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.
Australian battery company Redflow Limited (ASX:RFX) has simplified using its batteries in large energy storage systems by integrating plug-and-play technology into its LSB (Large Scale Battery) reference platform.
Implemented in an LSB installed at Simon Hackett’s Base64 property in Adelaide, the new design incorporates six 12-kilowatt (kW) Victron Quattro 48/15000 battery inverter/chargers with 45 Redflow ZBM2 batteries. By implementing this improved design, the Base64 LSB will deliver an energy storage capacity of 450 kilowatt-hours (kWh).
The LSB Reference Platform is a container-sized deployment of Redflow batteries, which can operate as a single ‘virtual” battery to assist Redflow system integrators with designing and deploying larger energy storage systems. Base64 installed its original LSB in 2016, running it for about a year before undertaking the redesign process in conjunction with Redflow.
The redesigned LSB is installed at the back of Base64’s western carpark, beneath an innovative tree-like mounting system that ‘floats’ a 50 kilowatt peak (kWp) array of solar panels above staff and visitor cars. Base64 has an additional 20kWp of solar panels installed elsewhere in the precinct.
Base64 Managing Director Simon Hackett, who is a non-executive director of Redflow, described the Base64 energy system as a “fantastic learning experience”. “The system is built around a Redflow ZBM2 LSB battery system, which is charged by energy harvested from our solar array,” he said.
Australian battery company Redflow Limited (ASX: RFX) has today received in Australia the first battery electrode stacks made by its new Thailand facility.
The battery stack is the critical part of the Redflow ZBM2 zinc-bromine flow battery, containing electrodes that charge the battery by “plating” zinc on a membrane and then discharge it by reversing that process, which can sustain 10 kilowatt-hours of energy storage capacity for the battery’s operating life.
At Redflow’s Brisbane headquarters, the Thai-made battery stacks will be installed on ZBM2 battery tank sets (without stacks) which were manufactured last year at the former factory in North America.
Redflow Chairman Brett Johnson said these complete batteries would be tested and then supplied to customers to meet existing orders. “As we manufacture stacks for these approximately 200 tank sets, we will progressively validate high-quality components and sub-assemblies at our factory,” he said.
Mossel Bay Municipality in the Southern Cape province of South Africa has eliminated the carbon footprint of its Technical Services Department buildings by deploying ZBM2 batteries from Redflow.
Installed in late 2016, the four 10 kilowatt-hour (kWh) zinc-bromine flow batteries have enabled the ageing offices to become net exporters of electricity to the power grid through the intelligent storage of energy harvested from 114 rooftop photovoltaic solar panels.
Mossel Bay Municipality Electricity and Mechanical Department Senior Manager Charles Geldenhuys said the Redflow energy storage system had exceeded expectations. “We are using more energy now than before the system was implemented,” he said.