Technology

A parliamentary inquiry has been told Australia’s ageing transmission network “urgently” needs upgrading to deliver new solar PV and wind power to cities as the nation’s transition to renewable energy generation continues to accelerate.

The 3 kW inverter has an efficiency of 95% and features a surge power of 9000 VA. According to the manufacturer, the device is compatible with mainstream lead-acid and lithium-ion batteries.

The Energy Security Board’s market reforms have come under fresh scrutiny after ministers met last week under a veil of secrecy, apparently stirring deep rifts between federal and state ministers and other stakeholders. While it remains unclear what the Board’s proposed capacity market, dubbed by some as ‘coal-keeper’, might look like, Dan Cass, who leads energy policy at the Australia Institute, told pv magazine Australia as long as Angus Taylor isn’t steering, he’s optimistic that state governments and the ESB could work towards a reasonable outcome.

A German research team has developed a photovoltaic-electrochemical device for alkaline water electrolysis that can be linked to battery storage. The proposed system configuration can not only smoothen out the PV power fluctuations and facilitate power coupling, but also improve solar to hydrogen efficiency.

The battery was built with a new catholyte and a symmetry-breaking strategy, which consists of changing the symmetry of the redox-active organic molecules instead of using the common approach of attaching a hydrophilic functional group.

For the first time in the history of our national energy market, solar generated more electricity than coal, providing 41.4% of the national market on Sunday, while coal accounted for 41.2%.

The comparison of two solar cladded roofs in Sydney, one bare beneath its panels and the other adorned with native grasses and plants, has found the panels on the green roof were, on average, 3.63% more efficient, producing an average daily output 13% greater than the conventional roof. The improvements are believed to stem from the lower temperatures on the green roof, thanks to its plants – which also provided a plethora of additional benefits.

Carbon never goes away, says Associate Professor Tianyi Ma, but if industrial carbon-dioxide emissions can be cleanly, renewable catalysed into chemicals and fuels that we need, we can reduce the overall GHG burden on the earth’s atmosphere.

Developed by the Korea Institute of Energy Research (KIER), the “non-destructive” technology is claimed to enable the recovery of 100% of a module’s glass and to allow the reuse of silicon for producing new solar cells with an efficiency of 20.05%.

As technology redefines the delivery of network services, grid operators in remote areas the world over are searching for more cost-effective and reliable alternatives to traditional poles and wires. Standalone power systems are the solar application that is at the forefront of the switch, and they’re ramping up fast.