EXHIBIT 21 SUBSIDIARIES 1. Puget Western, Inc. 19515 North Creek Parkway Suite 310 Bothell, Washington 98011 2. ConneXt 1301 Fifth Avenue Suite 1900 Seattle, WA 98101 3. Hydro Energy Development Corporation (HEDC) 1422 130th Ave. N.E. Bellevue, WA 98005 4. Homeguard Security Services, Inc. c/o James W. Eldredge 411 108th Ave. N.E., 15th Floor Bellevue, WA 98004-5515 5. Washington Energy Gas Marketing Company c/o James W. Eldredge 411 108th Ave. N.E., 15th Floor Bellevue, WA 98004-5515 6. WNG CAP I, Inc. c/o James W. Eldredge 411 108th Ave. N.E., 15th Floor Bellevue, WA 98004-5515 7. Puget Sound Energy Services, Inc. c/o James W. Eldredge 411 108th Ave. N.E., 15th Floor Bellevue, WA 98004-5515