MONTHLY POWER PRODUCTION SUMMARY FOR: JUN 2008 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 286373 526 285848 526 285848 ALBENI FALLS DAM ON 5250 111 5139 111 5139 BIG CLIFF DAM 13800 31 13769 31 13769 BONNEVILLE DAM & LAK 494881 2604 492277 1953 492928 COUGAR DAM 20631 55 20576 55 20576 DETROIT DAM 35550 128 35422 128 35422 DEXTER DAM & LAKE ON 4300 12 4288 12 4288 GREEN PETER DAM 30201 0 30201 0 30201 HILLS CREEK DAM & LA 22879 62 22817 62 22817 JOHN DAY DAM & LAKE 1214718 1511 1213207 1058 1213660 LOOKOUT POINT DAM & 53877 119 53758 119 53758 MCNARY DAM & LAKE WA 583283 2160 581123 790 582493 THE DALLES DAM & LAK 792733 1183 791550 875 791858 CHIEF JOSEPH DAM & E 1478468 783 1477685 783 1477685 ICE HARBOR DAM 284360 2162 282198 432 283928 LITTLE GOOSE DAM & L 409831 540 409291 324 409507 LOWER MONUMENTAL DAM 471719 544 471175 326 471392 LIBBY DAM & LAKE KOO 382104 547 381557 547 381557 LOST CREEK DAM 37667 194 37473 85 37582 LOWER GRANITE DAM & 364824 1340 363485 536 364288 FOSTER DAM 13164 60 13104 60 13104 GRAND COULEE DAM 2940836 1602 2939234 1602 2939234 HUNGRY HORSE DAM 172154 0 172154 0 172154 TOTAL 10113604 16274 10097330 10416 10103188