Sunday, June 30, 2013

House Renovation Savings - geothermal heatpump payback

In the year 2010 we installed a geothermal heat pump, along with some other energy upgrades.  The upgrades we more attic insulation, blowing insulation into the walls, new cellar windows, cfl lights throughout.  I have been trying to quantify our savings using the new system.
I recently found an online calculator to help me.
Just using the geothermal upgrade, we have a 23% cost savings.
Including upgrades for insulation, cfl lights, and tightening the windows, we are estimated to have a 43% savings.
It has been hard for me to judge, with the varying weather and varying prices of electric and gas.  I know that we are paying less, but have not yet come up with a concrete number for how much less.