MONTHLY POWER PRODUCTION SUMMARY FOR: DEC 2005 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 44198 176 44022 176 44022 ALBENI FALLS DAM ON 15913 225 15688 225 15688 BIG CLIFF DAM 8101 53 8048 53 8048 BONNEVILLE DAM & LAK 443077 2767 440310 2075 441002 COUGAR DAM 7857 147 7710 147 7710 DETROIT DAM 21450 213 21237 213 21237 DEXTER DAM & LAKE ON 8847 18 8829 18 8829 GREEN PETER DAM 31367 71 31296 71 31296 HILLS CREEK DAM & LA 20096 93 20003 93 20003 JOHN DAY DAM & LAKE 716640 1472 715168 1030 715610 LOOKOUT POINT DAM & 29763 193 29570 193 29570 MCNARY DAM & LAKE WA 473310 2232 471078 850 472460 THE DALLES DAM & LAK 588384 1648 586736 1220 587164 CHIEF JOSEPH DAM & E 875132 1617 873515 1617 873515 ICE HARBOR DAM 120954 2450 118504 490 120464 LITTLE GOOSE DAM & L 116441 727 115714 436 116005 LOWER MONUMENTAL DAM 122721 618 122103 371 122350 LIBBY DAM & LAKE KOO 317419 830 316589 830 316589 LOST CREEK DAM 26677 264 26413 116 26561 LOWER GRANITE DAM & 120874 1481 119393 592 120281 FOSTER DAM 9627 118 9509 118 9509 GRAND COULEE DAM 1656476 4274 1652202 4274 1652202 HUNGRY HORSE DAM 34410 0 34410 0 34410 TOTAL 5809734 21686 5788048 15208 5794526