Exhibit 21

Subsidiaries of the Registrants as of February 16, 2022 (1)

			State of Incorporation
Eversource Energy (a Massachusetts business trust) (2)			MA
The Connecticut Light and Power Company (2) (3)			CT
Connecticut Yankee Atomic Power Company (4)			CT
Eversource Energy Service Company			CT
Eversource Energy Transmission Ventures, Inc.			CT
Eversource Gas Transmission LLC			MA
Eversource Gas Transmission II LLC			MA
Eversource LNG Service Company LLC			MA
Northern Pass Transmission LLC			NH
Renewable Properties, Inc.			NH
Eversource Holdco Corporation			MA
Eversource Investment LLC			MA
Eversource Investment Service Company LLC			MA
Aquarion Company			DE
Aquarion Water Company			CT
Aquarion Water Company of Connecticut			CT
Aquarion Water Company of Massachusetts, Inc.			MA
Aquarion Water Capital of Massachusetts, Inc.			DE
Aquarion Water Company of New Hampshire, Inc.			NH
Abenaki Water Co., Inc.			NH
Homeowner Safety Valve Company			DE
New England Service Company			CT
HWP Company			MA
North Atlantic Energy Corporation			NH
North Atlantic Energy Service Corporation			NH
Northeast Nuclear Energy Company			CT
NSTAR Electric Company (2) (3)			MA
Harbor Electric Energy Company			MA
Public Service Company of New Hampshire (2) (3)			NH
Properties, Inc.			NH
PSNH Funding LLC 3			DE
The Rocky River Realty Company			CT
Yankee Atomic Electric Company (4)			MA
Yankee Energy System, Inc.			CT
Eversource Gas Company of Massachusetts (3)			MA
Hopkinton LNG Corp.			MA
NSTAR Gas Company (3)			MA
Yankee Gas Services Company (3)			CT

(1)    The names of some of our subsidiaries which, if considered in the aggregate as a single subsidiary, would not constitute a “significant subsidiary,” have been omitted in accordance with Item 601(b)(21)(ii) of Regulation S-K.

(2)    SEC Registrant.

(3)    This entity is doing business as Eversource Energy.

(4)    For The Connecticut Light and Power Company, NSTAR Electric Company and Public Service Company of New Hampshire, investments in Connecticut Yankee Atomic Power Company and Yankee Atomic Electric Company are accounted for under the equity method.