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<br />t?:t,F' <br /> <br />" <br /> <br />~ '. ~ ,,") r ~ <br />UG(;.)~ . <br /> <br />1,850,000 kilowatts assigned to supply preference 9ustomer loads in the <br /> <br />Eastern Missouri Basin area. <br /> <br />The 1,850,000 kilowatts is the amount of power the hydro system <br /> <br />can supply preference customers at time of annual peak loads. However, <br /> <br />during the winter months, there is not enough water to produce all the <br /> <br />energy required to serve that amount of firm load. Actually, in the <br /> <br />lowest water years, there will be insufficient water during the summer <br /> <br />months also. <br /> <br />This points up a problem faced by a hydro system in that the <br /> <br />water releases from the dams are greatest in the sU1lllller months when the <br /> <br />electric load is down, and the available water is limited in the winter <br /> <br />months when the electric requirements are maximum. <br /> <br />Under average water conditions, the federal hydro plants can <br /> <br />fully supply the month-by-month requirements of customers having a <br /> <br />combined peak load of only 1,200,000 kilowatts. In the worst water years, <br /> <br />the customers I load would be limited to 900,000 kilowatts. <br /> <br />In normal or better water years, the federal plants can produce <br /> <br />more energy than needed to supply customers having 1,850,000 kilowatts <br /> <br />of peak load. However, the energy will not be produced when required. <br /> <br /> <br />In the winter (non-navigation season), there will be a shortage of hydro <br /> <br /> <br />energy; and in the summer (navigation season), there will be a surplus. <br /> <br />Firming of Hydro <br /> <br />The local thermal systems propose to supp~ the government <br /> <br />sufficient thermal energy so its firm power sales from the hydro plants <br /> <br />can be increased to 1,850,000 kilowatts from the presently foreseen <br />limitations of 900,000 kilowatts under adverse water conditions and <br /> <br />1,200,000 kilowatts under average water conditions. <br /> <br />-2- <br />