Northeast Utilities (NYSE: NU), a Fortune 500 and Standard & Poor’s 500 energy company based in Connecticut and Massachusetts, operates New England’s largest energy delivery system. NU is committed to safety, reliability, environmental leadership and stewardship, and expanding energy options for its more than 3.6 million electricity and natural gas customers.

Information included on this page: Subsidiaries, Service Territories, Rates, and Generation.

Subsidiaries

Electric

• The Connecticut Light and Power Company (CL&P)
• NSTAR Electric (NSTAR)
• Public Service Company of New Hampshire (PSNH)
• Western Massachusetts Electric Company (WMECo)

Gas

• Hopkinton LNG Corp.
• NSTAR Gas (NSTAR)
• Yankee Gas Services Company (Yankee Gas)

Support

• Northeast Utilities Service Company provides centralized administrative support to NU's subsidiaries.
• NSTAR Electric and Gas Corporation provides centralized administrative support to NSTAR's subsidiaries.

Realty

• The Rocky River Realty Company (Connecticut and Massachusetts)
• Properties, Inc. (New Hampshire)
• Renewable Properties, Inc.

Service Territories, Transmission and Distribution

• NSTAR
• View Service Area Maps (958KB)

Electric

Operating Company	Territory in Square Miles	Communities	Customers	More Information
CL&P	4,400	149 in CT	1,215,000	www.cl-p.com
NSTAR Electric*	1,702	81 in MA	1,168,000	www.nstar.com
PSNH	5,628	211 in NH	500,000	www.psnh.com
WMECo	1,490	59 in MA	207,000	www.wmeco.com
NSTAR Gas*	1,067	51 in MA	272,000	www.nstar.com
Yankee Gas	2,341	71 in CT	212,000	www.yankeegas.com

*Some NSTAR customers are both gas and electric customers

Type	Quantity
Transmission Lines	4,500 circuit miles
Distribution Lines	72,000 pole miles
Transmission and Distribution Substations	769
Distribution Transformers	449,737

Natural Gas

Type	Yankee Gas	NSTAR Gas
Natural Gas Pipelines	3,275 miles	3,184 miles 1
Liquid Natural Plants	1	2

¹ As of 12/31/11

Type	Quantity
Mains	3,239
Services	341,285
Liquid Natural Gas	2

Rate Information

Electric

• CL&P
  Rate information for Connecticut Light & Power is available at the CL&P website.


• NSTAR Electric
  Rate information for NSTAR Electric is available at the NSTAR website.


• PSNH
  Rate information for Public Service Company of New Hampshire is available at the PSNH website.


• WMECo
  Rate information for Western Massachusetts Electric Company is available at the WMECo website.

Gas

• NSTAR Gas
  Rate information for NSTAR Gas is available at the NSTAR website.


• Yankee Gas
  Rate information for Yankee Gas Services Company is available at the Yankee Gas website.

Generation

New Hampshire Region Lost Nation* Merrimack Newington Schiller White Lake*

Northeast Hydroelectric Stations Hydroelectric

* Combustion Turbine Stations