Geothermal Savings Calculator
Calculate annual savings compared to conventional HVAC.
InputsLoading live data…
BTU
BTU
%
$/kWh
$/therm
Results
Annual Savings
$226.00
≈ 15 movie tickets
Savings Percentage
21%
Monthly Savings$19.00
Geothermal Annual Cost$857.00
Conventional Annual Cost$1,083.00
How to Use This Calculator
- Enter your current annual heating and cooling costs.
- Set the estimated efficiency improvement from geothermal (typically 40–70% reduction).
- Input the annual electricity cost to run the geothermal heat pump.
- Review the net annual savings and cumulative savings over the system lifespan.
- Geothermal savings compound over time as conventional fuel prices rise.
How the result changes with Geothermal COP
| Geothermal COP | Annual Savings | Savings Percentage |
|---|---|---|
| 3.3 | $44.00 | 4% |
| 4.05 | $236.00 | 22% |
| 4.95 | $390.00 | 36% |
| 5.7 | $481.00 | 44% |
What each input means
- Annual Heating Load
- Total annual heating energy requirement.
- Annual Cooling Load
- Total annual cooling energy requirement.
- Geothermal COP
- Expected geothermal heat pump COP.
- Conventional Heating Eff.
- Conventional furnace or boiler efficiency (AFUE).
- Conventional Cooling EER
- Conventional AC energy efficiency ratio.
- Electricity Rate
- Electricity rate per kWh.
- Natural Gas Rate
- Natural gas rate per therm.
- Current Heating Fuel
- Current heating fuel type.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersAnnual Heating Load = 60000000, Annual Cooling Load = 30000000, Geothermal COP = 4, Conventional Heating Eff. = 95 = 8 input(s) provided
- Calculate Annual SavingsAnnual Savings226 = $226
- Calculate Savings PercentageSavings Percentage21 = 21
- Calculate Monthly Savings19 = $19
- Calculate Geothermal Annual CostGeothermal Annual Cost857 = $857
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