MONTHLY POWER PRODUCTION SUMMARY FOR: APR 2003
 
                    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              322813              627               322186             627            322186
ALBENI FALLS DAM ON        20735              167                20568             167             20568
BIG CLIFF DAM               8213               33                 8180              33              8180
BONNEVILLE DAM & LAK      420975             2849               418126            2137            418838
COUGAR DAM                     0                0                    0               0                 0
DETROIT DAM                31750              191                31559             191             31559
DEXTER DAM & LAKE ON        8365               31                 8334              31              8334
GREEN PETER DAM            23370               94                23276              94             23276
HILLS CREEK DAM & LA       16301               63                16238              63             16238
JOHN DAY DAM & LAKE       892131             1701               890430            1191            890940
LOOKOUT POINT DAM &        35737              143                35594             143             35594
MCNARY DAM & LAKE WA      536379             2876               533503             760            535619
THE DALLES DAM & LAK      626452             1212               625240             897            625555
CHIEF JOSEPH DAM & E      934693              988               933705             988            933705
ICE HARBOR DAM            175208             2076               173132             415            174793
LITTLE GOOSE DAM & L      270647              536               270111             322            270325
LOWER MONUMENTAL DAM      235358              394               234964             236            235122
LIBBY DAM & LAKE KOO       62549              682                61867             682             61867
LOST CREEK DAM             29717              292                29425             128             29589
LOWER GRANITE DAM &       272879             1329               271550             532            272347
FOSTER DAM                 12466               92                12374              92             12374
GRAND COULEE DAM         1738112            10928              1727184           10928           1727184
HUNGRY HORSE DAM            8376                0                 8376               0              8376
 
 
TOTAL                    6683226            27304              6655922           20657           6662569