MONTHLY POWER PRODUCTION SUMMARY FOR: APR 2000 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 306496 576 305920 576 305920 ALBENI FALLS DAM ON 13333 183 13150 183 13150 BIG CLIFF DAM 9534 36 9498 36 9498 BONNEVILLE DAM & LAK 564988 2934 562054 2200 562788 COUGAR DAM 16172 67 16105 67 16105 DETROIT DAM 39750 185 39565 185 39565 DEXTER DAM & LAKE ON 8205 24 8181 24 8181 GREEN PETER DAM 18746 72 18674 72 18674 HILLS CREEK DAM & LA 19590 59 19531 59 19531 JOHN DAY DAM & LAKE 1161460 1753 1159707 1227 1160233 LOOKOUT POINT DAM & 34102 145 33957 145 33957 MCNARY DAM & LAKE WA 577758 2864 574894 760 576998 THE DALLES DAM & LAK 782852 1340 781512 992 781860 CHIEF JOSEPH DAM & E 1234293 851 1233442 851 1233442 ICE HARBOR DAM 170012 2119 167893 424 169588 LITTLE GOOSE DAM & L 357883 521 357362 313 357570 LOWER MONUMENTAL DAM 334353 455 333898 273 334080 LIBBY DAM & LAKE KOO 46092 665 45427 665 45427 LOST CREEK DAM 35178 522 34656 230 34948 LOWER GRANITE DAM & 361538 1346 360192 538 361000 FOSTER DAM 9542 123 9419 123 9419 GRAND COULEE DAM 2150636 8015 2142621 8015 2142621 HUNGRY HORSE DAM 116972 0 116972 0 116972 TOTAL 8369485 24855 8344630 17958 8351528