Redflow

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Redflow Limited, a publicly-listed Australian company (ASX: RFX), produces small 10kWh zinc-bromine flow batteries that tolerate daily hard work in harsh conditions. Marketed as ZCell and ZBM2, Redflow batteries are designed for high cycle-rate, long time-base stationary energy storage applications in the residential, commercial & industrial and telecommunications sectors, and are scalable from a single battery installation through to grid-scale deployments. Redflow batteries are sold, installed and maintained by an international network of energy system integrators. Redflow’s smart, self-protecting batteries offer unique advantages including secure remote management, 100 per cent daily depth of discharge, tolerance of high ambient temperatures, a simple recycling path, no propensity for thermal runaway and sustained energy delivery throughout their operating life.

 

Redflow CEO Simon HackettRedflow CEO Simon HackettAustralian battery company Redflow Limited (ASX:RFX) has praised proposed new regulations that prioritise fire safety for the deployment of lithium-based batteries inside homes. 

Standards Australia has released final draft recommendations that require lithium-ion batteries - which are classified as “fire hazard class 1” - must not be installed inside a domestic dwelling, within a metre of any access or egress area or under any part of a domestic dwelling. There are no current Standards Australia regulations for in-home battery installations.

This draft standard follows Clean Energy Council industry rules issued last year, which state: “Some lithium-based batteries can fail due to internal overheating, in a process known as ‘thermal runaway’. The normal chemical reactions within the battery during charging are exothermic (heat-generating).

“If this heat is not able to dissipate, or the battery is overcharged for a long duration, the rate of chemical reaction can then speed up, which in turn increases the battery temperature further, in an ­increasing cycle until the battery is physically damaged ... Once this happens, there is a risk of fire and/or rupture of the battery, with emission of toxic material.”

Redflow CEO Simon Hackett said the safety-first principle should be a priority for the rapidly growing energy storage industry. “While manufacturers say modern lithium-based batteries are designed not to overheat, it only takes one poorly designed or deployed battery to catch fire at night to cost lives,” he said.

Redflow CEO Simon Hackett with Redflow LSBRedflow CEO Simon Hackett with LSBRedflow CEO Simon Hackett has commended today's announcement that the South Australian Government has awarded a contract to deploy a 129 megawatt hour (MWh) battery farm to help solve the State’s power problems.

Mr Hackett said the ambitious Tesla project demonstrated the growing maturity of energy storage systems. “We believe that batteries have an integral role to play in the successful exploitation of renewable energy sources,” he said.

"Elon Musk’s promise to deploy 129 MWh of batteries for SA in 100 days is a big challenge, even for a US$50 billion company like Tesla. As a far smaller company, Redflow is not yet configured to produce that volume of batteries in that timeframe, so we will continue delivering our ZBM2 and ZCell batteries to telecom and residential customers in Australia and overseas.

"This is not a competition between Tesla and other battery companies, it's about renewables and energy storage demonstrating their capacity to technically and affordably replace fossil fuels. I look forward to seeing a system of that scale running on the South Australian grid as soon as possible.

"This project sets South Australia up as a world leader in the use of battery storage with renewable energy - a true signpost of the future of the world. I'm thrilled about that. The global energy storage market is huge and essentially it is largely untapped. This project will act as a validation point and an accelerant of change.

"Redflow is well positioned to be a part of the solution in markets appropriate to its technology. Every battery manufacturer is likely to be busy for the foreseeable future, all working to their respective technical strengths.”

Andrew Kempster with Photon Farmer Jan BorgmanIn a Netherlands first, a Dutch dairy farm has deployed six Redflow ZBM2 zinc-bromine flow batteries to store self-produced solar energy that can support its milk production with sun-harvested energy.

Dubbed the Photon Farmer, the project aims to store solar energy for the farm’s use with six 10 kilowatt hour (kWh) ZBM2 batteries, the first Redflow deployment in theNetherlands.

Located at Vierakker in the eastern Netherlands, the 57.5-hectare family-owned farm currently stocks 110 diary cows. Due to public importance, the European Union is co-financing the deployment, which could revolutionise energy supply by supporting businesses to become energy independent.

ICL, a leading global producer of bromine and supplier of the advanced zinc-bromide electrolyte used in ZBM2 batteries, proposed Redflow for the Photon Farmer project because of the ground-breaking advantages of zinc-bromine flow batteries over older battery types such as lithium and lead-acid.

Redflow Global Sales Director Andrew Kempster, who is visiting the Netherlands this week for the project’s launch, said the Photon Farmer had produced energy with solar panels for several years. “The battery project is seeking the best business model for future local sustainable energy production, including energy storage in a battery,” he said. “Our zinc-bromine flow battery technology is well-suited for this project.”