With gas prices set to rise up to 70%: Gas prices 'could rise 70%' | Business | guardian.co.uk,
and the the ever increasing costs of building and managing nuclear power and the still unresolved problem of dealing with nuclear waste: Energy: Bill for Britain's nuclear clean-up increases by another £10bn | Environment | The Guardian
the opportunity for harnessing the power of the water that flows around the UK in tidal streams looks too good to miss: SeaGen tidal power marine turbine plugs into electricity grid | Environment | guardian.co.uk
More info here: Marine Current Turbines
The key advantages of marine versus wind is that the supply is predictable, and that there is up to 15GW of energy available. The first tidal energy farm is planned of the coast of Anglessey in a fast flowing patch of 25 m deep open sea known as the Skerries, which I would guess will be familiar to some of our more experienced Sea Kayakers.
O London, see
Swelling with naval pride, the pride of thee!
Wide, deep, unsullied Thames, meandering glides,
and bears thy wealth on mild majestic tides.