Explore
  • Solar PV
    Solar Photovoltaic (PV) Systems convert sunlight into electricity. You can use this electricity to power your home, business or any other building.
    Learn More
  • Solar
    Hot Water
    Solar Thermal Water Heating Systems use the sun's energy to heat water for use by homes, commercial buildings and swimming pools.
    Learn More
  • Solar Space
    Heating
    Solar Thermal Space Heating Systems capture the sun's energy to supplement the existing heating system for a home or commercial building.
    Learn More
  • Small Wind
    Small Wind Energy Systems contain electric generators that convert wind power into clean, emissions-free power.
    Learn More
  • Geothermal
    Geothermal heat pumps use the earth's energy to provide heating, cooling and hot water for residential and commercial buildings.
    Learn More
  • Biomass
    & Bio Fuel
    Biomass Heating Systems generate heat from organic materials and residues. The systems are used for space heating and to heat water.
    Learn More
  • Combined
    Heat & Power
    Micro Combined Heat and Power Systems are highly efficient natural gas systems that produce electricity and heat at the same time.
    Learn More
LandCert

LandCert : The only land use regulatory property research platform in Massachusetts

Case Studies

See some of the amazing solar systems at work in the country today.

View Case Studies
The EnergySage Wizard

Which type of clean energy is suitable for you?

Get Started

Geothermal

Geothermal heat pumps also known as ground source heat pumps use the earth's energy to provide heating, cooling and hot water for residential and commercial buildings anywhere in the United States.

Overview

Geothermal Heat Pumps Explained by DOE
Geothermal Systems Explained
Geothermal Explained
GeoExchange Heating and Cooling System
Benefits of Geothermal Heating and Cooling
Geothermal Installation in Action

Geothermal systems are a proven, reliable technology that has been used for decades around the world.

  • The heat pumps carry a warranty of 5-10 years, and usually last for over 25 years.
  • The underground pipes carry a warranty of 50 years.

They can be installed almost anywhere in the United States. They take advantage of nearly constant temperature of the earth.

  • The temperature a few feet below the surface is a constant 50 - 60 degree Fahrenheit.  
  • This temperature is warmer than the air above it in the winter and cooler in the summer.

A single system can reduce the cost of heating by 50% - 70%, and cost of air-conditioning and hot water by up to 50%. The savings may be significantly higher if you are replacing an old, inefficient heating and air-conditioning systems.

Typical residential systems cost between $15,000 and $40,000 and commercial systems can cost in the tens or hundreds of thousand dollars.

  • Heat pumps costs range from $2,500 - $7,500.
  • Cost to drill and lay pipes / tubes to support the geothermal system cost an additional $5,000 - $25,000.
  • Cost is driven by the location, property characteristics, type of loop installed, etc.

Net cost of these systems is significantly lower as the property owner can claim 30% of the total system cost as tax credit. Additional incentives from local governments or utilities can further reduce the net cost of the system.

A residential system can generate an annual return on investment (ROI) of 8%-20% while commercial systems' annual ROI can exceed 30%. Annual returns get better as energy prices rise every year.

Geothermal Systems are suitable for property owners who have high heating, air-conditioning and hot water bills, and have sufficient space (land) available to install the pipes in the ground and have suitable distribution system in the property (e.g., forced air systems, radiant heating systems).

  • Residential systems can be installed in yards as small as a third of an acre.  
  • They can easily be integrated into your existing heating and cooling systems.
  • Since geothermal systems have no outside condensing units like air conditioners, they are quieter to operate.

Almost 50,000 geothermal systems are installed in the U.S. every year. This number is increasingly rapidly as more HVAC contractors start offering these systems and more people find out about them.