"The UK Government has failed to put in place any market incentives to build pumped storage in Scotland. There are two projects near Loch Ness which have been granted permission by the Scottish Government, which would more than double the entire UK’s pumped storage capacity. A third, at Loch Awe is at the proposal stage. But developers have not yet started work on any of these. For a business to embark on a big infrastructure project like this, which will take many years to build and use, usually requires Government incentives. The UK Government is coming under pressure to provide this – but an independent Scotland could have done it years ago, when Norway started its projects."
https://www.businessforscotland.com