Partner Utilities

For more than a decade, Connecticut has been ranked as one of the top states in the nation for energy efficiency.

One of the easiest, most cost-effective ways to collectively save money, energy efficiency initiatives also create jobs, reduce greenhouse gas emissions, enhance energy security, and reduce the need for additional generation plant construction.

Since 1998, Connecticut’s energy-efficiency programs have helped small and large businesses, homeowners and renters, and state and local governments manage their energy use and costs. These programs and services are administered and delivered by Connecticut’s electric and gas utilities, which provide the energy expertise to help their customers save energy and money.  Funding comes from customers through the Combined Public Benefits Charge on their electric bill and through a conservation charge included in natural gas rates.


The Connecticut Light and Power

As state’s largest electric utility, the Connecticut Light and Power Company (CL&P) has been part of everyday life in Connecticut for more than 100 years, safely delivering reliable electric service to homes, neighborhoods and businesses. CL&P is committed to Connecticut, and committed to becoming a leader in emergency preparedness and response, a mission its employees take personally. With 1.2 million customers in 149 cities and towns, they offer programs to help save energy and money; support local communities through economic development, sponsorships and volunteerism; invest in infrastructure and programs to meet future energy needs; and are stewards of our natural environment.

The United Illuminating

The United Illuminating Company (UI) is a New Haven-based regional electric distribution company established in 1899. UI is engaged in the purchase, transmission, distribution and sale of electricity and related services to more than 324,000 residential, commercial and industrial customers in the Greater New Haven and Bridgeport areas. UI spearhead's conservation efforts, encourages economic growth, assists area businesses and funds important charity organizations through established and often one-of-a-kind programs.


Connecticut Natural Gas Corporation

Connecticut Natural Gas Corporation conducts natural gas transportation and distribution operations in Connecticut serving approximately 160,000 customers in its service territory of approximately 716 square miles in the Greater Hartford-New Britain area and Greenwich, Connecticut.

Southern Connecticut Gas Company

The Southern Connecticut Gas Company conducts natural gas transportation and distribution operations in Connecticut serving approximately 178,000 customers in its service territory of approximately 512 square miles along the southern Connecticut coast from Westport to Old Saybrook and includes communities of Bridgeport and New Haven.

Yankee Gas Services Company

Yankee Gas, Connecticut's largest natural gas distribution company, delivers natural gas to approximately 208,000 customers in 71 cities and towns throughout the state.