MONTHLY POWER PRODUCTION SUMMARY FOR: DEC 1999 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 42567 557 42010 557 42010 ALBENI FALLS DAM ON 17845 196 17649 196 17649 BIG CLIFF DAM 14124 41 14083 41 14083 BONNEVILLE DAM & LAK 609457 2144 607313 1608 607849 COUGAR DAM 16404 70 16334 70 16334 DETROIT DAM 61350 235 61115 235 61115 DEXTER DAM & LAKE ON 11611 31 11580 31 11580 GREEN PETER DAM 53581 93 53488 93 53488 HILLS CREEK DAM & LA 17432 56 17376 56 17376 JOHN DAY DAM & LAKE 1078960 1458 1077502 1021 1077939 LOOKOUT POINT DAM & 37865 196 37669 196 37669 MCNARY DAM & LAKE WA 673261 3184 670077 850 672411 THE DALLES DAM & LAK 849974 1575 848399 1166 848808 CHIEF JOSEPH DAM & E 1334155 1214 1332941 1214 1332941 ICE HARBOR DAM 142536 2319 140217 464 142072 LITTLE GOOSE DAM & L 136404 636 135768 382 136022 LOWER MONUMENTAL DAM 144567 525 144042 315 144252 LIBBY DAM & LAKE KOO 399386 787 398599 787 398599 LOST CREEK DAM 18966 360 18606 158 18808 LOWER GRANITE DAM & 138435 1444 136991 578 137857 FOSTER DAM 12530 149 12381 149 12381 GRAND COULEE DAM 2482908 9717 2473191 9717 2473191 HUNGRY HORSE DAM 94468 0 94468 0 94468 TOTAL 8388786 26987 8361799 19882 8368904