physics.uci.edu/~silverma/units.html Energy Units and Conversions Energy Units and Conversions http://www.physics.uci.edu/~silverma/units.html www.physics.uci.edu/~silverma/units.html http://www.physics.uci.edu/~silverma/units.html www.physics.uci.edu/~silverma equivalent about 78 percent more CO2 than natural gas BTU’s are units of power http://www.physics.uci.edu/~silverma/units.html http://www.physics.uci.edu/~silverma/units.html