Table 1. The long list
Route |
Proposals (notes, proposer) |
Minehead to Aberthaw |
Outer barrage (25 TWh/y) |
|
Tidal fence (3.5 TWh/y, an array of tidal stream turbines, Pulse Tidal) |
|
Tidal reef (20TWh/y, rotating turbine modules, Evans Engineering) |
Cardiff to Weston |
Conventional barrage, Lavernock Point to Brean Down (17 TWh/y) |
|
Variant of above with causeway and other facilities (Severn Lakes) |
|
Tidal Fence, (3.5 TWh/y, array of tidal stream turbines, Severn Tidal Fence Gp) |
|
Barrage variant, Cardiff to Hinkley Point (better flood defence, Shawater) |
Upper Estuary |
Shoots, conventional barrage (2.77 TWh/y) |
|
Beachley barrage (Like Shoots but doesn’t cut off River Wye) |
|
Welsh Grounds tidal impoundment (3.0 TWh/y, Fleming Energy) |
|
Tidal lagoons (various, including those proposed by Tidal Electric) |