We have already spoken about UK Ford's Dagenham plant (see links below). It produces high-mpg 1.4 and 1.6 liter engines for the Fiesta range (good for less than 120 CO2 g/km). It's a "green" factory because it uses wind turbines to generate energy, and optimises all the energy intensive processes. It also saves waste: instead of being thrown away much is reused, giving Ford an additional source of income and a lesser expense in waste management.

These efforts are paying off not only in image and prizes but also in money. This plant is saving 3.4 million GBP per year, which shows that green technologies aren't only designed to make things more expensive.

[Source: Ford]