Exhibit 21

Subsidiaries of the Registrants

				State of Incorporation
Northeast Utilities (a Massachusetts business trust)*				MA
	The Connecticut Light and Power Company*			CT
		CL&P Funding LLC		DE
	HWP Company			MA
	North Atlantic Energy Corporation			NH
	North Atlantic Energy Service Corporation			NH
	Northeast Nuclear Energy Company			CT
	Northeast Utilities Service Company			CT
	NSTAR LLC			MA
		Advanced Energy Systems, Inc.		MA
		Hopkinton LNG Corp.		MA
		NSTAR Gas Company		MA
		NSTAR Electric Company*		MA
			Harbor Electric Energy Company	MA
			BEC Funding II, LLC	DE
			CEC Funding, LLC	DE
		NSTAR Communications, Inc.		MA
		NSTAR Electric & Gas Corporation		MA
	NU Enterprises, Inc.			CT
		Select Energy Contracting, Inc.		MA
		Mode 1 Communications, Inc.		CT
		Northeast Generation Services Company		CT
			E. S. Boulos Company	CT
			NGS Mechanical, Inc.	CT
		Select Energy, Inc.		CT
	NU Transmission Ventures, Inc.			CT
		Northern Pass Transmission LLC		NH
		Renewable Properties, Inc.		NH
	Public Service Company of New Hampshire*			NH
		Properties, Inc.		NH
		PSNH Funding LLC		DE
		PSNH Funding LLC 2		DE
	The Rocky River Realty Company			CT
	Western Massachusetts Electric Company*			MA
		WMECO Funding LLC		DE
	Yankee Energy System, Inc.			CT
		Yankee Energy Financial Services Company		CT
		Yankee Energy Services Company		CT
		Yankee Gas Services Company		CT

*Indicates an SEC Registrant.