MONTHLY POWER PRODUCTION SUMMARY FOR: MAY 2009
 
                    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              136926             1584               135343            1584            135343
ALBENI FALLS DAM ON        20273              163                20110             163             20110
BIG CLIFF DAM                  0               20                  -20              20               -20
BONNEVILLE DAM & LAK      439297             1902               437395            1426            437870
COUGAR DAM                     0               86                  -86              86               -86
DETROIT DAM                48616                0                48616               0             48616
DEXTER DAM & LAKE ON       10171               10                10161              10             10161
GREEN PETER DAM            25230               72                25158              72             25158
HILLS CREEK DAM & LA       23816               62                23754              62             23754
JOHN DAY DAM & LAKE       974708             1569               973139            1098            973610
LOOKOUT POINT DAM &        47030              118                46912             118             46912
MCNARY DAM & LAKE WA      555547             2232               553315             780            554767
THE DALLES DAM & LAK      678477             1292               677185             956            677521
CHIEF JOSEPH DAM & E     1040998              867              1040131             867           1040131
ICE HARBOR DAM            297353             1949               295404             390            296963
LITTLE GOOSE DAM & L      421298              501               420797             301            420998
LOWER MONUMENTAL DAM      432666              577               432089             346            432320
LIBBY DAM & LAKE KOO      162342              579               161763             579            161763
LOST CREEK DAM             39480              304                39176             134             39346
LOWER GRANITE DAM &       432235             1346               430889             538            431697
FOSTER DAM                  6678               65                 6613              65              6613
GRAND COULEE DAM         1862011             2774              1859237            2774           1859237
HUNGRY HORSE DAM          136457                0               136457               0            136457
 
 
TOTAL                    7791610            18072              7773538           12369           7779240