MONTHLY POWER PRODUCTION SUMMARY FOR: APR 2012 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 319037 633 318404 633 318404 ALBENI FALLS DAM ON 15543 154 15389 154 15389 BIG CLIFF DAM 9875 60 9815 60 9815 BONNEVILLE DAM & LAK 513571 2625 510946 1969 511602 COUGAR DAM 11316 95 11221 95 11221 DETROIT DAM 27716 240 27476 240 27476 DEXTER DAM & LAKE ON 11144 12 11132 12 11132 GREEN PETER DAM 29890 55 29835 55 29835 HILLS CREEK DAM & LA 14630 66 14564 66 14564 JOHN DAY DAM & LAKE 1076028 1814 1074214 1270 1074758 LOOKOUT POINT DAM & 32561 137 32424 137 32424 MCNARY DAM & LAKE WA 532337 2880 529457 760 531577 THE DALLES DAM & LAK 777299 720 776579 533 776767 CHIEF JOSEPH DAM & E 1109306 937 1108369 937 1108369 ICE HARBOR DAM 212250 1919 210331 384 211866 LITTLE GOOSE DAM & L 390763 566 390197 340 390423 LOWER MONUMENTAL DAM 430002 455 429546 273 429728 LIBBY DAM & LAKE KOO 283093 668 282425 668 282425 LOST CREEK DAM 26204 294 25910 129 26075 LOWER GRANITE DAM & 425332 1295 424037 518 424814 FOSTER DAM 9167 68 9099 68 9099 GRAND COULEE DAM 2386069 1725 2384344 1725 2384344 HUNGRY HORSE DAM 185639 0 185639 0 185639 TOTAL 8828771 17418 8811353 11025 8817746