MONTHLY POWER PRODUCTION SUMMARY FOR: SEP 2000 TOTAL GENERATION TOTAL STATION NET GENERATION POWER AUX NET GENERATION PROJECT IN MWH USE-MWH TO BPA-MWH USE---MWH REPORTED TO FERC DWORSHAK DAM 42737 3784 38953 3784 38953 ALBENI FALLS DAM ON 18401 176 18225 176 18225 BIG CLIFF DAM 7608 32 7576 32 7576 BONNEVILLE DAM & LAK 365658 2026 363632 1520 364138 COUGAR DAM 13564 34 13530 34 13530 DETROIT DAM 31500 159 31341 159 31341 DEXTER DAM & LAKE ON 6583 22 6561 22 6561 GREEN PETER DAM 10529 78 10451 78 10451 HILLS CREEK DAM & LA 20248 28 20220 28 20220 JOHN DAY DAM & LAKE 599433 1567 597866 1097 598336 LOOKOUT POINT DAM & 24729 110 24619 110 24619 MCNARY DAM & LAKE WA 405955 2975 402980 850 405105 THE DALLES DAM & LAK 478620 1424 477196 1054 477566 CHIEF JOSEPH DAM & E 754610 866 753744 866 753744 ICE HARBOR DAM 107788 1941 105847 388 107400 LITTLE GOOSE DAM & L 106550 555 105995 333 106217 LOWER MONUMENTAL DAM 111031 445 110586 267 110764 LIBBY DAM & LAKE KOO 126377 590 125787 590 125787 LOST CREEK DAM 19133 164 18969 72 19061 LOWER GRANITE DAM & 113106 1277 111829 511 112595 FOSTER DAM 3902 65 3837 65 3837 GRAND COULEE DAM 1428608 4389 1424219 4389 1424219 HUNGRY HORSE DAM 39758 0 39758 0 39758 TOTAL 4836428 22707 4813721 16424 4820004