Examples of this type of large scale generation are as follows:
 
•Wind Farms ( For UK wind Farms click here) such as that at Bowbeat (Installed capacity -1.2 watts for every square metre of land used for the wind farm, but of course, most of the land under a wind farm could be used for other purposes, for example bt grazing animals). Wind farms do not generate electricity all the time and therefore systems of energy storage need to be developed. Some of the possible candidates can be found by clicking here.
•Tidal system such as the proposed Severn barrage.  For details of location and probable output click here.
•Wave power e.g. the pelamise  machine and Stephen Salter’s Nodding Ducks
•Geothermal power (Not yet available in the UK)
•Hydro power -Scottish Hydro Board (Installed capacity - 0.1watts per square metre of land flooded).
•Biomass such as the wood burning power station recently built in Lockerbie.(Installed capacity -1.2 watts for every square metre used for biofuel).  Miscanthus, sometimes incorrectly called elephant grass, can also be used (Photo of Miscanthus).
•Solar  -Photovoltaic cells in desert areas. (Installed capacity - six to seven watts per square metre of land covered).



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