By M.A. Laughton
Offers and analyses the assets of renewable power, together with benefits and drawbacks, tasks applied across the world, fee and environmental implications, and the advantages of approach integration.
Read or Download Renewable Energy Sources: Watt Committee: report number 22 PDF
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Additional resources for Renewable Energy Sources: Watt Committee: report number 22
The scope for economic use of coastline devices by local communities in the UK may be fairly limited, perhaps 50 units each of 200 kW, or 10 MW total. Queen’s University consider the resource to be much greater, in the order of 200–300 MW, with possible sites on nearly all the Scottish islands and the coast of Devon and Cornwall. 4 COMMERCIAL PROSPECTS The DEn programme, after a very thorough and searching investigation, concluded that the cost of wave energy would be in the 8–14 p/kWh range (1982 values).
This difference can then be exploited by one set of turbines located between the two basins. Studies (Refs 1 and 2) have shown that the method of operation which results in the lowest unit cost of energy is either simple ebb generation or ebb generation with pumping at high tide. No clear difference has yet Fig. 1. Single tide: ebb generation. been established. However, ebb generation produces electricity for 5–6 h during spring tides, and about 3 h during neap tides, out of a tidal cycle lasting just less than 12½ h.
La Rance: 6 years of operating a tidal power plant in France. Water Power (Oct. 1974) 314–22. 4. , The Annapolis tidal generating station. 3rd Symp. on Wave, Tidal, OTEC and Small Scale Hydro Energy, May 1986, BHRA, Cranfield, Bedford, UK. 5. H. , Investigation and design of the Plover Cover water scheme. Proc. ICE, 32 (1965) 255–93. 6. , A preliminary survey of tidal energy from five UK estuaries. 2nd Int. Symp. on Wave and Tidal Energy, September 1981, BHRA, Cranfield, Bedford, UK. 7. BINNIE & PARTNERS for Department of Energy, Preliminary study of small scale tidal energy, Phases 1 to 3, 1984.