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<br />TABLE I.-Coal-resource development alternatives, 1975-90 <br /> <br />(From Steele, Bauer, Went~. i1nd Warner (1979). Development Altenlotiv!"8 8ll0UmO coal u~e for electr\c.power generation to avetallf':J,OOO ton8 peryeaf pefmegawattof <br />genafation capacity. In raalit~" coal UBe will bellrrocted by lluch factors 80 plant erl'iciel1cy, plant 011.e, quality of the coal, ond environmental controls imposed on raol- <br />dunlB. The 1976 baae reflecto a 4:JO-mogllwatt ('{Ipacity at the H{lyden PUwerplllnt] <br /> <br />Type of growth and alternative1 <br /> <br />Coal use, in mi 11 ions of tons per year <br /> <br /> 1975 1980 1985 1990 <br />Slow: <br />7 Electric powerplants (760 megawatts)-- 1. 50 (21980) 4.20 4.20 4.20 <br /> Ra i I road exports---------------------- 3.10 1. 80 3.80 5.80 <br /> Total---------------------------- m b.OO m 10.00 <br /> <br />Moderate: <br />1 Electric powerplants (760 megawatts)-- <br />Railroad exports---------------------- <br />Total---------------------------- <br /> <br />2 Electric powerplants (760 megawatts)-- <br />Coal gasification plants (250 million <br />standard cubic feet each). <br />Railroad exports---------------------- <br />Total---------------------------- <br /> <br />3 Electric powerplants (760 megawatts) <br />(1,200 megawatts). <br />Railroad exports---------------------- <br />Total---------------------------- <br /> <br />4 Electric powerplants (760 megawatts) <br />(1,200 megawatts). <br />Slurry pipeline----------------------- <br />Railroad exports---------------------- <br />Total---------------------------- <br /> <br />1.50 (21980) 4.20 4.20 4.20 <br />3.10 5.80 10.80 15.80 <br />m 10.00 15.00 20.00 <br />1.50 (21980) 4.20 4.20 4.20 <br />0 0 (21985) 6.25 (21990) 12.50 <br />3.10 5.80 .J.:22. 3.30 <br />m 10.00 15.00 20.00 <br />1. 50 (21980) 4.20 (21982) 8.40 8.40 <br />3.10 5.80 6.60 11.60 <br />m 10.00 15.00 20.00 <br />1.50 (21980) 4.20 (21982) 8.40 8.40 <br />0 0 0 (21989) 10.00 <br />3.10 5,80 6.60 1.60 <br />m 10,00 15.00 20.00 <br />1.50 (21980) 4.20 (21985) 14.00 (21990) 30.80 <br />3.10 7.80 10.00 0 <br />m 12.00 24.00 TO:8o" <br />1.50 (21980) 4.20 (21985) 8.40 (21990) 19.60 <br />0 0 (21985) 6.25 6.25 <br />3.10 7.80 9.35 4.95 <br />m 12.00 24,00 30.80 <br /> <br />Rapid: <br />5 Electric powerplants (760 megawatts) <br />(2,800 megawatts) <br />(4,800 megawatts). <br />Railroad exports---------------------- <br />Total---------------------------- <br /> <br />6 Electric powerplants (760 megawatts) <br />(1,200 megawatts) <br />(3,200 megawatts). <br />Coal gasification plant (250 mill ion <br />standard cubic feet). <br />Rai Iroad exports---------------------- <br />Total---------------------------- <br /> <br />ISequence code as given in Udls, Adams, Hess, and Orr (1977). <br />2Year in which additional capacity becomes fully operational. <br /> <br />In developing the alternatives, primary con- <br />sideration was given to meeting the estimated de- <br />mand by coal-fired power-generation plants, which <br />currently is a major proposed use of coal in the <br /> <br />basin. The first two alternatives assumed the coal- <br />fired power-generation capacity existing or being <br />constructed in the basin-the Hayden and Craig <br />powerplants (fig. 2). The remaining coal produced <br /> <br />6 <br />