About Energy & Technology

Oil Natural Gas Coal Renewable Energy Nuclear Electric Power Transportation Industrial Residential & Commercial Electric Power

The C2ES Energy Portal: We use energy every day: in our homes, on our jobs and when we travel. This energy portal is designed to simply explain where our energy comes from (Source) and where it gets used (Sector). Click on any one of the five primary sources of energy -- Oil, Natural Gas, Coal, Renewable Energy, or Nuclear Electric Power -- for an in-depth look at where it comes from, its effects on the environment, its markets, its uses and its future. Click on any of the sectors, Transportation, Industrial, Residential and Commercial or Electric Power, for an overview of how it functions and C2ES' work in each area.

1. Does not include biofuels that have been blended with petroleum — biofuels are included in “Renewable Energy.”
2. Excludes supplemental gaseous fuels.
3. Includes less than 0.1 quadrillion Btu of coal coke net exports.
4. Conventional hydroelectric power, geothermal, solar/PV, wind, and biomass.
5. Includes industrial combined-heat-and-power (CHP) and industrial electricity-only plants.
6. Includes commercial combined-heat-and-power (CHP) and commercial electricity-only plants.
7. Electricity-only and combined-heat-and-power (CHP) plants whose primary business is to sell electricity, or electricity and heat,to the public. Includes 0.1 quadrillion Btu of electricity net imports not shown under “Source.”

Notes: Primary energy in the form that it is first accounted for in a statistical energy balance, before any transformation to secondary or tertiary forms of energy (for example, coal is used to generate electricity). Sum of components may not equal total due to independent rounding.

Sources: U.S. Energy Information Administration, Annual Energy Review 2010, Tables 1.3, 2.1b-2.1f , 10.3, and 10.4.