April 29, 2010

The Department of Energy has published the representative average unit costs of five residential energy sources for the year 2009, as required by the Energy Policy and Conservation Act. These costs are used to determine estimated annual operating costs for certain consumer products such as furnaces and water heaters. The representative average unit cost of propane is compared to other fuels for last year in the table below.

Representative energy costs, 2009 - 2010

Average Unit Costs of Energy for Five Residential Energy Sources
Type of energyPer million Btu1 In commonly used termsAs required by test procedure
[2010]
Sources: U.S. Energy Information Administration, Short-Term Energy Outlook(January 2010) and Monthly Energy Review(December 2009)
1. Btu stands for British thermal units.
2. kWh stands for kilowatt hour.
3. 1 kWh = 3,412 Btu.
4. 1 therm = 100,000 Btu. Natural gas prices include taxes.
5. MCF stands for 1,000 cubic feet.
6. For the purposes of this table, one cubic foot of natural gas has an energy equivalence of 1,029 Btu.
7. For the purposes of this table, one gallon of No. 2 heating oil has an energy equivalence of 138,690 Btu.
8. For the purposes of this table, one gallon of liquid propane has an energy equivalence of 91,333 Btu.
9. For the purposes of this table, one gallon of kerosene has an energy equivalence of 135,000 Btu.
Electricity $33.70 11.50¢/kWh 2 3 $.1150/kWh
Natural Gas 11.94 $1.194/therm4or $12.29/MCF 5 6 .00001194/Btu
No. 2 Heating Oil 20.76 $2.88/gallon7 .00002076/Btu
Propane 24.31 $2.22/gallon8 .00002431/Btu
Kerosene 23.03 $3.11/gallon9 .00002303/Btu

BTU is British Thermal Unit -- Just what is a BTU?
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