.

Researchers in China have developed a smart solar window tech based on a photovoltachromic device that is able to achieve a high pristine transmittance and to be self-adaptable to control indoor brightness and temperature. The device was assembled via a full solution process in an architecture incorporating glass, a fluorine-doped tin oxide (FTO) layer, a perovskite-based PV cell, an electrochromic gel, another FTO layer, and glass.