Below are actual examples of monitored geothermal heat pump systems that are installed in the homes of consumers located throughout central Pennsylvania. In each case a separate sub-metered panel has been installed so that all of the energy used and only that energy used for heating and cooling is metered. These homes range in size from 1,500 to 4,500 square feet plus their basements.
A projection was made for each consumer estimating energy usage for heating during an average 6178 degree day winter and for cooling during a typical central Pennsylvania summer.
The figures in the degree day column are based upon monthly degree day data as provided by the Pennsylvania State University Weather Station and are the monthly totals for each of the twelve months following the month of installation.
|Actual KWH Usage||Annual Cost @ $.12/KWH||Average Monthly Cost||Annual Degree Days|
|Carrello | 2,400 sq ft 2-story|
|Miller | 2,000 sq ft 2-story|
|Vroman | 3,200 sq ft 2-story|
|Wood | 4,500 sq ft 2-story + 3,000 sq ft basement|
|Hopkins | 2,560 sq ft 2-story|
|6 YEAR SUMMARY – HAWRYLAK, 1500 sq ft Ranch|
|Year||KWH Usage||Annual Cost @ $.12/KWH||Average Monthly Cost||Annual Degree Days|