MONTHLY POWER PRODUCTION SUMMARY FOR: MAY 1981 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 290532 396 290136 396 290136 ALBENI FALLS DAM ON 24641 174 24467 174 24467 BIG CLIFF DAM 7689 44 7645 44 7645 BONNEVILLE DAM & LAK 419007 1441 417566 1081 417926 COUGAR DAM 8971 51 8920 51 8920 DETROIT DAM 30250 206 30044 206 30044 DEXTER DAM & LAKE ON 2183 16 2167 16 2167 GREEN PETER DAM 19449 229 19220 229 19220 HILLS CREEK DAM & LA 10835 31 10804 31 10804 JOHN DAY DAM & LAKE 1185903 1538 1184365 1077 1184826 LOOKOUT POINT DAM & 13327 101 13226 101 13226 MCNARY DAM & LAKE WA 773143 2548 770595 780 772363 THE DALLES DAM & LAK 962517 1600 960917 1184 961333 CHIEF JOSEPH DAM & E 1125473 1000 1124473 1000 1124473 ICE HARBOR DAM 362670 1130 361540 226 362444 LITTLE GOOSE DAM & L 463248 528 462720 317 462931 LOWER MONUMENTAL DAM 381234 516 380718 310 380924 LIBBY DAM & LAKE KOO 47544 320 47224 320 47224 LOST CREEK DAM 25134 143 24991 63 25071 LOWER GRANITE DAM & 436877 1296 435581 518 436359 FOSTER DAM 8231 119 8112 119 8112 GRAND COULEE DAM 1951277 2735 1948542 2735 1948542 HUNGRY HORSE DAM 84388 --- --- --- --- TOTAL 8634523 16162 8533973 10977 8539158