| Solar and Geothermal Resources |
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Geothermal Space Heating or Ground-source Heat Pumps
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Geothermal heat pumps, commonly called ground-source heat pumps (GSHPs), work by moving heat, rather than by converting chemical energy to heat like in a furnace. They provide space conditioning -- heating, cooling, and humidity control. They may also provide water heating -- either to supplement or replace conventional water heaters. Geothermal heat pumps are three times more efficient in heating your home than baseboard electric heaters.
Geothermal Heat Pump
Yield Table
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System Tons
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BTU per Hour Output
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Estimated Savings
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Tax Credit Amount
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3 ton and under
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Less than 40,000
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1,000 kWh
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$600
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4 ton
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40,000 - 49,999
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1,165 kWh
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$700
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5 ton
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50,000 - 64,999
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1,335 kWh
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$800
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6 ton and over
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65,000 and over
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1,500 kWh
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$900
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A solar space heating system is eligible for a tax credit of up to $1,500. The tax credit may offset the additional cost of improved design, thermal storage and superior windows.
Solar Electric Systems (PV)
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A solar photovoltaic system is eligible for a tax credit of up to $6,000. For more information about the solar tax credit, see our Web pages about solar energy.
The Oregon Residential Energy Tax Credit brochure (pdf) explains how you´ll save on energy bills and how to apply for the credit. Contact The Oregon Department of Energy with any questions that aren´t answered in the forms linked to the right (503.378.4040 in Salem or 1.800.221.8035 toll-free in Oregon).
Solar Domestic Water Heating Residential Tax Credits
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A solar domestic water heating system is eligible for a tax credit of up to $1,500. For more information about the solar tax credit, see our Web pages about solar energy.
The Oregon Residential Energy Tax Credit brochure (pdf) explains how you´ll save on energy bills and how to apply for the credit. Contact The Oregon Department of Energy with any questions that aren´t answered in the forms linked to the right (503.378.4040 in Salem or 1.800.221.8035 toll-free in Oregon).
Solar Pool Heating Tax Credits
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A solar domestic pool heating system is eligible for a tax credit of up to $1,500. For more information about the solar tax credit, see our Web pages about solar energy.
The Oregon Residential Energy Tax Credit brochure (pdf) explains how you´ll save on energy bills and how to apply for the credit. Contact The Oregon Department of Energy with any questions that aren´t answered in the forms linked to the right (503.378.4040 in Salem or 1.800.221.8035 toll-free in Oregon).
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Geothermal or Ground-source Heat Pump Systems
Please note: This pdf form may be filled out on your computer, printed, signed and mailed with your receipt to the Oregon Department of Energy. The form can NOT be filed on-line
Note:
A tax credit-certified technician must verify installation of your ground source heat pump for it to qualify for the the tax credit.
Application Form (pdf)
Ground-source heat pumps
Tax credit-certified technician list
Information for tax credit-certified technicians
Solar Space Heating
Application Form (pdf)
Worksheet (pdf)
Sunchart (pdf)
Weather Zones by County
Information for tax credit-certified technicians
Solar Electric (PV) Systems (all PDF)
Application Form
Sunchart
Tax Credit-Certified Solar Technicians
Information for tax credit-certified technicians
Solar Water Heating
Solar Pool Heating
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