Energy efficiency can slash US energy use and greenhouse gas emissions by about 50% by 2050, getting us halfway to our national climate goals. We can achieve almost all these savings, worth more than $700 billion in 2050, by dramatically scaling up government policies and programs. This report examines 11 packages of efficiency opportunities in every economic sector and the policies that could unlock each of them. We find the greatest savings from efficient and electric vehicles, industrial efficiency and decarbonization, transportation system efficiency, upgrades to existing buildings and homes, zero energy new buildings and homes, and appliance and equipment efficiency. (Fact sheet here.)
