Exhibit 21.1

WISCONSIN ENERGY CORPORATION
SUBSIDIARIES AS OF DECEMBER 31, 2003

The following table includes the subsidiaries of Wisconsin Energy Corporation, a diversified holding company incorporated in the state of Wisconsin, as well as the percent of ownership, as of December 31, 2003:

			State of
			Incorporation	Percent
Subsidiary (a)			or Organization	Ownership
Wisconsin Electric Power Company			Wisconsin	100%
	ATC Management Inc.		Wisconsin	40.1%
	American Transmission Company LLC		Wisconsin	34.59%
	Bostco LLC		Wisconsin	100%
WICOR, Inc.			Wisconsin	100%
	Wisconsin Gas Company		Wisconsin	100%
	Guardian Pipeline, L.L.C.		Delaware	33.33%
	WICOR Industries, Inc. (n/k/a WICOR Industries, LLC)		Wisconsin	100%
		Sta-Rite Industries, Inc (n/k/a Sta-Rite Industries, LLC)	Wisconsin	100%
		Hypro Corporation (n/k/a Hypro, LLC)	Delaware	100%
		SHURflo Pump Manufacturing Co. (n/k/a SHURflo, LLC)	California	100%
Edison Sault Electric Company			Michigan	100%
	American Transmission Company LLC		Wisconsin	4.81%
W.E. Power, LLC			Wisconsin	100%
	Elm Road Generating Station Supercritical, LLC		Wisconsin	100%
	Elm Road Services, LLC		Wisconsin	100%
	Port Washington Generating Station, LLC		Wisconsin	100%
Wisvest Corporation			Wisconsin	100%
	Androscoggin Energy LLC		Delaware	49.5%
	CET Two, LLC		Delaware	100%
		Calumet Energy Team, LLC	Delaware	100%
Minergy Corp.			Wisconsin	100%
	GlassPack, LLC		Wisconsin	100%
	Minergy Detroit, LLC		Wisconsin	100%
	Minergy Neenah, LLC		Wisconsin	100%
Wispark LLC			Wisconsin	100%
Wisconsin Energy Capital Corporation			Wisconsin	100%
WEC Nuclear Corporation			Wisconsin	100%
	Nuclear Management Company, LLC		Wisconsin	20%
Witech Corporation			Wisconsin	100%
WEC International, Inc.			Delaware	100%
Badger Service LLC			Wisconsin	100%
WEC Capital Trust I			Delaware	100%

(a)	Omits the names of certain subsidiaries, which if considered in the aggregate as a single
	subsidiary, would not constitute a "significant subsidiary" as of December 31, 2003.
	Indirectly owned subsidiaries are listed under the subsidiaries through which
	Wisconsin Energy Corporation holds ownership.