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<br />^"'" <br />-~. <br /> <br />W'~i <br />.".... <br />, . <br />Y".d <br /> <br />'-. <br /> <br />FIGURE 9 <br />TERMINOLOGY <br /> <br />1 ton <br /> <br />= British Thermal Unit. One BTU is the heat required <br />to raise 1 pound of water 1 degree Fahrenheit. <br />10,000 BTU = fossil fuel energy input required <br />to produce one kWh. <br /> <br />= Kilowatt hour. Energy equal to that expended <br />by 1 kilowatt in 1 hour. <br /> <br />= 2,000 pounds avoirdupois weight (short ton) <br /> <br />= 42 gallons. <br /> <br />BTU <br /> <br />kWh <br /> <br />1 barrel <br /> <br />FIGURE 10 <br />FUEL COMPARISON <br /> <br />Approximate <br />Fuel Unit Price <br /> <br />Northwestern $28/ton at <br />Colorado Coal* mine mouth <br /> <br />Average BTU <br />per Unit Measure <br />(X One Mill ion) <br /> <br />21 <br /> <br />Approximate Price <br />per Mi 11 ion BTU <br />$1. 30 <br /> <br />Imported <br />Crude Oi 1 <br /> <br />$2B-$30/barrel <br />at port of entry <br /> <br />$2.50 to $5.00/ 1.05 <br />thousand cubic (wet-dry <br />feet (controlled- <br />decontro 11 ed) <br /> <br />5.8 <br /> <br />$4.80 - $5.20 <br /> <br />Natural Gas <br /> <br />$2.40 - $4.75 <br />average) <br /> <br />*Northwestern Colorado coal is used as an average example of western <br />coal. Coal BTU rating and prices vary somewhat through the western <br />U.S. <br /> <br />GPO 840 - 8154 <br /> <br />45 <br />