Geothermal Heat Pumps
Geothermal Heat Pump Rebates
Through the Connecticut Energy Efficiency Fund, United Illuminating is offering a $500 per ton incentive (maximum incentive is $3,000) for the installation of ARI-rated geothermal systems. Please note that these geothermal systems must be performance-tested in order to qualify for the incentive.
Download the rebate application below and use the appropriate Verification of Installed Performance spreadsheets below. You may also qualify for federal tax credits for installing these energy-efficient systems in your home.
Geothermal Rebate Application
Federal Tax Credit W-9 Form
What is a Geothermal Heat Pump?
Though similar to air-source heat pumps, geothermal heat pumps use the ground instead of outside air to provide both heating and air conditioning. Geothermal heat pumps are among the most efficient heating and cooling technologies currently available because they use the earth's stable temperature. Once they are installed, a home or building owner can save money on their heating/cooling bills and save the environment by reducing the amount of pollution produce by fossil fuel systems.
Types of Geothermal Heat Pump Systems
There are four basic types of ground loop systems. Three of these—horizontal, vertical, and pond/lake—are closed-loop systems. The fourth type of system is the open-loop option. Which one of these is best depends on the climate, soil conditions, available land, and local installation costs at the site. All of these approaches can be used for residential and commercial building applications.1
Closed-Loop Systems
Horizontal
This type of installation is generally most cost-effective for residential installations, particularly for new construction where sufficient land is available. It requires trenches at least four feet deep. The most common layouts either use two pipes, one buried at six feet, and the other at four feet, or two pipes placed side-by-side at five feet in the ground in a two-foot wide trench. The Slinky™ method of looping pipe allows more pipe in a shorter trench, which cuts down on installation costs and makes horizontal installation possible in areas it would not be with conventional horizontal applications.1
Open-Loop System
This type of system uses well or surface body water as the heat exchange fluid that circulates directly through the GHP system. Once it has circulated through the system, the water returns to the ground through the well, a recharge well, or surface discharge. This option is obviously practical only where there is an adequate supply of relatively clean water, and all local codes and regulations regarding groundwater discharge are met. 1
Source
1: U.S. Department of Energy - www.eere.energy.gov
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