. Electric railway journal . ^0 5 10 15 ?0 85 50 35 40 . 45 50Station Capcicity in Kilowatts for Two Hours, Thousands FIG. 3—FUEL COST PER KILOWATT-HOUR, ALL PLANTS CORRECTEDTO COAL AT $5 PER NET TON AND 12,500-B. T. U. PER POUND posite railway load curves were made up from six reportsbased upon strictly railway load. The composite resultis shown in Pig. 1, the data from wliich it was plotted beingweighted by increasing the actual hourly peak of each plantby the ratio between such plants maximum peak and chatof the plant having the greatest peak. Report of Atlantic City Convention, October, 19


. Electric railway journal . ^0 5 10 15 ?0 85 50 35 40 . 45 50Station Capcicity in Kilowatts for Two Hours, Thousands FIG. 3—FUEL COST PER KILOWATT-HOUR, ALL PLANTS CORRECTEDTO COAL AT $5 PER NET TON AND 12,500-B. T. U. PER POUND posite railway load curves were made up from six reportsbased upon strictly railway load. The composite resultis shown in Pig. 1, the data from wliich it was plotted beingweighted by increasing the actual hourly peak of each plantby the ratio between such plants maximum peak and chatof the plant having the greatest peak. Report of Atlantic City Convention, October, 1919 75. L8 , Cost in Cents per Kilow(^tt-hour FIG. 4—CHART SHOWING FUEL COST PERFORMANCE OF PLANTS OFVARIOUS SIZES Explanation to Fig. 4. Left-hand curve in the diagram shows relation of fuelcost (correcting to 12,500-B. t. u. coal at $5 per short ton) to two-hour plantcapacity. Other lines permit graphic calculation and comparison of any plantperformances, given coal cost per short ton, B. t. u. value of coal and actualfuel cost per kilowatt-hour. Example: Assume 3000-kw. plant, $ coal cost per short ton and13,500-B. t. u. coal. Follow arrows, starting at 3000 kw. on station capacityscale, intersect plant performance curve, then downward to cent perkilowatt-hour, giving fuel cost per kilowatt-hour for a 3000-kw. plant as peranalyzed result of twenty-five plants. Comparison: Follow arrows, starting at $, horizontally to curve, thendownward to fuel value (13,500-B. t. u.), horizontally to actual fuel cost perkilowatt-hour (1 cent) and downward to corre


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