For Consumers

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
1st 6,463 $775.56 $64.14 6,170
2nd 6,565 $787.80 $65.66 5,817
Miller | 2,000 sq ft 2-story
5,947 $713.64 $59.48 5,857
Vroman | 3,200 sq ft 2-story
1st 12,368 $1448.16 $123.68 6,397
2nd 9,088 $1090.56 $90.88 6,275
Wood | 4,500 sq ft 2-story + 3,000 sq ft basement
1st 22,170 $2660.40 $221.70 6,833
2nd 18,851 $2262.12 $188.52 6,196
Hopkins | 2,560 sq ft 2-story
5,982 $672.60 $56.06 5,605
6 YEAR SUMMARY – HAWRYLAK, 1500 sq ft Ranch
Year KWH Usage Annual Cost @ $.12/KWH Average Monthly Cost Annual Degree Days
1st 5704 $648.48 $57.04 6405
2nd 4846 $581.52 $48.46 6768
3rd 3772 $452.64 $37.72 5966
4th 4810 $577.20 $48.10 6762
5th 4084 $490.08 $40.84 6247
6th 3649 $437.88 $36.48 5605