Sustainability

Australia has paid just 38% of its “fair share” towards the internationally agreed climate finance target. The revelation speaks to the issue of fairness – a key topic at COP27, currently underway in Egypt. But Australia’s premier renewable energy event offered little hope that questions of equity and deep sustainability are being considered here, even by the architects of our own transition.

While not one of the big five-year-cycle COPs like Paris or Glasgow, COP27 is still hugely important, write Wood Mackenzie analysts. The fallout from the conflict in Ukraine has tilted the precarious balance of the energy trilemma – sustainability; affordability; security – towards the latter. But despite this temporary setback, some progress should still be possible.

The US National Renewable Energy Laboratory (NREL) says in a new report that PV module lifetime extensions should be prioritised over closed-loop recycling to reduce demand for new materials.

Sydney’s Northern Beaches Council has seen its energy costs slashed by switching to renewables.

Speakers at the CEC All-Energy conference in Melbourne have prioritised the built environment as ripe for embedding higher efficiency and sustainability standards.

A team of researchers from the University of New South Wales (UNSW) has proposed a cost-effective way to recycle silicon solar panels. Their process consists of module deframing, laminate shredding and material concentration using electrostatic separation, reducing their original weight by 2% to 3%.

The Victorian government has announced an ambitious target to reach 95% renewables by 2035, to end the state’s reliance on coal generation, and to establish a publicly owned corporation that will see the state hold a controlling stake in new renewable energy projects.

University of New South Wales researchers have teamed up with Tindo Solar to develop a line of semi-transparent modules, specialised for agrivoltaic cropping, which will use nanoparticles tuned to capture different parts of the light spectrum. “There is evidence you don’t need the full spectrum and some plants will work even better if you provide them with only part of the spectrum,” project lead and UNSW Associate Professor Ziv Hameiri tells pv magazine Australia. Crucially, he says, the project will also open a line between farmers, solar researchers and industry, creating the potential for mutual benefits.

Shell Energy Australia has been awarded $9.1 million from the Australian Renewable Energy Agency to recruit at least 40 commercial customer sites, including shopping centres and supermarkets, to begin shifting how and when they use electricity – a demonstration of the potential of flexible demand.

A 2.8 GW solar-powered green hydrogen export project being developed on the Tiwi Islands in the Northern Territory has taken the next step towards securing environmental and planning approval with developer Provaris Energy lodging an assessment referral with the federal government.