MONTHLY POWER PRODUCTION SUMMARY FOR: APR 2010
 
                    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               31199              476                30723             476             30723
ALBENI FALLS DAM ON        11312              148                11164             148             11164
BIG CLIFF DAM               3148               34                 3114              34              3114
BONNEVILLE DAM & LAK      215833             2808               213025            2106            213727
COUGAR DAM                  8128               99                 8029              99              8029
DETROIT DAM                21400                0                21400               0             21400
DEXTER DAM & LAKE ON        2957                8                 2949               8              2949
GREEN PETER DAM            24428               76                24352              76             24352
HILLS CREEK DAM & LA        4505               73                 4432              73              4432
JOHN DAY DAM & LAKE       528686             1554               527132            1088            527598
LOOKOUT POINT DAM &        12109              130                11979             130             11979
MCNARY DAM & LAKE WA      314196             3600               310596             760            313436
THE DALLES DAM & LAK      349626              767               348859             568            349058
CHIEF JOSEPH DAM & E      619666             1025               618641            1025            618641
ICE HARBOR DAM             68167             1961                66206             392             67775
LITTLE GOOSE DAM & L      144580              495               144086             297            144283
LOWER MONUMENTAL DAM      114615              477               114138             286            114329
LIBBY DAM & LAKE KOO       63154              629                62525             629             62525
LOST CREEK DAM             13253              293                12960             129             13124
LOWER GRANITE DAM &       123674             1340               122334             536            123138
FOSTER DAM                  6543               92                 6451              92              6451
GRAND COULEE DAM         1076884             2513              1074371            2513           1074371
HUNGRY HORSE DAM           18488                0                18488               0             18488
 
 
TOTAL                    3776551            18598              3757953           11465           3765086