MONTHLY POWER PRODUCTION SUMMARY FOR: SEP 2002
 
                    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              134714              793               133921             793            133921
ALBENI FALLS DAM ON        18149              164                17985             164             17985
BIG CLIFF DAM               6403               30                 6373              30              6373
BONNEVILLE DAM & LAK      342009             1488               340521            1116            340893
COUGAR DAM                     0                0                    0               0                 0
DETROIT DAM                26950              180                26770             180             26770
DEXTER DAM & LAKE ON        7541               27                 7514              27              7514
GREEN PETER DAM             9597               62                 9535              62              9535
HILLS CREEK DAM & LA       18992               38                18954              38             18954
JOHN DAY DAM & LAKE       541531             1478               540053            1035            540496
LOOKOUT POINT DAM &        24378               93                24285              93             24285
MCNARY DAM & LAKE WA      365183             2800               362383             850            364333
THE DALLES DAM & LAK      421275             1282               419993             949            420326
CHIEF JOSEPH DAM & E      668262              909               667353             909            667353
ICE HARBOR DAM            106267             1940               104327             388            105879
LITTLE GOOSE DAM & L      104673              587               104086             352            104321
LOWER MONUMENTAL DAM      107437              552               106885             331            107106
LIBBY DAM & LAKE KOO      102812              512               102300             512            102300
LOST CREEK DAM             19100              131                18969              58             19042
LOWER GRANITE DAM &       107397             1345               106052             538            106859
FOSTER DAM                  3431               62                 3369              62              3369
GRAND COULEE DAM         1244856             7609              1237247            7609           1237247
HUNGRY HORSE DAM           83693                0                83693               0             83693
 
 
TOTAL                    4464650            22082              4442568           16095           4448554