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Ground Source Heat Pumps
Ground Source Heat Pumps » Central Hudson » Energy Efficiency » Ground Source Heat Pumps

Geothermal Heat pumps provide space heating and cooling throughout the year, and can provide hot water for residential and commercial buildings. The loop system technology leverages the naturally occurring differences between above-ground and subsurface temperatures and is a renewable and sustainable energy source, consistent with wind and solar energy.

How to save $264/year with Geothermal
It’s as easy as 1,2,3!

1. Join the NYSERDA Ground-Source Heat Pump Program (link "join" to the program)
2. Next, sign up for Insights+
3. Then, receive your annual check on June 30th

Participation with NYSERDA’s Ground Source Heat Pump Program and Central Hudson’s Insights+ subscription service are mandatory in order to receive the credit. System installation and program registration must occur on or after July 1, 2018.

When compared to conventional HVAC systems, geothermal systems can reduce annual heating costs by as much as 50% and cooling costs by up to 35%. Reducing environmental impact is an additional benefit that is attractive to many geothermal system buyers. Annual operating costs fluctuate with the electric supply and delivery rates required to run the systems.

Installation costs vary based on the type of loop system (usually vertical or horizontal), soil type and other factors in your local environment. On average, a typical home of 2500 square feet, with a heating load of 60,000 BTU and a cooling load of 60,000 BTU can cost $20,000 to $25,000 to install. 

The time it takes to recover the initial investment depends on utilization of available rebates and tax credits (up to 30%), and the amount of energy utilized annually. Recouping costs could take as little as four years.

Central Hudson customers who install a geothermal system through the NYSERDA Ground-Source Heat Pump Rebate initiative and sign-up for an Insights+ subscription are eligible to receive an annual credit of $264.

 

How does a geothermal system work?

There are two types of geothermal systems:

Direct-Use Geothermal

  • Pumping: A well is drilled to tap into hot ground water so that a  pumping system may be installed, although in some cases, hot water or steam may rise up through the well without active pumping.
  • Delivery: Hot water or steam can be used directly in a variety of applications, or it can be cycled through a heat exchanger.
  • Refilling: Depending on the use requirements of the system and the conditions of the site, the ground water aquifer may need to be replenished with water from the surface. In some cases, the movement of ground water might refill the aquifer naturally.

Deep & Enhanced Geothermal

  • Pumping: Hot water or steam is pumped up through a deep well. As the water rises to the surface, the pressure drops and the water vaporizes into superheated steam that can be used for high-temperature processes.
  • Delivery: The heat from the hot water or steam can be used to heat a secondary fluid (a "binary" process), or the hot water or steam can be used directly.
  • Recirculation: Once the heat is transferred to the delivery system, the now-cooler water is pumped back underground.
  • Dispersal: Unlike ground source heat pumps, used ground water in this case is simply injected and allowed to disperse back into the ground, rather than being pumped through a closed loop of pipes.

 

Electric Air-Source Heat Pumps

An air-source heat pump can provide efficient heating and cooling for your home. They work similarly to central AC systems in that they cool your house when needed; they are also capable of working in reverse to efficiently space heat your home during cooler weather.

When properly installed, an air-source heat pump can deliver one-and-a-half to three times more heat energy to a home than the electrical energy it consumes. This is possible because a heat pump moves heat rather than converting it from a fuel like combustion heating systems do.

Heat pump installation costs range significantly based on the size and number of rooms in your home and the preferred type of pump, brand, and capacity.  The time it takes to recover the initial investment depends on utilization of available rebates and the amount of energy utilized annually.

Calculate your return-on-investment (ROI) with ENERGY STAR's Air Source ROI calculator . Note this is an Excel based file that you will be prompted to download.

Types of Electric Air-Source Heat Pump systems:

Ductless, Ducted and Short-Run Ducted Systems
Ductless applications require minimal construction and alterations to the home. An approximate three-inch hole is cut through the wall in order to connect the outdoor condenser and the indoor heads; pipe connecting the units is fixed on the external wall(s) of the home, and can typically be painted to blend with the exterior façade. Ductless systems are often installed in additions or other areas of the home that experience temperature differences from central HVAC systems.

Ducted systems utilize existing or newly installed ductwork to circulate conditioned air throughout the home.

Short-run ducted is traditional large ductwork that only runs through a small section of the house.  Short-run ducted is often complemented by other ductless units for the remainder of the house.

Split vs. Packaged
Most heat pumps are split-systems—that is, they have one coil inside and one outside. Supply and return ducts connect to the indoor central fan. Packaged systems usually have both coils and the fan outdoors. Heated or cooled air is delivered to the interior from ductwork that passes through a wall or roof.

Multi-Zone vs. Single-Zone
Single-zone systems are designed for a single room with one outdoor condenser matched to one indoor head. Multi-zone installations can have two or more indoor heads connected to one outdoor condenser. Multi-zone indoor heads vary by size and style and each creates its own "zone" of comfort, allowing you to heat or cool individual rooms, hallways, and open spaces. This distinction may also be referred to as "multi-head vs. single-head" and "multi-port vs. single-port."