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SPREADSHEET ON SOURCES AND SAVINGS FOR ELECTRICITY IN THE uk

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Since it is easier to obtain figures relating to electricity supplies for the UK than for other kinds of energy, the spreadsheet shown on this page focuses on potential sources of green electricity for the UK and opportunities to save elecricity. Background information about each of the sources of clean electricity are on Energy Supply and Conservation. Further information may be found in Energy UK.

Even with rather cautious assumptions about what is possible, it is very clear that we can meet our current needs very easily and there is scope for accommodating increases in demand. Since sources like concentrating solar power, photovoltaics and offshore wind power can in principle produce much larger quantities of electricity than shown in this spreadsheet, there is clear potential for using electricity for such things as transport and space heating (via technologies such as ground-source heat pumps) where it currently has only a minor role.

Incidentally, this spreadsheet does not include any contribution from Enhanced Geothermal Systems (EGS), a technology that appears to have a very large potential in the USA and probably elsewhere in the world including the UK. Neither does it include the possibility of importing geothermal electricity from Iceland.

Electricity generation   % UK demand
and conservation    
   
Concentrating solar power   15
Wind   20
Marine    
     Waves 20  
     Tidal currents 3  
     Tidal lagoons 8  
   
     Total (marine)   31
   
Microgeneration    
     Photovoltaics 20  
     Micro-wind 6  
     CHP and fuel cells 16  
   
     Total (microgeneration)   42
   
Electricity conservation    
     Low-energy bulbs 2  
     Eliminate 'stand by' 2  
     More efficient motors 6  
   
     Total (conservation)   10
   
Total   118

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Last updated: 2008-10-15 (ISO 8601)