The idea of extracting energy from the ground and using it to heat and cool homes efficiently might
be hard to imagine for those who have relied on traditional fossil fuel furnaces and central air conditioners
for years. But the facts and figures show that a geothermal system clearly outperforms conventional systems.
The following chart shows the average annual operating costs of geothermal versus other
conventional systems.
SAVING ENERGY SAVES YOU MONEY
Comparison shows Annual Operating cost of a Bard GeoTec Heat Pump - both Open & Closed Loop; 80% AFUE Natural Gas / 10 SEER Split A/C (Replacement Market); 90% AFUE / 13 SEER Split A/C (New Construction).
March 3, 2009 DOE Published National Average Energy Cost for 2007: Electric = $0.1080/kWh; Natural Gas - $1.328/therm; #2 Oil - $3.19/gallon; Propane = $2.42/gallon.
House Parameters: 2,000 sq. ft Ranch/Unfinished Basement,
Attic: R-30.
Walls: 2x6, R-19. House Wrap
Windows: Vinyl, Double Pane, Low-E, Argon, Clear
Doors: Steel Clad, Foam Core
Roof: Light Color
Electric Rate: 1080/kw, Cooling Design Temp: 75°F
Occupancy Load: 4 people.
