ESS sells iron flow battery to Patagonian utility

ESS sells iron flow battery to Patagonian utility

ESS sells iron flow battery to Patagonian utility 150 150 Energy Storage Journal

April 29, 2021: Iron flow battery maker ESS has agreed to provide one of its battery systems to the remote area of Patagonia in Chile, the company said on April 27.
ESS will work with the Chilean utility Edelaysen to install the battery, which it calls an ‘Energy Warehouse’, to store renewable energy and cut three quarters of the diesel generation used to power the utility.
At the moment, the utility is powered by a run-of-river hydropower system, which needs to be supplemented by diesel generators throughout the year to boost supply when demand exceeds it.
The iron flow battery system is just 300kW/2MWh in output, but could save around $3 million in diesel over the 25-year life of the system, the company says.
Edelaysen belongs to the electrical energy distribution company Grupo Saesa, which has around 900,000 customers in a 1,000-mile stretch of the Andes in Chile.
“Our analysis showed that if they used lithium-ion batteries, Edelaysen could only shut down their diesel gensets for about three months per year,” said new ESS CEO Eric Dresselhuys, who was appointed just a week ago, on April 20.
“Patagonia is one of the most remote and pristine areas of the planet, and we are pleased that Saesa has entrusted our clean and safe long-duration battery technology to provide vital grid support,” he said.
Dresselhuys has worked at companies such as Procter and Gamble, Smart Energy Water and Enian, and is on the board of directors at Autogrid Systems, which develops software products and services for smart meter and energy use analysis.
ESS says its utility-scale energy storage systems have between four and 12 hours of flexible energy capacity. Their electrolyte consists of iron, salt and water, all abundant and non-toxic materials.