Electric – Natural Gas
Norwich Utilities builds, maintains and repairs the local electricity distribution system, including substations, power lines and poles. We also purchase and manage the electricity our communities need by interfacing with transmission companies and generators.
Most of the electricity used by Norwich comes from sources such as coal, gas and nuclear. But the NPU also owns and operates three local sources of hydroelectric power, known as "green energy" because it is less harmful to the environment.
natural gas service
Supplying gas to customers in Norwich, we build and maintain local distribution systems, store gas and buy it from wholesale suppliers. Many customers find it a more convenient option, and it’s considered cleaner-burning than other fossil fuels. NPU currently manages approximately 500,000 feet of gas mains.
If you would like to find out if natural gas service is available in your area or have other service questions, please call 860-887-2555 or email to
Converting to natural gas is easy and affordable!
NPU has a comprehensive program that combines financial incentives with conversion cost discounts to make the decision to switch to natural gas a reasonable option. For detailed program information, please call 860-823-4514 or email to email@example.com .
Customer-Owned Underground Natural Gas Pipelines: Some underground natural gas pipelines are the private property of the owner. Customer-owned pipeline is defined as any buried gas line away from the gas meter. Typically, customer-owned natural gas lines are used to supply hot water and hot water to another structure, such as a detached garage, but can also be used to heat swimming pools and cook on gas grills. If you have this type of gas line on your property, it is your responsibility to have any inspection and necessary repair or replacement of the customer-owned gas line performed by a qualified professional such as a licensed heating/cooling contractor or plumber. If the pipeline is metal, the buried gas pipeline should be checked regularly for leaks and corrosion. If a gas leak is detected, it may be necessary to temporarily interrupt your gas service until repairs can be made. Please remember to dial the toll-free number before calling (by dialing 811). Before undertaking any excavation work, it is important to know the exact location of all underground utilities. When digging near buried gas lines, all excavation work must be done by hand.
If you suspect a gas line problem, call 860-887-7207 Call the NPU’s natural gas emergency line.
Excess flow valve customer notice
As of April 14, 2017, new federal regulations require all natural gas utilities to notify customers of the availability of an optional natural gas shutoff device called an excess flow valve (EFV). For more information, click here.
Norwich Utilities maintains and operates the city's 8.5 million gallons per day sewage treatment plant and sewer sewage distribution system (main and pumping stations). Sewage treatment plants are an important part of our city's efforts to control pollution and protect local water sources. Wastewater treatment plants protect public health from disease-causing bacteria and viruses. By protecting the water quality of our rivers and streams, wastewater treatment plants allow us to enjoy the natural beauty of our communities.
Residents of Norwich get their water from two sources - the Dr Charles W. Solomon Water Treatment Works, which draws water from the Deep River Reservoir in Colchester, and the Stony Brook Treatment Works and Reservoir in Montville. In addition, Norwich has two water supply facilities that can be developed: Fairview Reservoir and Marsh Meadows Reservoir.