Reported on the New Scientist website

Internet search giant Google – sometimes criticised for the amount of energy its servers use – now aims to do for the power grid what it did for the web and calls for stricter building codes

Google itself is improving its servers and their buildings, identifying $5 million in building efficiency investments that will pay for themselves in two and a half years. New efficiency standards for computers could US cut power consumption by the equivalent of 10 to 20 coal-fired plants by 2010, the company says.

More on the google blog