MONTHLY POWER PRODUCTION SUMMARY FOR: JUN 2007 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 137395 428 136966 428 136966 ALBENI FALLS DAM ON 30931 191 30740 191 30740 BIG CLIFF DAM 2861 25 2836 25 2836 BONNEVILLE DAM & LAK 331121 2432 328689 1824 329297 COUGAR DAM 10103 61 10042 61 10042 DETROIT DAM 11950 74 11876 74 11876 DEXTER DAM & LAKE ON 7827 11 7816 11 7816 GREEN PETER DAM 8623 71 8552 71 8552 HILLS CREEK DAM & LA 19909 64 19845 64 19845 JOHN DAY DAM & LAKE 853571 1564 852007 1095 852476 LOOKOUT POINT DAM & 31126 106 31020 106 31020 MCNARY DAM & LAKE WA 461632 2160 459472 790 460842 THE DALLES DAM & LAK 518853 1226 517627 907 517945 CHIEF JOSEPH DAM & E 1209683 886 1208797 886 1208797 ICE HARBOR DAM 92047 2112 89936 422 91625 LITTLE GOOSE DAM & L 159941 517 159424 310 159631 LOWER MONUMENTAL DAM 126323 443 125880 266 126057 LIBBY DAM & LAKE KOO 278842 583 278259 583 278259 LOST CREEK DAM 35795 201 35594 88 35707 LOWER GRANITE DAM & 137838 1388 136450 555 137283 FOSTER DAM 4551 100 4451 100 4451 GRAND COULEE DAM 2318007 1590 2316417 1590 2316417 HUNGRY HORSE DAM 94619 0 94619 0 94619 TOTAL 6883548 16233 6867315 10448 6873100