| A | B |
| Energy | critical resource for our lives |
| a result of inefficiency, such as polution | external costs |
| complementary good | demand for a good affects the demand for another good |
| Elasticity | the degree to which consumption changes relative to change in price |
| electricity | secondary energy source |
| petroleum, coal, natural gas, solar, hydropower, etc. | primary energy resources |
| DOE suggests the coal supply is | 400 years |
| DOE estimates that the real coal supply is | 200 years |
| energy intensity | amount of energy use per dollar of GDP |
| OPEC | 1960 |
| year that Congress imposed a price ceiling | 1974 |
| gas shortage | 1970's |
| programs encouraging coustomers to shif usage to non-peak time periods | demand-side management |
| California Energy Crisis | 2001 |
| FERC began to facilitate the development of the market in | 1999 |
| Use of biomass, landfill gas, wind, geothermal, and solar, will double by | 2020 |
| clean burning, safe to use, unlimited in supply | green power |
| Clean Air Act | 1990 |
| Clean Air Acts began in | 1955 |
| Comprehensive National Energy Strategy | 1998 |