MONTHLY POWER PRODUCTION SUMMARY FOR: APR 1991
 
                    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               86796              460                86336             460             86336
ALBENI FALLS DAM ON        10358              161                10197             161             10197
BIG CLIFF DAM               5082               49                 5033              49              5033
BONNEVILLE DAM & LAK      515566             2870               512696            2152            513414
COUGAR DAM                  8770               78                 8692              78              8692
DETROIT DAM                19700              212                19488             212             19488
DEXTER DAM & LAKE ON        2518               15                 2503              15              2503
GREEN PETER DAM            20488               97                20391              97             20391
HILLS CREEK DAM & LA        8068               44                 8024              44              8024
JOHN DAY DAM & LAKE      1193300             1483              1191817            1038           1192262
LOOKOUT POINT DAM &        13118              123                12995             123             12995
MCNARY DAM & LAKE WA      710398             3090               707308             760            709638
THE DALLES DAM & LAK      898199             1491               896708            1103            897096
CHIEF JOSEPH DAM & E     1399410             1060              1398350            1060           1398350
ICE HARBOR DAM            167603             2050               165553             410            167193
LITTLE GOOSE DAM & L      183454              539               182915             323            183131
LOWER MONUMENTAL DAM      173843              470               173373             282            173561
LIBBY DAM & LAKE KOO       82090              593                81497             593             81497
LOST CREEK DAM             24013              ---                  ---             ---               ---
LOWER GRANITE DAM &       186825             1164               185661             466            186359
FOSTER DAM                 10259              127                10132             127             10132
GRAND COULEE DAM         2272104             8415              2263689            8415           2263689
HUNGRY HORSE DAM          119406              ---                  ---             ---               ---
 
 
TOTAL                    8111368            24591              7943358           17969           7949980