Energy Department
- EIA: State Energy Data System
- EIA: Residential Energy Consumption Survey (2009)
- EIA: Commercial Building Energy Consumption Survey (2003)
- EIA: Electricity Data
- OpenEI: Utility Rate Database
- OpenEI: Energy Efficiency Incentives API
- OpenEI: Commercial Building Energy Profiles
- OpenEI: National Solar Radiation Database
- OpenEI: Alternative Fuel Station Locations
- NREL: Utility Rate API
- NREL: BEopt, Building Energy Optimization Software
- NREL: PVWatts, Photovoltaic Calculator
- LBNL: Energy IQ API, Nonresidential Building Efficiency Analysis Tool
- LBNL: Home Energy Saver API, Residential Building Analysis Tool