Technology

Australian researchers have unveiled hydrogenation technology to reduce light and elevated temperature-induced degradation in Czochralski silicon PERC solar cells. The developers say the process can minimize degradation without sacrificing performance in cells and modules.

An energy deal struck between the Morrison and Berejiklian governments that will see more than $2 billion invested to increase gas supply and reduce greenhouse gas emissions from the electricity sector has prompted a flurry of reactions that boil down to two conflicting interpretations of its purpose.

In yet another confirmation of a dramatic drop in spending on large-scale renewables in Australia, a new analysis by the Clean Energy Council reveals a fall from 51 projects worth $10.7 billion in 2018 down to 28 projects worth $4.5 billion in 2019. Mounting regulatory risks, under-investment in transmission and policy uncertainty are the main reasons behind investment slow-down, which is set to put greater pressure on reliability and power prices as Australia’s old coal-fired power stations continue to close.

Scientists at the University of Southern Denmark working with sodium-ion batteries found that a new electrode material incorporating iron, manganese and phosphorous could increase both the power and capacity of the batteries.

Germany-based Wirtgen Invest has entered the large-scale Aussie solar market with the purchase of the 140 MW Glenrowan West Solar Farm, a significant project considering its location in one of the 2020 Integrated System Plan’s Renewable Energy Zones.

Solarwatt’s Vision glass-glass solar PV modules have pushed the technology’s resilience even further after passing Aussie cyclone testing in Darwin. The success arouses new attention to the competing riders on the bifacial wave, glass-glass and backsheets.

Resources giant Fortescue Metals will invest $US450 million ($668 million) in the next stage of its Pilbara Energy Connect program to combine 150 MW of gas-fired generation, 150 MW of solar PV and a grid-scale battery. The hybrid generation project will provide low cost power to the Iron Bridge magnetite project currently under construction.

Singapore-based developer Vena Energy has announced that it will soon begin construction of Queensland’s largest grid-scale battery near Wandoan in the Western Downs. The 100 MW/150 MWh project will be delivered under a 15-year power purchase agreement with Australia’s biggest power producer, AGL.

With solar grade polysilicon prices having plummeted in recent years, cutting down on consumption of the material has not been a priority. But strategies exist and significant savings can be made through deploying thinner wafers that use less silicon, insists a new paper published by MIT and NREL. And as manufacturers are increasingly hitting dead ends on other routes to cost reduction, this option could be back on the table for many.

After a leisurely break over the holiday period, I have returned to my desk to get right back into the analysis of what I think will be a pretty exciting year for the NEM. Connection difficulties, commissioning delays and stubbornly high storage costs point to uncertainty on the supply side, while strong rooftop uptake continues to whittle out daytime operational demand.