Remote home near Quindanning powered by Redflow battery

Redflow battery powers off-grid WA home, avoiding $100,000-plus in costs to connect to the power grid

A single Redflow battery is powering a “dream home” near Quindanning in south-west WA, saving its owners the six-figure cost of connecting it to the electricity grid.

In 2017, Geoff and Roz transported a derelict building made up of two hexagonal pods to their rural property in the south-west of Western Australia, aiming to create their dream retirement home.

With picturesque valley views towards the little town of Quindanning, about 170km from Perth, the 80-hectare property sits high on a ridge surrounded by native bushland. But the difficult-to-access property’s location meant the six-figure sum to connect to the power grid was cost-prohibitive. Going off-grid was the obvious solution.

Redflow partner TIEC, through its RBSS (Renewable Battery Storage Solutions) division, was commissioned to design a single-battery energy storage system that could meet the couple’s immediate needs and expand when their budget allowed. Continue reading “Redflow battery powers off-grid WA home, avoiding $100,000-plus in costs to connect to the power grid”

Longevity Medical Centre saves $10,000 a year as Redflow batteries beat outages

Since installing Redflow batteries in early 2017, Melbourne’s Longevity Medical Centre has avoided approximately $10,000 a year in business disruption costs by having a guaranteed power supply.

Based in Doncaster East, Longevity Medical Centre has a 20 kilowatt-hour (kWh) Redflow energy storage system, with two 10 kWh ZCell batteries and two Victron MultiPlus inverters, harvesting energy from a 5.3 kilowatt-peak (kWp) solar array on the roof of its multi-storey premises. Since it was installed in the first half of 2017, the Redflow battery system has stored with more than nine megawatt-hours of energy.

Founding owner James Bishop said he estimated the Redflow batteries were saving the medical centre about $10,000 a year by avoiding power outages. “It doesn’t matter if the outage is for one minute or one hour, the disruption of getting everything working again would cost us about $2000 per occurrence,” he said.

“With four to five power outages a year, that’s $10,000 a year we’ve saved, plus the reduced energy cost of time-shifting stored solar energy. The bottom line is that business is hard enough without having power fluctuations. Every business buys insurance to offset the risk of disruption. Batteries give us insurance for our electricity supply which insurance policies fail to cover or cover poorly.” Continue reading “Longevity Medical Centre saves $10,000 a year as Redflow batteries beat outages”

Vodafone New Zealand uses Redflow batteries for remote energy storage on Coromandel Peninsula

  • Location: Vodafone NZ tower, Kauaeranga Valley, Coromandel Peninsula, New Zealand
  • Storage: Five ZBM2 zinc-bromine flow batteries (50 kilowatt-hours total storage capacity)
  • Redflow batteries have stored and delivered more than 50 MWh (megawatt-hours) of energy since 2016.

Vodafone New Zealand has met the challenge of bringing broadband connectivity to the North Island’s remote Kauaeranga Valley, 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. Located east of Thames, on the edge of the Coromandel Forest Park,  the Vodafone tower site, which includes 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. Continue reading “Vodafone New Zealand uses Redflow batteries for remote energy storage on Coromandel Peninsula”

Knox children centres cut 75% of energy costs in winter with solar PV and Redflow battery storage

  • Location: Wantirna South and Bayswater in Knox City, Melbourne, Australia 
  • 36 x ZBM2 batteries, storing 360 kilowatt-hours (kWh) of energy (18 at each site)
  • Inverter: 12 x 15 kilovolt-ampere (kVA) Victron Quattro inverter-chargers (six at each site)

When Knox City Council in Melbourne’s outer east built two state-of-the-art early years facilities in 2018, it designed them to last for 100 years, with leading-edge insulation, power conservation and renewable energy systems that can save hundreds of thousands of dollars a year in energy costs. As well as 100 kilowatts peak (kWp) of solar panels on the roof of each building, the Knox Children and Family Centres at Wantirna South and Bayswater each contain 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. The installation of the solar array and batteries is anticipated to save Council an estimated $110,000-$120,000 per annum at each facility, delivering an estimated $220,000-$240,000 in total annual savings. Continue reading “Knox children centres cut 75% of energy costs in winter with solar PV and Redflow battery storage”

Darling Building beats energy shortfall with Redflow

  • Location: Adelaide, South Australia
  • Storage: Six x ZBM2s (60 kilowatt-hours of energy storage)
  • Inverter: Three-x Selectronic SP Pro 7.5 kilowatt (kW) inverters, delivering three-phase power.

Award-winning architecture firm Williams Burton Leopardi has deployed a scalable energy storage system based on Redflow’s ZBM2 zinc-bromine flow batteries to guarantee energy supply for its newly renovated Darling Building in central Adelaide. With the local electricity grid incapable of supplying the building’s peak power needs during summer and facing hundreds of thousands of dollars in extra costs to use natural gas, Williams Burton Leopardi has successfully deployed six ZBM2 batteries to store off-peak power and feed it into the building when required. Continue reading “Darling Building beats energy shortfall with Redflow”

ZCell storage system cuts home power bill by 80%

  • Location: College Park, South Australia
  • Storage: 2 x Redflow ZCell zinc-bromine flow batteries, with 20 killowatt-hours (kWh) storage
  • Inverters: 2 x Victron MultiGrid 48/3000/35-50 battery inverter-chargers

South Australian John Altree-Williams has seen the summer quarter power costs for his Adelaide house plunge by 80 per cent from the previous summer after installing a Redflow-based energy storage system. As well as reducing electricity costs and improving energy independence by guaranteeing power supply during any grid blackouts, ZCell offers an Internet-enabled Battery Management System that allows Mr Altree-Williams to monitor closely his home’s energy usage patterns, enabling him to ensure it operates at peak efficiency so he can automate the system in future.

Continue reading “ZCell storage system cuts home power bill by 80%”

ZCell eliminates power costs for holiday house

  • Location: Mannum, South Australia
  • Storage: One ZCell zinc-bromine flow battery, storing 10 kilowatt-hours (kWh) of energy
  • Inverters: Three Fronius solar inverters and one Victron MultiGrid battery inverter

After Scott Hicks bought a holiday house at Mannum, on the Murray River in South Australia, he discovered that it came with huge power bills. The first summer power bill was $1700. Since deploying solar panels and a ZCell battery from Redflow, Mr Hicks has seen his electricity bills go into credit, despite being on a modest feed-in tariff. The ZCell battery also guarantees power supply for the house – which was previously disrupted by a pesky flock of white cockatoos chewing on the incoming powerlines. Continue reading “ZCell eliminates power costs for holiday house”

Technical documents and customer case studies

Redflow technical documents

Document nameDescriptionIssue date
Redflow ZBM2 Battery WarrantyRedflow ZBM2 Battery WarrantyJuly 2019
Redflow Battery Enclosure WarrantyRedflow Battery Enclosure WarrantyJuly 2019
Redflow BMS WarrantyRedflow BMS (Battery Management System) WarrantyJuly 2019
ZBM2 White PaperUnderstanding the Redflow batteryOctober 2018
ZBM2 and ZCell FAQAnswers to frequently-asked questions about Redflow batteriesOctober 2017
Optimal applications for the Redflow batteryOptimal Applications for the Redflow BatterySeptember 2019
ZBM2 DatasheetSpecifications and benefits of Redflow's ZBM2 zinc-bromine flow battery October 2019
ZBM2 Installation ManualRedflow ZBM2 (3kW/10kWh) Installation and Operation Manual V4.0July 2019
ZBM2 CE CertificateEC Declaration of ConformityJune 2020

ZBM2 customer case studies

Customer nameDescriptionRelease date
Case study: Quindanning home, WARedflow battery powers off-grid WA home, avoiding $100,000-plus in costs to connect to the power grid July 2020
Case study: Vodafone New ZealandVodafone New Zealand uses Redflow batteries for remote energy storageNovember 2019
Case study: Knox Children and Family CentresKnox children centres cut 75% of energy costs in winter with solar PV and Redflow battery storageAugust 2019
Case study: Williams Burton LeopardiWilliams Burton Leopardi Architects (Adelaide, South Australia) August 2018
Case study: Mossel Bay MunicipalityMossel Bay goes carbon neutral with Redflow (South Africa)January 2018
Case study: Bosco Printed CircuitsBosco beats power cuts with Redflow batteries (Johannesburg, South Africa) September 2017
Case study: Simon HackettHackett house powers through SA blackout (Adelaide, South Australia)September 2016

ZCell customer case studies

Customer nameDescriptionRelease date
Case study: John Altree-WilliamsZCell storage system cuts home power bill by 80% (Adelaide, SA)June 2018
Case study: Scott HicksZCell eliminates power costs for holiday house (Mannum, SA)May 2018
Case study: Bates familyQueensland home sets Redflow residential recordOctober 2017
Case study: Adrian ShandVictorian couple lives off-grid dream with RedflowOctober 2017
Case study: Alan NobleAlan Noble fires up ZCell for bushfire defences (Willunga, South Australia)October 2016
Case study: Conservation SAConservation SA showcases ZCell (Adelaide, South Australia)October 2016

Video showing how to install a ZBM2 battery

 

Redflow ZBM2 Installation Video

System Integrators

If you are a Redflow system integrator who would like more information about the ZBM2 installation video or installation collateral found here, please email sales@redflow.com or call +61 07 3376 0008.

 

Mossel Bay goes carbon neutral with Redflow

  • Location: Mossel Bay, Southern Cape, South Africa
  • Storage: Four ZBM2 zinc-bromine flow batteries, holding 40 kilowatt-hours (kWh) of energy
  • Inverters: Three Victron Quattro 48/10000 battery inverters and seven Victron MPPT solar inverters

Mossel Bay Municipality provides local government and electricity services to the South African city of Mossel Bay. Since deploying four Redflow ZBM2 batteries to support two buildings that house its Technical Services Department, the municipality has seen the facility become a net exporter of energy to the electricity grid, as the Redflow batteries intelligently store and supply energy generated by 114 solar panels on the roof. This has effectively made these two buildings carbon neutral and provided a model for how this energy storage technology can be used elsewhere in the community. Continue reading “Mossel Bay goes carbon neutral with Redflow”