Will a heat pump pay off in D'Iberville, MS?
D'Iberville clears a genuine payback here, inside a reasonable stretch of years. $1,000 is what D'Iberville 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. D'Iberville's residents would see roughly $277 a year back in running costs, putting the payback around 3.6 years. That's a real payback, built from D'Iberville's own climate and utility rates, not a national guess.
Why D'Iberville's climate drives this number
1081 heating degree days pile up here every year, so D'Iberville barely has a winter to speak of; the cooling side runs to 3323 cooling degree days, where summers are severe enough that cooling can dominate the annual bill. Sizing runs off the design temperature, not the average day: 29.3°F here (record low 19.4°F), which works out to a seasonal COP of 3.07 for the standard class of unit this climate calls for. A standard ducted system is enough here; D'Iberville's design temperature doesn't justify the cold-climate premium. Climate figures trace to the nearest NOAA station, KEESLER AIR FORCE BASE, 2.2 miles from D'Iberville.
What it actually costs to run, year to year
Electricity use for heating alone comes out to about 892 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $576 a year. That compares with roughly 11 Mcf a year of gas at D'Iberville's 16.64 per-Mcf rate — about $854 a year — against a local electricity rate of 15.47¢/kWh. Looked at as a full purchase rather than an incremental one, payback here is roughly 39.7 years, leaving the 15-year total $3,160 ahead.
Electric resistance heat in D'Iberville, compared
Plenty of homes in D'Iberville heat with electricity alone, no gas line involved. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. The saving here runs about $513 a year, which recovers the extra $5,500 spent going electric in roughly 10.7 years.
Where D'Iberville ranks in this dataset
D'Iberville lands at position 2862 out of 3206 cities on heating severity (coldest is 1), and 2601 out of 3206 by population size (biggest is 1). That's the mildest third of cities covered, where utility rates carry more of the answer than climate does.
What to do with this number in D'Iberville
About 13,399 people live in D'Iberville, Mississippi, 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.
Ask a local HVAC contractor for a quote before committing either way.
Where D'Iberville's figure comes from
Nothing above is a black box: the methodology guide shows the full arithmetic behind D'Iberville's 3.07 seasonal COP and payback figure. See what D'Iberville's figure looks like without the $2,000 federal credit in the guide to how that credit moves the payback window.