Redflow has reported a significant rise in revenues from its zinc-bromide flow batteries but the Australian company noted that it expects to remain “cash-flow negative for some time”.
From data centres to long-duration storage for the grid, zinc looks increasingly likely to play a part in the energy transition, writes Dr Josef Daniel-Ivad from the the Zinc Battery Initiative.
Germany company Voltstorage, claiming to be the only developer and maker of home solar energy storage systems using vanadium flow batteries, raised €6 million (US$7.1 million) in July.
Australian stock exchange-listed flow battery manufacturer Redflow has scored a second order for its devices from the Rural Connectivity Group, a New Zealand-based telecommunications company.
“The bottom line is that this is a good business decision. We will get back our money in eight to 10 years at the current price of power. As the price of energy goes up, we’ll pay it back even quicker.”
Australia-headquartered flow battery maker Redflow is continuing with a strategy of selling devices into the telecoms sector, agreeing on a second deal to repower mobile phone towers for a South African provider.
‘Hybridising’ energy storage systems by combining lithium-ion and flow batteries, shares the power and energy application workloads between the two types of battery and can prolong their life expectancy, a representative of Thai engineering firm TSUS Group has said.
