1. https://www.eia.gov/totalenergy/data/annual/index.php.
2. Decarbonizing U.S. Transportation, https://www.c2es.org/document/decarbonizing-u-s-transportation/
3. 2015 Residential Energy Consumption Survey (RECS) - https://www.eia.gov/consumption/residential/data/2015/
4. 2012 Commercial Buildings Energy Consumption Survey (CBECS) -https://www.eia.gov/consumption/commercial/data/2012/
5. 2014 Manufacturing Energy Consumption Survey (MECS) - https://www.eia.gov/consumption/manufacturing/data/2014/