What is Geothermal Energy?
Eversource is preparing to test networked geothermal heating and cooling technology.
The networked geothermal system uses wells, piping and pumps to pull the earth's heat out of the ground to warm buildings in winter and pumps heat from buildings back into the ground in summer to cool them. More specifics are available from the U.S. Department of Energy.
This technology is in everyday use in the U.S. and around the world. We're piloting its use at scale in an eastern Massachusetts neighborhood as a potential option to complement or replace delivered fuels and natural gas service for heating and cooling.
Anyone interested in commenting on the Eversource geothermal implementation plan may submit written comments to the Department of Public Utilities no later than 5 p.m. on Friday, July 9. You can read the full notice of filing and request for comments here.
About Our Pilot Program
- We're looking for a mixed group of about 100 residential and commercial or industrial customers in the same neighborhood. A dense cluster of diverse customers provides the best possible pilot.
- Applicants must currently receive either delivered fuels (heating oil or propane) or Eversource natural gas service in the qualifying eastern Massachusetts territory*.
- Properties with certain types of existing ductwork may be preferred.
- Eversource will enter into an agreement for the duration of the pilot, which will be three years.
What Pilot Customers Receive
- Eversource will pay for all the equipment to be installed in the home or business.
- Eversource will also pay for, and be responsible for, all equipment, installation and maintenance costs of the networked geothermal system outside of the home or business.
- They get a cost-effective, low-carbon source of heating and cooling. Based on our review, geothermal energy can reduce the average residential customer's carbon emissions by up to 60 percent.
- They will not have to pay any commodity charges for heating and cooling for this pilot. The geothermal energy is free. We expect a low monthly fee for customers that will be used to fund this pilot.
- The technology is proven, but if something goes wrong or if they want an alternate heating and cooling service, we will work to ensure the continued heating and cooling of your property and your personal comfort.
We plan to identify the pilot location and customers in spring 2021, install the system and associated equipment this summer and fall, and begin the pilot in November 2021.
We will continue to post updates on our progress here.