The study carried out for the Forum for Renewable Energy Development in Scotland by Nick Forrest Associates, the Scottish Institute of Sustainable Technology, and Black & Veatch revealed there was potential for 657 megawatts of financially viable hydo electricity schemes.
While Black and Veatch had worked out costs on some of the potential work this has not been released because it is “commercially sensitive”.
Scottish energy minister Jim Mather said: "While we are unlikely to see much in the way of further large scale developments, it is clear there is huge untapped potential - and a sustainable and profitable future - in smaller and micro hydro schemes. “
The Scottish Government is currently considering 10 hydro applications.