Where our energy comes from

I had planned to post this graph (Energy use by source, from the EIA Annual Energy Review 2004) with the last one. It shows how the different sources of energy used in the United States have grown. It is given in quadrillion btu’s (a unit of energy). To give some relative numbers: one million barrels of oil a day is equivalent to 2 trillion cubic feet of natural gas a year, 94 million tons of coal a year or 2.12 quadrillion BTU’s (Quads).

More after the jump at The Oil Drum