CIP Invests €270 Million in 350 MW Scottish Battery Storage Project

Copenhagen Infrastructure Partners (CIP), through its fourth flagship fund, Copenhagen Infrastructure IV (CI IV), has taken Financial Investment Decision (FID) for Kilmarnock South, a 350 MW / 1,400 MWh lithium-ion battery energy storage system (BESS) located in south Ayrshire, southern Scotland.

With a four-hour storage duration, Kilmarnock South will become the longest-duration asset in CIP’s expanding UK battery storage portfolio once operational. The facility will store excess Scottish wind-generated electricity that might otherwise be curtailed and feed it back into the grid when network capacity allows. Kilmarnock South marks CIP’s fourth investment in grid-connected BESS projects in Scotland, alongside Coalburn 1, which commenced commercial operations in August 2026, Coalburn 2, and Devilla. Once all four projects are fully commissioned, they will provide a combined storage capacity of 4.4 GWh, equivalent to nearly one-third of Great Britain’s operational battery energy storage capacity.

Construction is now underway, with commercial operations expected in Q1 of 2028.