Assumptions for Emission-Free Electricity InfoGraphic
- “Emission-free” refers to any generating source that does not produce emissions ofCO2, NOX, or SO2 during its operations. The fuels that fit this category are: nuclear, hydro, wind, solar and geothermal.
- Percentages are based on annual generation from these sources for 2007.
Source material for Emission-free Graph: Global Energy Decisions; Energy Information Administration, U.S. Department of Energy