https://www.epa.gov/energy/about-us-electricity-system-and-its-impact-environment https://www.epa.gov/energy/about-us-electricity-system-and-i... 86% is nearly

https://www.epa.gov/energy/about-us-electricity-system-and-its-impact-environment https://www.epa.gov/energy/about-us-electricity-system-and-i... 86% is nearly all to be fair(edit as of 2017)... not 99% nearly all but it's well more than half.