severn estuary tidal energy sustainable development and severn tidal power 7 march 2009 peter kydd...
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![Page 1: Severn Estuary Tidal Energy Sustainable Development and Severn Tidal Power 7 March 2009 Peter Kydd Director of Strategic Consulting Parsons Brinckerhoff](https://reader035.vdocuments.us/reader035/viewer/2022072012/56649e445503460f94b37d86/html5/thumbnails/1.jpg)
Severn Estuary Tidal Energy
Sustainable Development and Severn Tidal Power
7 March 2009
Peter Kydd
Director of Strategic Consulting
Parsons Brinckerhoff
Severn Tidal Power
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Severn Estuary Tidal Energy
Severn Tidal Power Context
Why is Severn Tidal Power being studied?
Security of Supply – tidal power is predictable
15% EU target for renewable energy by 2020– Severn tidal power costs are less than those required
to achieve the corresponding electricity target of 32%
80% reduction in CO2 emissions by 2050 – requires all electricity to be carbon free by 2030
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Severn Estuary Tidal Energy
Sustainable Development Definition
1987:"development that meets the needs of the present without compromising the ability of future generations to meet their own needs.” Our Common Future
1994: "Sustainable development is about ensuring a better quality of life for everyone, now and for generations to come." UK government
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Severn Estuary Tidal Energy
Triple Bottom Line
SUSTAINABLE DEVELOPMENT CONSIDERATIONS
ECONOMIC
SOCIALENVIRONMENT
THE OBJECTIVE:
To achieve the best balance between economic, environmental and social benefits and impacts
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Severn Estuary Tidal Energy
Key points in a sustainable context
Economics
• Higher Energy Costs than current electricity but predictable and renewable, lasts for 120 years
• How much energy to extract? The greater the energy extraction, the greater the impacts.
• How much to invest in one project? £30bn, £20bn, £5bn, £2bn
• Contributes to UK Government 80% reduction of carbon emissions by 2050.
• More Employment but also some losses also if ports are adversely affected
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Severn Estuary Tidal Energy
Key points in a sustainable context
Environment
• Potential for large scale low carbon generation in one location
• Displaces carbon emissions from other power stations
• Night time energy could be used for electric cars?
• Major impact on natural environment – potential loss of habitats / species, requiring significant mitigation / compensation
• Reduced tidal range, water quality changes
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Severn Estuary Tidal Energy
Key points in a sustainable context
Social
• Flood Defence – barrages offer protection from surges and sea level rise but existing land drainage would require modification
• Impact of large transient construction labour force?
• Impact on Ports and associated local employment?
• Potential benefits – leisure, tourism, transport links?
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Severn Estuary Tidal Energy
All Engineering and SEA Reports are available on the public
consultation web-site.
http://severntidalpowerconsultation.decc.gov.uk
Severn Tidal Power Feasibility Study