Distributed Storage

The choice of battery storage technologies in support of solar energy supply is broadening to suit a variety of emerging applications. VSUN has just made its first power play for vanadium-redox-flow batteries in the off-grid residential market.

Mobile electricity storage systems (MESS) – batteries that are charged and then transported – could offer one of the best scenarios for electrification across the vast Indonesian archipelago, which spans more than 17,000 islands. A team at the University of Indonesia is working with multiple government agencies to bring the idea to scale and provide affordable electricity to rural Indonesians.

Following on from Social Energy’s launch in Australia late last year, the UK company has teamed up with SolaX to offer a rather appetising feed-in-tariff deal to go with a combined solar and energy storage system.

AGL, one of Australia’s biggest polluters, is working towards net-zero emissions by 2050 and new relevance in a renewable-energy-powered world. Think big batteries to replace the spinning reserve of some coal and gas generators, and digital management of its customers’ distributed rooftop resources.

Scientists in the U.S. examined the use of different conductive filler materials in a lithium-ion battery electrode, finding that adding single walled carbon nanotubes to a nickel-cobalt-manganese cathode resulted in better electrical conductivity and higher rate capability for the overall battery. The results, according to the group, could provide new insights into design of high power, high energy battery electrodes.

On Tuesday 13th October 2020 Queensland’s electricity spiked from approximately $25/MWh to $15,000/MWh (the current market price cap) in response to a tripping incident involving the constraint of 11 solar farms and one wind farm. The event is being seen as illustrative of just what needs to be addressed in the design of NEM 2.0.

Australian electricity wires are awash with sunshine, such that network operators have threatened to up the drawbridge on further rooftop connections, while limiting rooftop PV exports to the grid. But data streams hold the key to unlocking surprising existing capacity, stabilising voltage, and living the Aussie dream.

An International Energy Agency report led up by Rolf Frischknecht from Treeze in Switzerland and under the joint project management of the University of New South Wales’ José Bilbao has measured the lifecycle emissions of both residential solar PV with battery storage and gas-generated grid electricity. The results are not particularly surprising, only the Morrison Government’s ongoing obduracy is.

Residential battery manufacturer Sonnen has unveiled a new power tariff program which signals a major shift for the Australian market.

Australian mining and resource technology company TNG Limited has set up a subsidiary, TNG Energy, to run point on the advancement of its green sector ambitions through the use of its high-purity vanadium pentoxide deposit to make vanadium redox flow batteries for off-grid solutions.