MONTHLY POWER PRODUCTION SUMMARY FOR: SEP 2007 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 119727 1440 118287 1440 118287 ALBENI FALLS DAM ON 15670 185 15485 185 15485 BIG CLIFF DAM 2648 13 2635 13 2635 BONNEVILLE DAM & LAK 291428 2205 289223 1654 289774 COUGAR DAM 9476 46 9430 46 9430 DETROIT DAM 0 0 0 0 0 DEXTER DAM & LAKE ON 3154 11 3143 11 3143 GREEN PETER DAM 6523 84 6439 84 6439 HILLS CREEK DAM & LA 10625 42 10583 42 10583 JOHN DAY DAM & LAKE 442110 1489 440621 1042 441068 LOOKOUT POINT DAM & 15962 100 15862 100 15862 MCNARY DAM & LAKE WA 304216 2160 302056 850 303366 THE DALLES DAM & LAK 349060 1241 347819 918 348141 CHIEF JOSEPH DAM & E 549380 833 548547 833 548547 ICE HARBOR DAM 88185 2175 86010 435 87750 LITTLE GOOSE DAM & L 88498 485 88012 291 88206 LOWER MONUMENTAL DAM 90974 439 90535 263 90711 LIBBY DAM & LAKE KOO 125456 491 124965 491 124965 LOST CREEK DAM 19893 134 19759 59 19834 LOWER GRANITE DAM & 94483 1302 93181 521 93962 FOSTER DAM 3641 59 3582 59 3582 GRAND COULEE DAM 1017906 1399 1016507 1399 1016507 HUNGRY HORSE DAM 59674 0 59674 0 59674 TOTAL 3708688 16334 3692354 10737 3697950