Geothermal Resources by State
State Specific Links
Connecticut
- RJT Energy provider option for Connecticut
- Geothermal Incentives from the Conecticut Clean Energy Fund
- United Illuminating Geothermal Rebate Program Information
- Connecticut Light & Power Geothermal Rebate Program Information
- Connecticut Energy Efficiency Fund GSHP Rebate Procedure
- Connecticut Housing Investment Fund Inc.
Maine
- Efficiency Maine's new loan product - Powersaver
- Maine Energy Incentives Directory
- Maine Governor's office on Energy & Security endorses Geothermal HVAC
- Woman owned/Disadvantaged Business credential for Maine
- Maine drillers licensing requirement effective October 4, 2010
- Typical geothermal HVAC install costs for Maine
- Why Heating Oil Dependence is a Major Risk to the Maine Economy (PDF)
- Permitting
-
Information & tools developed by Dr. John Logan -
Water Energy representative - Raymond , ME- Dr. Logan's Overview of Geothermal Systems in Maine (PDF)
- Geothermal Cash Flow Analysis (Excel Sheet)
- Geothermal Heating Costs - Numbers To Remember (PDF)
- Motivation for Choosing Geothermal Climate Control (PDF)
- Selected Geothermal Installations In Maine (PDF)
- New construction cost comparison tool (Excel Sheet)
- Geothermal Numbers With Tax Rebate for Maine Builders and Homeowners (PDF)
- Geothermal systems in Maine (PDF)
- Annual CO2 comparison for Geo and Fossil Fuels (PDF)
- Geo vs. Propane cost estimate tool (Excel Sheet)
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Information on Low Interest Energy Efficiency Loans
for Geothermal Installations in Maine
Shirley I. Bartlett, Program Manager, Efficiency Maine
#18 State House Station Augusta, ME 04333-0018
Tel.: 207-287-3318 Fax: 207-287-1039 - Super Saver vs. Basic Rate "A" Performance Metric
Massachusetts
- Massachusetts Commercial Utility Rebate Form
- Massachusetts Clean Energy Center - Ask about Geothermal HVAC rebates program.
- Homeowners presentation for successful Groton, MA geothermal project
- Prest residence Youtube video on geothermal install
- Permitting
New Hampshire
- Geothermal in NH's "Pay for Performance" program
- NH Coop Geothermal program
- NH Coop gives up to $10,000 for geothermal conversions and $4500 for new construction energystar qualified homes
- Woman/Minority Owned Business Credentials for NH
- Community Development Finance Authority for NH
- PSNH Geothermal program
- New Hampshire Climate Audit - Heating Cost Calculator
- Permitting
New York
- NYSERDA Geothermal Incentive Program
- LIPA Geothermal Rebate Program
- NY DDC's Geothermal Heat Pump Manual - Co-authored by Water Energy's geo pioneer Carl Orio
- NYSERDA’s FlexTech Program for Energy Efficiency Projects
- Permitting
Rhode Island
Vermont
- PACE finance options for Vermont residents
- Northeastern Vermont Development Association Geothermal Heat Pump Manual
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"We should encourage geothermal energy in Vermont"
Mike Yantachka, Burlington Free Press - Senator Sanders advocates Geothermal HVAC for Vermont
- Green Mountain Geothermal Interview
- Green Mountain Geo Fuel Cost Comparison
- 2012 Vermont Fuel Price Comarison Chart
Other "Heat Pump" Homes in New England
Actual metered data from Public Service of New Hampshire (PSNH)1 and Bangor Hydro (BH)2 are as listed below for a mix of various heat pump manufacturers that participate in the program through 1999. All of the New Hampshire data is from PSNH's "Energy Crafted Home" program. Maine's results are from a 1994/1995 BH's demonstration program with a mix of house insulation and construction, including retrofits of existing homes.
We have averaged the two sets of data and show a result of: Average per year per square foot of conditioned space
Public Service of NH: 3.7 kWh (Energy Crafted Homes)
Bangor Hydro: 4.9 kWh (Standard Construction)
2 Bangor - Seven homes have been monitored for more than one year. The range of electrical energy used is from 3.4 to 8.5 kWh/sq ft/year.
Click on the following .pdf links to view the updated data averages for the PSNH energy star home programs where geothermal heat pumps were deployed through Water Energy and other distributors.
PSNH – Annual Fuel Cost graph – current through April 2008
PSNH – Annual heating per square foot – current through April 2008
Considering the effect of degree-days:
| Degree-Days (typical per NOAA) | |
| Concord, NH 7,360 | 0.50 watts/square foot/Deg.-Day for Energy Crafted Home |
| Bangor, ME 8,220 |
0.60 watts/square foot/Deg.-Day For Standard Construction/Retrofit |
| NORMALIZATION ELECTRIC ENERGY USED by CONSTRUCTION TYPE & GeoExchange | |
Knowing the construction of the home and the average electric rate in your area you can make an estimate of annual heating, cooling and domestic hot water costs. Simply multiply these above factors (F) by the average electric rate (R), by the local Degree Days (DD) and by the conditioned square feet (SF) in the house. From that simple calculation: F x R x DD x SF, 1,000 = average annual cost, you can make a reasonable estimate of averaged annual costs for a potential heat pump customer - keep in mind there is quite a spread on these factors and the results of that simple multiplication will be a fair average.
Here is another simple tool you may want to use that allows the user to input cost of delivered kwh and overall geothermal system COP. The spreadsheet will identify how much your traditional fuel would have to cost in order to be competitive against proven geothermal efficiencies. We suggest you use a conservative geothermal COP of between 3.0 and 4.0 to get a conservative estimate.
Water Energy - Fuel cost comparison tool (an EXCEL workbook)
