Corcoran, CA: the heat pump payback math
A heat pump earns back its extra cost in Corcoran within a sensible timeframe. $1,000 is what Corcoran 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. Corcoran's residents would see roughly $315 a year back in running costs, putting the payback around 3.2 years. That's a real payback, built from Corcoran's own climate and utility rates, not a national guess.
Why Corcoran's climate drives this number
2130 heating degree days pile up here every year, so Corcoran has a mild winter by US standards; the cooling side runs to 2711 cooling degree days, where summers are severe enough that cooling can dominate the annual bill. The 99% winter design temperature here — the cold snap equipment must be sized for, not the seasonal average — is 30.9°F, against a record low of 30°F. That puts the seasonal coefficient of performance at 3.12 for the recommended standard unit. A standard ducted system is enough here; Corcoran's design temperature doesn't justify the cold-climate premium. These numbers come from HANFORD MUNICIPAL AIRPORT, the closest NOAA station, 16.7 miles out.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 1,729 kWh a year to keep it warm, plus cooling, for a combined electric bill near $1,326 a year. That compares with roughly 22 Mcf a year of gas at Corcoran's 22.01 per-Mcf rate — about $1,642 a year — against a local electricity rate of 32.83¢/kWh. Looked at as a full purchase rather than an incremental one, payback here is roughly 34.9 years, leaving the 15-year total $3,730 ahead.
The other scenario: no gas furnace to begin with
Gas isn't universal in Corcoran — many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and Corcoran's answer improves. The saving here runs about $1,598 a year, which recovers the extra $5,500 spent going electric in roughly 3.4 years.
Where Corcoran ranks in this dataset
Ranked against the other 3206 cities covered, Corcoran comes in at 2371 for heating severity — 1 would be the coldest place in the dataset — and 1740 by population, where 1 is largest. That's the mildest third of cities covered, where utility rates carry more of the answer than climate does.
Deciding what's next in Corcoran, CA
About 22,627 people live in Corcoran, California, 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, it's worth getting quotes before your current system fails, not after.
Line up a few local HVAC quotes before you decide.
More on how this number was built
Nothing above is a black box: the methodology guide shows the full arithmetic behind Corcoran's 3.12 seasonal COP and payback figure. See what Corcoran's figure looks like without the $2,000 federal credit in the guide to how that credit moves the payback window.