Severn Barrage optimised modelled output

Tide height, pool level (maximum equal to preceding high tide) and head shown in metres Generation shown in GW Time is in mins since high tide - the neap high tide is at 745 mins

Values shown while barrage is generating. Spring tide generates 33.3GWh over 6:27hrs, Neap 3.8GWh over 2:38hrs
Source: Malcolm Balls B.Sc. (PhD Thesis) Get the data