MONTHLY POWER PRODUCTION SUMMARY FOR: SEP 1988 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 253219 719 252500 719 252500 ALBENI FALLS DAM ON 14811 132 14679 132 14679 BIG CLIFF DAM 6715 40 6675 40 6675 BONNEVILLE DAM & LAK 364273 1781 362492 1336 362937 COUGAR DAM 17626 36 17590 36 17590 DETROIT DAM 27800 203 27597 203 27597 DEXTER DAM & LAKE ON 6016 20 5996 20 5996 GREEN PETER DAM 12821 81 12740 81 12740 HILLS CREEK DAM & LA 20607 33 20574 33 20574 JOHN DAY DAM & LAKE 620400 1330 619070 931 619469 LOOKOUT POINT DAM & 23623 105 23518 105 23518 MCNARY DAM & LAKE WA 391422 2883 388539 850 390572 THE DALLES DAM & LAK 479294 1513 477781 1120 478174 CHIEF JOSEPH DAM & E 762795 820 761975 820 761975 ICE HARBOR DAM 105479 1732 103747 346 105133 LITTLE GOOSE DAM & L 103107 537 102570 322 102785 LOWER MONUMENTAL DAM 104077 712 103365 427 103650 LIBBY DAM & LAKE KOO 287460 393 287067 393 287067 LOST CREEK DAM 21348 140 21208 62 21286 LOWER GRANITE DAM & 104791 1318 103473 527 104264 FOSTER DAM 4710 90 4620 90 4620 GRAND COULEE DAM 1452625 6763 1445862 6763 1445862 HUNGRY HORSE DAM 53996 --- --- --- --- TOTAL 5239015 21381 5163638 15356 5169663