Alexandria, KY: the heat pump payback math
In Alexandria, the extra upfront cost technically comes back, just not before the equipment wears out. $3,500 is what Alexandria would pay extra to go electric rather than replace the furnace and AC with the same again, once the $2,000 federal credit is applied. Alexandria's residents would see roughly $158 a year back in running costs, putting the payback around 22.1 years. Alexandria's own numbers say this pencils out only in theory, not in practice.
Why Alexandria's climate drives this number
Degree days tell the story here: Alexandria racks up 3923 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 1311 cooling degree days on the cooling side. The 99% winter design temperature here — the cold snap equipment must be sized for, not the seasonal average — is 5°F, against a record low of 0°F. That puts the seasonal coefficient of performance at 2.82 for the recommended cold-climate unit. Alexandria needs the cold-climate class of unit: past a 25°F design temperature a standard heat pump falls back on resistance backup often enough to eat the savings. Source: NOAA station CINA MUNI APT/LUKN FD APT, 9.5 miles from Alexandria — the closest one on record.
Alexandria's running-cost comparison, in dollars
Modelled on a typical 2000-square-foot house, the heat pump draws about 3,523 kWh a year to keep it warm, plus cooling, for a combined electric bill near $668 a year. That compares with roughly 41 Mcf a year of gas at Alexandria's 14.23 per-Mcf rate — about $826 a year — against a local electricity rate of 14.39¢/kWh. Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 85.4 years, for a 15-year net position $1,128 behind.
Electric resistance heat in Alexandria, compared
Plenty of homes in Alexandria heat with electricity alone, no gas line involved. Against electric-resistance heat — baseboard or an electric furnace, both 100% efficient but still just resistance — the case for switching gets stronger here. About $1,006 a year comes back this way, enough that the 8-year payback clears the $8,000 premium comfortably within the equipment's life.
How Alexandria compares nationally
Among 3206 cities, Alexandria's winter puts it at rank 1573 for severity, while its size puts it at rank 3022 for population — 1 in both cases being the extreme. That's the middle third for winter severity among the cities covered here.
Next step for 10,819 people in Alexandria
About 10,819 people live in Alexandria, Kentucky, and every number on this page is what a contractor would actually work from when quoting a system here — the point isn't to replace that quote, it's to tell you whether to bother asking for one. Here, there's no cost penalty to waiting until your current furnace or AC actually needs replacing.
Ask a local HVAC contractor for a quote before committing either way.
Where Alexandria's figure comes from
Nothing above is a black box: the methodology guide shows the full arithmetic behind Alexandria's 2.82 seasonal COP and payback figure. Alexandria's 5°F design temperature is below the 25°F line, which is why a cold-climate unit is the right call here — see what that changes in the cold-climate unit guide.