| year | real_COP | savings_dollar | kWh_required | real_kWh | energy_cost_furnace_only | energy_cost_with_heatpump | savings_pct |
|---|
year | real_COP | savings_dollar | kWh_required | real_kWh | energy_cost_furnace_only | energy_cost_with_heatpump | savings_pct |
|---|---|---|---|---|---|---|---|
| 2010 | 2.32 | $917 | 23,029 | 9,925 | $1,612 | $695 | 57% |
| 2011 | 2.05 | $869 | 24,222 | 11,815 | $1,696 | $827 | 51% |
| 2012 | 2.10 | $874 | 23,830 | 11,348 | $1,668 | $794 | 52% |
| 2013 | 1.87 | $802 | 24,622 | 13,159 | $1,724 | $921 | 47% |
| 2014 | 1.80 | $787 | 25,378 | 14,131 | $1,776 | $989 | 44% |
| 2015 | 1.76 | $760 | 25,210 | 14,353 | $1,765 | $1,005 | 43% |
| 2016 | 2.10 | $898 | 24,479 | 11,654 | $1,714 | $816 | 52% |
| 2017 | 1.90 | $809 | 24,399 | 12,835 | $1,708 | $898 | 47% |
| average | 1.97 | $840 | 24,396 | 12,402 | $1,708 | $868 | 49% |