University of Strathclyde Small Scale Hydro: Novel Approaches to Generation & Transmission

Hillside

Transmission Background

In view of the generation capabilities indicated in the initial feasibility study of the Glen Almond scheme, we have looked at a number of possible routes for exporting any power that may be generated at the proposed site onto the national grid.

Considering the maximum potential generation from the Glen Almond scheme, a working figure of 2MW of proposed capacity for any of the chosen grid connection was agreed upon. This would provide a more than suitable connection for the site and still comfortably allow for additional connections to be made from other potential renewable energy generators in the locality.

Scottish and Southern Energy has 9 large Hydro-schemes built predominantly in harsh and remote locations during the 1940's and 50's by a group of workers who became known as the "Hydro Boys". This prevalence of schemes with tunnels and aqueducts offers the opportunity to exploit existing infrastructure to connect grid isolated areas with generating potential that may have otherwise been consider unfeasible due to the high costs of installing and upgrading transmission equipment and infrastructure.

Breadalbane Scheme

At the head of Glen Almond there is a tunnel running into Loch Lednock, a small link in one of these hydro schemes, Breadalbane. Overall the Breadalbane scheme has 7 main generating stations and when the scheme was completed in the late 1950's, over 20 tunnels and aqueducts had been constructed to carry water to 7 power stations. For the Breadalbane scheme alone, the total length of tunnels and aqueducts measures approximately 60km!


Discussion on the possible transmission routes for the Glen can be found here