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Geothermal Heat Pumps
                                         

Data For: 2006
Release Date: April 2008
Next Release Date: April 2009

Table 3.1 Geothermal Heat Pump Shipments by Model Type, 2000-2006
(Number of Units)
Model2000200120022003200420052006
 ARI-3207,808NA6,44510,3069,1309,41110,968
 ARI-325/33026,219NA26,80225,21131,85534,86147,440
 Other Non-ARI Rated1,554NA3,8929222,8213,5585,274
Totals35,581NA37,13936,43943,80647,83063,682
NA = Not Available. No survey was conducted for 2001.
Source: Energy Information Administration, Form EIA-902, "Annual Geothermal Heat Pump Manufacturers Survey."



Latest Data on Geothermal Heat PumpsFormats
Table 1.5a Historical Renewable Energy Consumption by Energy Use Sector and Energy Source pdfxls
Table 1.5b Historical Renewable Energy Consumption by Energy Use Sector and Energy Source pdfxls
Table 1.11 Electricity Net Generation From Renewable Energy by Energy Use Sector and Energy Source pdfxls
Table 1.12 U.S. Electric Net Summer Capacity pdfxls
Table 3.1 Geothermal Heat Pump Shipments by Model Type pdfxls
Table 3.2 Capacity of Geothermal Heat Pump Shipments by Model Type pdfxls
Table 3.3 Average Cooling Efficiency for Geothermal Heat Pump Shipments pdfxls
Table 3.4 Average Heating Efficiency for Geothermal Heat Pump Shipments pdfxls
Table 3.5 Geothermal Heat Pump Shipments by Export, Census Region and Model Type pdfxls
Table 3.6 Geothermal Heat Pump Domestic Shipments by Customer Type and Model Type pdfxls
Table 3.7 Geothermal Heat Pump Domestic Shipments by Sector and Model Type pdfxls
Table 3.8 Geothermal Direct Use of Energy and Heat Pumps pdfxls


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Database of State Incentives for Renewable Energy (DSIRE)
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GHP equipment at Beijing Concordia International Apartment Building.

GHP equipment at Beijing Concordia International Apartment Building.

   Source: National Renewable Energy Laboratory, Photographic Information Exchange.

A geothermal heat pump is an electric heat pump that draws heat from or discharges heat to the ground or ground water, instead of air. This works because the ground temperature which is 10-12 feet below the earths's surface stays relatively constant at 55 degrees Fahrenheit. A turbine is driven either from hot water or by natural steam that derives its energy from the Earth's heat. An "open loop" geothermal heat pump uses heat found in rocks or fluids at various depths beneath the surface of the earth, and receives/discharges fluids from the earth. The fluids are extracted by drilling and/or pumping. A "closed loop" geothermal heat pump pipes a fluid in a closed piping system underground, which receives heat from or discharges heat to the Earth.


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