As with much else the maveric pair running google have shown the corporate world how not "to be evil". While How evil google is another story the following excerpt shows how you can save money and be the good guy.
At the Mountain View campus Google will be installing a cool 16 megawatt array of photovoltaic solar panels, the largest of any corporate campus in the continental United States, perhaps even one of the largest in the world.
Covering a total of six roofs, four of which are main buildings of the Googleplex alone, and even a few solar panels on support structures among the parking lots.
Generating enough energy to power around 1,000 Californian homes, approximately thirty percent of the peak consumption in several Mountain View office facilities will be sustained on these arrays.
Clean, sustainable and renewable energy sources are part of a project to reduce the environmental impact Google has, as a company.
Improving environmental practices according to Google, is part of their corporate responsibility as corporate citizens, as well as healthy business planning and Google Solar is a practical beginning.
This project will be a large investment in renewable energies, one that Google expects to prove as profitable.