MONTHLY POWER PRODUCTION SUMMARY FOR: SEP 2004 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 141449 155 141294 155 141294 ALBENI FALLS DAM ON 24828 171 24657 171 24657 BIG CLIFF DAM 7031 29 7002 29 7002 BONNEVILLE DAM & LAK 366096 1917 364179 1438 364658 COUGAR DAM 0 0 0 0 0 DETROIT DAM 30850 166 30684 166 30684 DEXTER DAM & LAKE ON 1851 18 1833 18 1833 GREEN PETER DAM 12313 0 12313 0 12313 HILLS CREEK DAM & LA 13951 55 13896 55 13896 JOHN DAY DAM & LAKE 584984 1559 583425 1091 583893 LOOKOUT POINT DAM & 18576 101 18475 101 18475 MCNARY DAM & LAKE WA 399235 1440 397795 850 398385 THE DALLES DAM & LAK 453202 1257 451945 930 452272 CHIEF JOSEPH DAM & E 670128 892 669236 892 669236 ICE HARBOR DAM 128597 2141 126456 428 128169 LITTLE GOOSE DAM & L 129125 617 128508 370 128755 LOWER MONUMENTAL DAM 122056 985 121072 591 121466 LIBBY DAM & LAKE KOO 197842 445 197397 445 197397 LOST CREEK DAM 21048 139 20909 61 20987 LOWER GRANITE DAM & 125714 859 124855 344 125370 FOSTER DAM 6394 59 6335 59 6335 GRAND COULEE DAM 1257685 3365 1254320 3365 1254320 HUNGRY HORSE DAM 68952 0 68952 0 68952 TOTAL 4781908 16370 4765538 11560 4770348