![Amory Lovins: A 40-year plan for energy](https://pi.tedcdn.com/r/talkstar-photos.s3.amazonaws.com/uploads/ef359256-caa2-49c4-a395-001812179d7a/AmoryLovins_2012S-embed.jpg?h=200)
In this intimate talk filmed at TED's offices, energy innovator Amory Lovins shows how to get the US off oil and coal by 2050, $5 trillion cheaper, with no Act of Congress, led by business for profit. The key is integrating all four energy-using sectors—and four kinds of innovation.