MONTHLY POWER PRODUCTION SUMMARY FOR: APR 1998
 
                    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              142750              523               142227             523            142227
ALBENI FALLS DAM ON        20978              154                20824             154             20824
BIG CLIFF DAM               2996               43                 2953              43              2953
BONNEVILLE DAM & LAK      424443             2819               421624            2114            422329
COUGAR DAM                  5217               71                 5146              71              5146
DETROIT DAM                17950              192                17758             192             17758
DEXTER DAM & LAKE ON           0                0                    0               0                 0
GREEN PETER DAM             7421               49                 7372              49              7372
HILLS CREEK DAM & LA       12207               51                12156              51             12156
JOHN DAY DAM & LAKE       768130             1602               766528            1121            767009
LOOKOUT POINT DAM &        12323              160                12163             160             12163
MCNARY DAM & LAKE WA      482643             3278               479365             760            481883
THE DALLES DAM & LAK      550815             1365               549450            1010            549805
CHIEF JOSEPH DAM & E      642738             1110               641628            1110            641628
ICE HARBOR DAM            129038             2046               126992             409            128629
LITTLE GOOSE DAM & L      230644              523               230121             314            230330
LOWER MONUMENTAL DAM      265799              661               265138             397            265402
LIBBY DAM & LAKE KOO       58882              592                58290             592             58290
LOST CREEK DAM             30023              369                29654             162             29861
LOWER GRANITE DAM &       272604             1313               271291             525            272079
FOSTER DAM                  6565              120                 6445             120              6445
GRAND COULEE DAM         1151369             7943              1143426            7943           1143426
HUNGRY HORSE DAM            1586                0                 1586               0              1586
 
 
TOTAL                    5237121            24984              5212137           17821           5219300