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Geothermal Energy


Introducing our geothermal energy program.

We’re committed to finding new ways to provide our customers with cleaner energy while helping them use energy more efficiently. As part of our vision to achieve net zero greenhouse gas emissions by 2050, we’re evaluating the potential for thermal energy to provide highly efficient space and water heating for our customers in place of natural gas heating during the clean energy transition.

Our projects are subject to the approval of the Massachusetts Department of Public Utilities.

How do geothermal energy systems work?

A geothermal system transports heat through a buried piping network, circulating water with an environmentally friendly additive. The constant temperature of the ground is used as a heat source during winter and transfers indoor heat to the ground for cooling during the summer.

Heating mode

Cooling mode

Lowell, MA: We are partnering with the University of Massachusetts Lowell and the City of Lowell on our networked geothermal pilot. The project will provide clean and efficient geothermal space conditioning to both residential and commercial buildings in the area. 

More information here

While each project has unique requirements, common appliances included in our programs are:

Ground-source heat pump
Also known as geothermal heat pumps, extract heat from the ground during cold weather via an underground pipe system, which is then distributed throughout your home. During warmer months, the process is reversed to provide cooling. This system is the most efficient type of heat pump and will provide all the heating and cooling in your home.

Electric Water Heater
If switching from an alternative fuel source, the program may cover the costs of a new energy efficient water heater. Depending on the space and air-flow of where the unit is located, a traditional electric water heater or an electric heat pump water heater may be installed. A traditional water heater uses electricity to raise the temperature of the water. A heat pump water heater moves existing heat from one place to another, instead of generating heat directly.

Electric Cooktop or Stove
If switching from an alternative fuel source, the program may cover the costs of a new, electric cooktop or stove such as a traditional stove or an induction cooktop. A traditional electric stove uses electricity to heat an element which transfers the heat through contact with the bottom of the pans. An induction cooktop is a flat, glass-topped cooktop that generates an electromagnetic energy charge that interacts with compatible pots and pans. This interaction causes the cookware itself to heat up while the glass top surrounding the element stays cool.

Warmer: Heat pumps spread the warmth more efficiently than conventional oil, propane or electric resistance heating systems.

Cooler: Heat pumps cool more efficiently when summer temperatures climb saving you both money and energy.

Comfier and cozier: Heat pumps provide quiet, even heating and cooling throughout your home or business.

Easier: Heat pumps last longer than conventional furnaces and AC units and require minimal maintenance.

Cleaner, healthier and safer: There is no combustion of fossil fuels, fuel storage or carbon monoxide emissions associated with heat pumps. A residential customer can reduce their carbon footprint by up to 60%.

Want to learn more?

Use this form to get more information on our existing or upcoming geothermal projects.

Geothermal Contact Form