Tidal Barrage power generation potential in England

The sum of the estimates of potential power from tidal barrages in those bays & estuaries that have at least one bank in England, is about 5.57 GWe (48.8 TWh/y, 2.2 kWh/p/d), equivalent to about 13% of current electricity demand.

SiteGWeTWh/yReference
Severn, Minehead to Aberthaw2.8525“Analysis of Options for Tidal Power Development in the Severn Estuary – Interim Options Analysis Report Volume 1“, DECC; December 2008
Solway1.109.66“Tapping the Tidal Power Potential of the Eastern Irish Sea”; Joule Project JIRP106/03, Executive Summary of the Final Report, 2008
Morecambe Bay0.685.98
Mersey0.070.57
Dee0.100.89
Wash0.423.70“The potential for tidal energy from small estuaries”, Department of Energy 1989, ETSU TID 4048-P1, as reported in “Tapping the Tidal Power Potential…” above
Humber0.191.65
Thames0.161.37
Total5.5748.82 

As the north-west-coast barrages (Solway, Morecambe Bay, Mersey, Dee) have high tide about 4 hours after the Severn, the east-coast barrages (Wash, Humber) have high tide 1-2 hours before the Severn, and the Thames has high tide 6 hours away from the Severn, there would at any given time be at least one barrage generating, and there would often be one available for over-pumping.

These estimates exclude any potential sites that lie solely in Scotland or Wales, and excludes the potential from tidal stream power too.

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3 Comments

  1. admin - August 20, 2009, 3:55 pm Reply

    Good artricle – for reference it needs the total UK power demand for comparison.

  2. Andrew Smith - August 20, 2009, 5:32 pm Reply

    DUKES 2009 has total UK electricity generation at 385.6TWh (43.9GWe) for 2008 (excluding pumped storage), and total final consumption at 341.6TWh (38.9GWe). Should I add this to the article, and will it need re-approving after editing?

  3. Anderson, Neo - April 16, 2010, 1:25 pm Reply

    Thanks Claverton energy group you have produced the stats i urgently needed.

    Thanks Again

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