MONTHLY POWER PRODUCTION SUMMARY FOR: SEP 2005
 
                    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              129356              570               128787             570            128787
ALBENI FALLS DAM ON        13491              180                13311             180             13311
BIG CLIFF DAM               7906               27                 7879              27              7879
BONNEVILLE DAM & LAK      307741             1940               305801            1455            306286
COUGAR DAM                 10043               54                 9989              54              9989
DETROIT DAM                30250              155                30095             155             30095
DEXTER DAM & LAKE ON        5914               26                 5888              26              5888
GREEN PETER DAM            17803               50                17753              50             17753
HILLS CREEK DAM & LA       10291               44                10247              44             10247
JOHN DAY DAM & LAKE       471974             1460               470514            1022            470952
LOOKOUT POINT DAM &        22532               90                22442              90             22442
MCNARY DAM & LAKE WA      330382             2160               328222             850            329532
THE DALLES DAM & LAK      366393             1282               365111             949            365444
CHIEF JOSEPH DAM & E      624095              937               623158             937            623158
ICE HARBOR DAM             85880             2092                83788             418             85461
LITTLE GOOSE DAM & L       86713              514                86199             308             86404
LOWER MONUMENTAL DAM       89187              548                88639             329             88858
LIBBY DAM & LAKE KOO      152051              551               151500             551            151500
LOST CREEK DAM             16600              147                16453              65             16535
LOWER GRANITE DAM &        91250             1360                89890             544             90706
FOSTER DAM                  7153               62                 7091              62              7091
GRAND COULEE DAM         1171071             1785              1169286            1785           1169286
HUNGRY HORSE DAM           28537                0                28537               0             28537
 
 
TOTAL                    4076612            16033              4060579           10470           4066142