Google’s Clean Energy 2030 proposal suggests a potential path to weaning the U.S. off coal and oil for electricity generation by 2030 (with some remaining use of natural gas as well as nuclear), and cutting oil use for cars by 40%, while generating billions of dollars in savings and helping create millions of green jobs over a 22-year period.

It involves three fronts: Reduce demand by doing more with less; Develop renewable energy that is cheaper than coal; and Electrify transportation and re-invent our electric grid.