MONTHLY POWER PRODUCTION SUMMARY FOR: APR 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 314434 615 313819 615 313819 ALBENI FALLS DAM ON 16668 160 16508 160 16508 BIG CLIFF DAM 9496 33 9463 33 9463 BONNEVILLE DAM & LAK 442821 3047 439774 2285 440536 COUGAR DAM 312 7 305 7 305 DETROIT DAM 34800 167 34633 167 34633 DEXTER DAM & LAKE ON 6672 26 6646 26 6646 GREEN PETER DAM 32226 92 32134 92 32134 HILLS CREEK DAM & LA 16062 58 16004 58 16004 JOHN DAY DAM & LAKE 893944 1556 892388 1089 892855 LOOKOUT POINT DAM & 29501 139 29362 139 29362 MCNARY DAM & LAKE WA 481280 2876 478404 760 480520 THE DALLES DAM & LAK 595450 1274 594176 943 594507 CHIEF JOSEPH DAM & E 1010162 974 1009188 974 1009188 ICE HARBOR DAM 186350 2108 184242 422 185928 LITTLE GOOSE DAM & L 200337 633 199704 380 199957 LOWER MONUMENTAL DAM 383427 524 382903 314 383113 LIBBY DAM & LAKE KOO 54980 727 54253 727 54253 LOST CREEK DAM 31355 305 31050 134 31221 LOWER GRANITE DAM & 263385 1378 262007 551 262834 FOSTER DAM 11768 113 11655 113 11655 GRAND COULEE DAM 1732964 9788 1723176 9788 1723176 HUNGRY HORSE DAM 42659 0 42659 0 42659 TOTAL 6791053 26600 6764453 19777 6771276