Mine has not changed much; if any, in last 3 years?
Mine stayed reasonable for 3 or 4 years and about the same price. We built this house and the power bill was great and then it started going crazy. This last cold snap we had I put my thermostat on 62 and heated with gas logs. Bill went up and they told me it was because it was so cold for so long, I told them what I had done and my heat pump didnt run much because I used gas logs for heat and they just looked confused and said it must have been something else or I didnt use them as much as I thought I did.
