Redflow batteries at Swansea University in Britain

Swansea University chooses Redflow flow-batteries for its renewable energy Active Building demonstrator

Swansea University, a research-led British university, has purchased Redflow’s unique ZBM2 zinc-bromine flow battery technology as the energy storage backbone for its Active Building demonstrator -– an award-winning classroom that generates, stores and releases solar energy at the point of use.

The microgrid is built around 120 kWh of Redflow batteries and is supplied with building-integrated, thin-film photovoltaic solar panels, as well as a solar wall that supplies the warm air to a heat-pump for space and water heating.  Since being built, the classroom has proven the Active Buildings concept by generating more energy than it has used over an annual cycle, and during high solar summer months, the system will return power to the local electricity grid.

Redflow’s small 10 kWh flow battery units are the only commercially available flow battery energy storage system that allowed accurate sizing for the 120 kWh system. Additionally, the Redflow battery operates “out of the box” with the Victron inverters and controllers that provide the power conversion for the Swansea University minigrid.

Tom Griffiths, Technology Transfer Fellow (Smart Systems), said Swansea selected the Redflow technology because of its ability to deliver 100% of the rated system energy every day, without degradation in capacity over a long – 10 year – life. “These characteristics were crucial considerations for us, and our application requires battery discharge duration of 4-8 hours depending on the time of year, making Redflow’s flow battery the ideal fit for our requirements in comparison to more conventional lead-acid or lithium alternatives.”

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Off-grid WA orchard beats bushfire blackouts with Redflow batteries

After losing power as the night horizon glowed orange with bushfires last summer, WA orchardists Jeff and Kerry Murray installed Redflow batteries to take their property off-grid and make it energy-independent year-round.

Power outages have plagued the Murrays’ farm – called Kalyakool, a Noongah word meaning “forever more” – since they bought the 34-hectare property near Gingin, 90km north of Perth, in 1994.

Mr Murray said the threat from the December bushfire was “the last straw”. “Our water comes from two bores, so without power, we can’t get any water,” he said. “The summer fire didn’t get to us, but it impinged on us through the loss of power for a whole day, which was followed by multiple outages as they brought it back on. If fire does reach us, we need energy to run the pumps to defend our property, which is why the bushfire was the last straw for us.”

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Redflow MD & CEO Tim Harris

Coronavirus disruption has minimal impact on Redflow reports MD & CEO Tim Harris

In light of the World Health Organization’s declaration earlier this week that the COVID-19 coronavirus is a pandemic, I wanted to take a moment to let you know Redflow’s position and our response.

Overall, the widely reported disruption caused by the virus is having a minimal impact on Redflow’s operations. Redflow continues to operate its Thai manufacturing facility and we have a sufficient level of finished batteries to fulfil current orders and immediate sales opportunities. Our manufacturing facility in Thailand continues to operate on a business-as-usual basis under the supervision of our long-time Operations Manager, Praveen Kannankai.

Redflow currently maintains a healthy level of battery stocks in Thailand as well as in our main markets of South Africa and Australia. These finished batteries are available for immediate delivery while our Thai factory has a sufficient level of raw materials to fulfil our current manufacturing plans. Although we source materials from around the world, including China, we do not anticipate any significant impact from coronavirus disruption over the short to medium term. We continue to monitor the situation closely and remain in close contact with key suppliers. While the recent COVID-19 outbreak has delayed business development opportunities in China, Redflow plans to resume discussions with potential partners and customers at the appropriate time.

Given the dynamic nature of the virus and a prudent approach, we have undertaken appropriate travel protocols and contingency planning to maintain business operations if the situation deteriorates further.

We are monitoring the situation daily and will continue to implement any necessary measures to help protect our people and our business against the spread of the coronavirus, while we continue to execute on our growth strategy.

Thank you for your ongoing support of Redflow.

Kind regards
Tim Harris
Redflow Managing Director & CEO

Focused growth strategy in telco vertical underpinned record half-year revenue

Redflow Limited (ASX: RFX) is pleased to announce its results for the six months ending 31 December 2019 (H1 FY20), a period where Redflow gained further traction with its focused growth strategy in the telecommunications vertical.

Revenue was up 282% to $1.4 million (H1 FY19: $376k) as sales momentum built with follow up orders delivered to strategically important telecommunications customers, including Vodacom (through telco partner Mobax in South Africa) and the Rural Connectivity Group (through new partner Switchboard Services Limited in New Zealand).

At the same time, Redflow has been progressing new opportunities with additional telecommunications companies in its target markets that are expected to underpin strong sales growth in the short to medium term.

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Redflow batteries deliver 24-hour power and save $10,000 in diesel per year for off-grid WA station

Yallalong Station, a 348,000-hectare cattle property 650km north of Perth, has deployed a Redflow battery-based energy storage system to boost its energy independence and save thousands a year in diesel costs.

The cattle station, in the dry Murchison region north east of Geraldton, can swelter for months in summer temperatures higher than 40 degrees Celsius – sometimes as high as 48 degrees Celsius.

Yallalong Station owner Lyndon Brown said a 24-hour power supply was essential to attract staff to work at this remote location. “If you want people to live out there in those isolated places, you do need 24-hour power to run all your fridges, air-conditioning and comforts of life that they expect,” he said.

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CEO Video: Redflow’s latest 4C statement shows progress on executing the company’s growth strategy

Redflow CEO and Managing Director Tim Harris provides an update on how the business is performing, in a video released after today’s 4C quarterly cash flow report.

Mr Harris said Redflow had made further progress executing on its growth strategy during Q2.  “Revenue for the quarter was steady, which means that revenue for just the first half of FY20 will exceed the total revenue generated by our business in FY19,” he said. 

“I am also very happy to announce that we received our R&D tax rebate of over $2m which is a 15% increase over the previous year. Q2 was also the quarter where we were able to name two key strategic end customers, the Rural Connectivity Group (RCG) in New Zealand and Vodacom in South Africa.  Both have begun deploying our batteries.”

Other highlights from the past quarter include:

  • Attractive growth opportunities for Redflow batteries in South Africa and sub-Saharan Africa due to increasingly severe power outages in South Africa and frequent theft or vandalism of lead-acid batteries 
  • Delivery of Redflow’s unique, compelling solution for the telco market, based on its long duration batteries, with an ability to work in harsh conditions, and anti-theft features
  • A remote WA deployment of Redflow’s temperature-tolerant batteries, which are well-suited for the Australian rural community requiring an energy storage solution that can thrive in harsh conditions without the fire risk of other chemistries.

“In summary, we have made very good progress over the last 3 months and are very focused on converting initial orders with key customers into run rate business and generating new business with new customers,” said Mr Harris.

Click below to view the full video presentation by Tim Harris (length five minutes 48 seconds).

Vodacom deploys Redflow batteries to reduce theft and vandalism at South African mobile tower sites

One of Africa’s leading telecommunication companies Vodacom is deploying Redflow zinc-bromine flow batteries at mobile base stations in South Africa to reduce the vandalism and theft associated with lead-acid and lithium batteries. 

In a statement to the Australian Securities Exchange (ASX), Redflow reported that Vodacom’s new use of Redflow ZBM2 batteries specifically to manage battery theft and vandalism is a significant commercial development for Redflow in the large African market. 

This development provides meaningful external validation by a major player in the African telco market of Redflow’s belief that the ZBM2 battery’s resistance to theft and vandalism is an important competitive advantage for the product in the large African market and other emerging economies. 

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Vodafone uses Redflow batteries to store energy for remote telecom tower site in New Zealand

Zinc-bromine flow batteries from Redflow have stored and supplied more than 50 MWh (megawatt-hours) of renewable energy for a Vodafone telecommunications tower in New Zealand during the past three years.

Vodafone NZ’s Kauaeranga Valley tower site is located east of Thames by the Coromandel Forest Park in a remote part of New Zealand’s North Island, Sites such as the Kauaeranga Valley are so remote that it is unfeasible to lay or connect power cables. Alternative power sources, such as diesel generators, come with their own set of challenges including a second generator for redundancy, high maintenance costs and expensive and difficult diesel deliveries.

Vodafone New Zealand has met the challenge of bringing broadband connectivity to the remote site, where no grid power is available, by deploying a best-in-class green energy cell site, powered by Vertiv’s Hybrid Energy Storage System (HESS) with energy stored by Redflow batteries. The site, which contains five Redflow ZBM2 zinc-bromine flow batteries, has improved mobile phone coverage and high-speed wireless broadband for thousands of locals and visitors in the region.

Australia’s Chief Scientist visits Redflow battery-powered early childhood centre at Knox City Council

Australia’s Chief Scientist Dr Alan Finkel recently visited the Knox City Council’s state-of-the-art Children and Family Centre at Wantirna South in Melbourne to learn about the adoption and operation of Redflow zinc-bromine flow batteries which provide energy to the Centre.

Knox City Council has built two state-of-the-art early years facilities in Melbourne’s outer east – one at Wantirna South and the other at Bayswater – designed to last for 100 years, with leading-edge insulation, power conservation and renewable energy systems. 

Each Knox Children and Family Centre contains 18 Redflow ZBM2 zinc-bromine flow batteries – capable of storing 180 kilowatt-hours (kWh) of energy at each site – to ensure its renewably-sourced energy is available around the clock. Combined with 100 kilowatts peak (kWp) of solar panels on the roof of each building, Knox City Council expects this renewable energy system will save hundreds of thousands of dollars a year in energy costs. 

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Rural Connectivity Group chooses Redflow for off-grid energy storage in New Zealand

The New Zealand Rural Connectivity Group (RCG) has chosen Redflow zinc-bromine flow batteries to store energy in off-grid telecommunication sites in remote rural locations. Commercial negotiations to establish a direct relationship between RCG and Redflow to purchase batteries are now underway.

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