WSPP MEMBERSHIP

New Members Approved 8 New Members in 2004 New Member List

Direct Energy Marketing, Inc ATCO Power Canada, Ltd Citigroup Energy, Inc Public Utility District No. 1 of Okanogan County Calpine Energy Management, LP City of St. George Energy Services Manitoba Hydro Merrill Lynch Commodities, Inc.

WSPP MEMBERSHIP

WSPP Growth...... 14 at original filing in 1987 45 at permanent filing in

1991 55 end of 1993 (1st marketer

Sept ‘93); 101 by end of ‘95 41 new in ‘96; 42 in ‘97; 28

in ‘98; 7 in ‘99; 18 in ‘00; 237 by end of 2000

14(net) in ‘01; 11*(net) in ’02; 16 in ’03; 8 in ‘04

286 members total0255075100125150175200225250275300

WSPP MEMBERSHIP

Membership by Classification New members approved bring total to

286 Balance of power still maintained

(relative to 90%) 56 IOU (20%) 90 Public (31%) 130 Marketer (45%) 10 IPP (4%)

WSPP MEMBERSHIPMemberClassifications…. IOU’s 56 Publics 90 Marketers 130 IPP’s 10 Total 286

45%

31%

20%

4%0%

Mktr Public IOU

IPP QF