Invinity Energy Systems has delivered four VS3 vanadium flow batteries with a total capacity of more than 0.8 MWh to an energy project at a waste-water treatment plant owned by Scottish Water in Perthshire, Scotland.
The vanadium flow battery will be coupled with solar PV generation to provide ancillary services to the UK grid and support EV charging at the site. It will also reduce energy costs at Perth waste water treatment works and help reduce the facility’s CO2 emissions by 160t per annum.

Invinity and principal contractor Absolute Solar and Wind expect to energise and commission the system ahead of go-live by the end of 2021.

Larry Zulch, chief executive at Invinity, said, “We applaud Scottish Water’s determination to reduce carbon emissions through solar coupled with utility-grade energy storage. Our team in Bathgate is rightfully proud that their work, in partnership with Absolute Solar and Wind, supports Scotland’s publicly owned water utility serving millions of customers.”