Geothermal Heat Pumps
How it Works
Unlike the air, the ground (or groundwater) remains at a consistent temperature throughout the year—around 55°F. Geothermal takes advantage of the steady temperature by transferring heat stored in the earth into a building during the winter, and transferring it out of the building and back into the ground during the summer. In addition to space conditioning, geothermal heat pumps equipped with desuperheaters can also produce hot water by transferring excess heat from the pump’s compressor to the building’s hot water tank.
The system includes three principal components:
- Ground Loop
A series of connected pipes buried in the ground circulate water to absorb heat from, or relinquish heat to, the surrounding soil, depending on whether the system is providing heat or cooling. In other words, the system uses the earth as a heat source during winter and a heat sink during summer.
- Heat Pump
The mechanical system that compresses a refrigerant to efficiently move heat into or out of a building. During winter, the heat pump removes heat from the water in the ground loop and transfers it to the building. During summer, the process is reversed.
- Heat Distribution Subsystem
Conventional ductwork is generally used to distribute heated or cooled air from the geothermal heat pump throughout the building.
Rather than producing heat through the combustion of fossil fuels, geothermal (also known as ground-source) heat pumps can efficiently extract the heat that naturally exists in the ground. Geothermal systems are easy to operate and, with available incentives, can be cost competitive with fuel oil systems on a lifetime basis. While they require some space to install the ground loops, there is no exposed equipment outdoors.
Geothermal Rebates and Incentives
Westchester Con Edison Ground Source Heat Pump Rebate
If you heat your home with fuel oil, propane, or natural gas, and cool it with electricity, geothermal is a smart upgrade. Now, through our partnership with Dandelion Energy, it’s never been easier—or more affordable—to switch your home over to geothermal.
We’re offering qualified Westchester homeowners up to $5,000 off a home geothermal system. When combined with state and federal incentives, you could save tens of thousands of dollars in installation costs.
This rebate is part of Smart Solutions, a suite of programs designed to meet customers’ heating needs cost effectively while advancing state and local environmental goals to reduce reliance on fossil fuels.
NYSERDA Ground Source Heat Pump Rebate
New York State Energy Research and Development Authority (NYSERDA) will provide participating installers and designers with $1,200 to $1,500 per cooling ton for qualified ground source heat pump systems installed.
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