We have completed a feasibility study to determine whether it is possible to expand the station. The findings show that it would be possible to develop between 400-600 MW additional capacity, with investment of between £300 million to £400 million. The study shows that a new cavern would need to be excavated within Ben Cruachan, and the possibility that a new dam could be constructed to increase the capacity of the upper reservoir. We are now considering options following the completion of this study.
Scotland’s National Planning Framework 3 has identified new and expanded pumped storage facilities, including Cruachan, as strategically important, potential national developments with the details reflected in the NPF3 Action Plan.
We have also sought to have the expansion of power generation activities at Cruachan to be reflected in the new Local Development Plan for Argyll & Bute, which is currently being prepared.