A map of various plans to put some sort of w:barrage across the w:River Severn, including the three main plans. The numbers in brackets represents peak flow generating capacity, in GW (where one GW represents 1 million watts); in comparison, average UK demand is around 40GW.
Created from w:File:Severn_estuary_barrages.png, a work by w:User:Fig wright released into the public domain.
Jarry1250 (derivative of w:User:Fig wright)