U.S. Department of Energy (DOE) and the U.S. Environmental Protection Agency (EPA) have released an updated version of the “National Action Plan Vision for 2025″, which lays out a proposed energy efficiency action plan for state policy makers. Should it be implemented by all states, the plan is expected to lower energy demand across the country by 50%, achieve more than $500 billion in net savings over the next 20 years, and reduce annual greenhouse gas emissions equivalent to those from 90 mio. cars.