MONTHLY POWER PRODUCTION SUMMARY FOR: SEP 1977 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 79803 348 79455 348 79455 ALBENI FALLS DAM ON 18796 136 18660 136 18660 BIG CLIFF DAM 7894 28 7866 28 7866 BONNEVILLE DAM & LAK 325901 931 324970 698 325203 COUGAR DAM 18000 42 17958 42 17958 DETROIT DAM 30827 184 30643 184 30643 DEXTER DAM & LAKE ON 5482 13 5469 13 5469 GREEN PETER DAM 13841 84 13757 84 13757 HILLS CREEK DAM & LA 15220 33 15187 33 15187 JOHN DAY DAM & LAKE 549190 1231 547959 862 548328 LOOKOUT POINT DAM & 22973 90 22883 90 22883 MCNARY DAM & LAKE WA 360220 2078 358142 850 359370 THE DALLES DAM & LAK 437237 1318 435919 975 436262 CHIEF JOSEPH DAM & E 656821 624 656197 624 656197 ICE HARBOR DAM 81757 1177 80580 235 81522 LITTLE GOOSE DAM & L 85587 20 85567 12 85575 LOWER MONUMENTAL DAM 83807 300 83507 180 83627 LIBBY DAM & LAKE KOO 108388 336 108052 336 108052 LOST CREEK DAM 5304 37 5267 16 5288 LOWER GRANITE DAM & 86472 960 85512 384 86088 FOSTER DAM 5520 105 5415 105 5415 GRAND COULEE DAM 1404476 2201 1402275 2201 1402275 HUNGRY HORSE DAM 43986 --- --- --- --- TOTAL 4447502 12276 4391240 8437 4395079