The Scottish Hydro Electric Power Distribution (SHEPD) connected the 2 MW lithium ion battery created by Mitsubishi Power Systems Europe and Mitsubishi Heavy Industries (MHI) to the local distribution network in Orkney in northern Scotland. SSE Generation will operate the energy storage system.
The project is part of a trial to see how large scale batteries can help get more renewable energy connected to the power grid as well as how it can effectively store excess renewable energy to help keep the lights on.
"This exciting trial will provide valuable research into the viability of using batteries for electricity storage," said Mark Rough, SHEPD's head of commercial. "This is likely to become increasingly important to help balance the variable output from renewable forms of generation as we move to a largely decarbonised electricity generation mix."
The battery energy storage system has been installed at Kirkwall Power Station and builds on the work already carried out in delivering an Active Network Management scheme, which has enabled a significant volume of renewable wind generation to connect to the grid at a reduced cost to renewable generators.