MONTHLY POWER PRODUCTION SUMMARY FOR: MAR 2007 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 136083 597 135486 597 135486 ALBENI FALLS DAM ON 15128 198 14930 198 14930 BIG CLIFF DAM 9423 51 9372 51 9372 BONNEVILLE DAM & LAK 562290 2893 559397 2170 560120 COUGAR DAM 9461 99 9362 99 9362 DETROIT DAM 29850 207 29643 207 29643 DEXTER DAM & LAKE ON 6505 10 6495 10 6495 GREEN PETER DAM 26450 55 26395 55 26395 HILLS CREEK DAM & LA 9676 87 9589 87 9589 JOHN DAY DAM & LAKE 1016255 1914 1014341 1340 1014915 LOOKOUT POINT DAM & 25821 146 25675 146 25675 MCNARY DAM & LAKE WA 647423 2009 645414 820 646603 THE DALLES DAM & LAK 841306 1588 839717 1175 840130 CHIEF JOSEPH DAM & E 1076882 1268 1075614 1268 1075614 ICE HARBOR DAM 236349 2404 233944 481 235868 LITTLE GOOSE DAM & L 221994 585 221409 351 221643 LOWER MONUMENTAL DAM 252489 568 251922 341 252149 LIBBY DAM & LAKE KOO 77819 837 76982 837 76982 LOST CREEK DAM 30416 599 29817 264 30152 LOWER GRANITE DAM & 234706 1406 233300 562 234144 FOSTER DAM 4780 109 4671 109 4671 GRAND COULEE DAM 2001541 2741 1998800 2741 1998800 HUNGRY HORSE DAM 61831 0 61831 0 61831 TOTAL 7534478 20372 7514106 13909 7520570