
Energy sources · Geothermal
Heating and cooling from the ground.
Geothermal heat pumps use the steady temperature underground to heat and cool your building with far less energy.
How it works
How geothermal heats and cools.
Pipes in the ground
Steady temperature
Heat pump
Heat and cooling
Your building
- Pipes under a lawn or parking lot reach steady ground temperature
- A heat pump moves that heat in or out
- Your building is heated in winter and cooled in summer
Why it pays
The air swings with the seasons. The ground doesn't.
Outdoor air temperatureGround temperature
Where it fits
Which buildings it suits.
What decides it
What your Scorecard checks.
When your HVAC is due
Heating and cooling bills
Open land for the pipes
Tax credit timing
Works well with





