Saying that “wind power is much more expensive than power from the grid” is not necessarily a sustainable argument (Big businesses must keep green promises, From the newsdesk blog, newsdesk.computing.co.uk).

Ford worked with Ecotricity to put up turbines in Dagenham in 2003, and the numbers indicate the project will pay for itself in about seven years – less if power costs rise.

Once the electricity generated has offset the capital costs and interest generated by building the windmills, further power generated is effectively free. Which is a lot cheaper than power from the grid.

Lem