Technology

Underwater gravity energy storage has been proposed as an ideal solution for weekly energy storage, by an international group of scientists. The novel technology is considered an alternative to pumped-hydro storage for coasts and islands without mountains that are located close to deep waters, and may also be interesting for PV if used to store green hydrogen.

France’s Revolt Energy Green has developed a flexible solar+storage solution for one-off events, construction sites, and different kinds of off-grid applications. It has also developed a mobile hydrogen solution.

Smart energy software company Evergen will provide an energy management platform as part of a net-zero energy emission terrace homes pilot at Carseldine Village, north of Brisbane.

The promise of solar windows have captivated scientists and engineers for decades. Now, West Australian company ClearVue says it not only has a fully transparent, scalable, industry-ready solar window in production, but it’s just 18 months away from cracking 5% efficiency, thanks to a research partnership.

New reports and modelling has led TasNetworks to further push its largest of four possible Marinus Link versions. The largest, a 1,500 MW interconnector between Tasmania and the Australian mainland, is being shown to provide benefits across the entire NEM through grid stability and downward pressure on wholesale electricity prices. But there is still some discussion about who should pay for it.

Researchers in China have built a PV-powered air conditioner that can store power through ice thermal storage. The performance of the system was evaluated considering operating efficiency and stability and the scientists found that a device relying on a variable-speed compressor and an MPPT controller showed very good ice-making capability.

Spanish renewable energy company Acciona is testing four second-life batteries with a combined capacity of 130 kWh at its 1.2 MW experimental solar park in Tudela, in the Spanish region of Navarra.

The contentious two-way pricing reform proposed by the AEMC, dubbed the ‘sun tax’, is based on the understanding that solar is a plaything of the rich. In fact, the inverse may be true, according to a new paper published by the Victoria Energy Policy Centre. But Vinnies’ research manager Gavin Dufty, an instigator of the rule change, told pv magazine Australia such analysis misses the point, branding it ‘myopic’.

Rice University engineers produced “near-perfect” 2D perovskite crystals for photovoltaic applications, grown from seeds.

A French start-up has developed a concrete flywheel to store solar energy in an innovative way. Currently being tested in France, the storage solution will be initially offered in France’s overseas territories and Africa.