It looks like Great Britian is taking the lead in legislating power consumption into action, particulatly with the climate change bill currently being proposed. This is hopeful, especially when a recent survey also reported than about 20 percent of IT dollars in selected European countries are going towards funding green IT initiatives.
It makes sense that England is doing this; energy is running about 7-7.1 (~14 cents) pence per kilowatt-hour there, and they don't have lot a lot of oil, or oil-related reserves to draw upon. Moreover, England has less and less influence to acquire them in the world market. I wouldn't be surprised if others countries follow suit quickly.