MONTHLY POWER PRODUCTION SUMMARY FOR: APR 2009 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 321752 577 321175 577 321175 ALBENI FALLS DAM ON 16553 177 16376 177 16376 BIG CLIFF DAM 0 23 -23 23 -23 BONNEVILLE DAM & LAK 448548 3944 444604 2958 445590 COUGAR DAM 9286 100 9186 100 9186 DETROIT DAM 23670 0 23670 0 23670 DEXTER DAM & LAKE ON 1382 10 1372 10 1372 GREEN PETER DAM 39660 72 39588 72 39588 HILLS CREEK DAM & LA 8910 44 8866 44 8866 JOHN DAY DAM & LAKE 916798 1655 915143 1158 915640 LOOKOUT POINT DAM & 21903 127 21776 127 21776 MCNARY DAM & LAKE WA 530347 2160 528187 760 529587 THE DALLES DAM & LAK 618661 1309 617352 969 617692 CHIEF JOSEPH DAM & E 948995 973 948022 973 948022 ICE HARBOR DAM 167319 1934 165385 387 166932 LITTLE GOOSE DAM & L 300015 516 299499 310 299706 LOWER MONUMENTAL DAM 319968 543 319425 326 319642 LIBBY DAM & LAKE KOO 63048 707 62341 707 62341 LOST CREEK DAM 26299 342 25957 150 26149 LOWER GRANITE DAM & 334997 1316 333681 526 334471 FOSTER DAM 7076 83 6993 83 6993 GRAND COULEE DAM 1758997 3867 1755130 3867 1755130 HUNGRY HORSE DAM 23022 0 23022 0 23022 TOTAL 6907206 20478 6886728 14304 6892902