MONTHLY POWER PRODUCTION SUMMARY FOR: SEP 2012 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 130713 396 130317 396 130317 ALBENI FALLS DAM ON 12735 149 12586 149 12586 BIG CLIFF DAM 6528 30 6498 30 6498 BONNEVILLE DAM & LAK 366057 1966 364091 1474 364582 COUGAR DAM 9543 65 9478 65 9478 DETROIT DAM 21936 165 21771 165 21771 DEXTER DAM & LAKE ON 6837 9 6828 9 6828 GREEN PETER DAM 21649 52 21597 52 21597 HILLS CREEK DAM & LA 17328 33 17295 33 17295 JOHN DAY DAM & LAKE 589852 1436 588416 1005 588846 LOOKOUT POINT DAM & 25090 88 25002 88 25002 MCNARY DAM & LAKE WA 382291 2880 379411 850 381441 THE DALLES DAM & LAK 463764 720 463044 533 463231 CHIEF JOSEPH DAM & E 743379 763 742616 763 742616 ICE HARBOR DAM 105357 1992 103365 398 104958 LITTLE GOOSE DAM & L 104234 463 103771 278 103956 LOWER MONUMENTAL DAM 110791 661 110129 397 110394 LIBBY DAM & LAKE KOO 145204 369 144835 369 144835 LOST CREEK DAM 9465 215 9250 95 9370 LOWER GRANITE DAM & 114085 1340 112745 536 113549 FOSTER DAM 7951 40 7911 40 7911 GRAND COULEE DAM 1361471 1627 1359844 1627 1359844 HUNGRY HORSE DAM 49904 0 49904 0 49904 TOTAL 4806162 15459 4790704 9352 4796810