http://www.ck12.org Chapter 3. Making A Difference
Figure 26.10 shows 13 locations in Scotland with potential for pumped storage. (Most of them already have a
hydroelectric facility.) If ten of these had the same potential as I just estimated for Loch Sloy, then we could store
400 GWh – one third of the total of 1200 GWh that we were aiming for.
We could scour the map of Britain for other locations. The best locations would be near to big wind farms. One
idea would be to make a new artificial lake in a hanging valley (across the mouth of which a dam would be built)
terminating above the sea, with the sea being used as the lower lake.
Figure 26.10:Lochs in Scotland with potential for pumped storage.
Thinking further outside the box, one could imagine getting away from lakes and reservoirs, putting half of the
facility in an underground chamber. A pumped-storage chamber one kilometre below London has been mooted.