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<br />The slight decrease portrayed fDr "GeneratiDn and Firm <br />Transfers" from 1978 to 1979 as shDwn in Figure 6 is due to the Northwest <br />revising its criteria fDr reporting the hydro capability Df the federal <br />system from a one hour to a ten hDur sustained peaking capability <br />beginning in 1979. The new criteria reduces the area's hydro capability <br />by approximately 1,500 MW. In addition, Grand Coulee's capability is <br />1,543 MW below its nDrmal capability rating and this condition will exist <br />through June Df 1985 due to a tailwater prDblem. <br /> <br />I <br />I <br />.1 <br />I <br />I <br />I <br />I <br />1 <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />'1 <br />I <br />j <br />1 <br /> <br />12 <br />