State guide

Heat Pump Water Heaters in Mississippi

Heat pumps make financial sense in Mississippi. Estimated savings: $544/yr vs a standard electric tank.

$544/yr savings/4.4 yr payback/1 rebate program/14.8¢/kWh (18% below avg)

Utility rebates available now. IRA HEAR has not launched in Mississippi yet.

Running cost Rebates Best fits

Score breakdown: 59/100

Savings

34/55

Rebates

4/20

Climate

15/15

Install

6/10

RatingPlate Score. Based on EIA energy prices, ENERGY STAR data, state rebate programs, and permit research. Not a government rating or purchasing recommendation. FAQ

Mississippi electricity is 18% below the national average. Here's what that means for heat pump operating costs.

Running cost in Mississippi

At Mississippi's 14.8¢/kWh electricity rate, the most efficient heat pump water heater saves an estimated $544 per year compared to a standard electric tank.

Mississippi electricity

14.8¢

per kWh (EIA, 12-month avg. through Aug 2026)

US average

18.0¢

per kWh

Best HP annual cost

$123

A. O. Smith HPTS-50-2

Electric resistance

$668

~4,500 kWh/yr baseline

Warmer inlet water (65°F annual average) means heat pump efficiency may exceed rated UEF in Mississippi. Less temperature rise needed, lower energy consumption.

Heat pump vs gas tank in Mississippi

At Mississippi prices (14.8¢/kWh electricity, $1.72/therm gas), a heat pump costs about $171 less per year to run than a standard gas tank, on the same DOE rated hot water load. See replacing a gas water heater in 2026 and all 50 states compared.

Heat pump

$127/yr

855 kWh/yr (median 50-gal)

Gas tank

$298/yr

173 therms/yr (UEF 0.64)

Difference

$171/yr

heat pump cheaper

Both use the DOE medium draw test load (55 gallons a day). Gas price: EIA, 12-month avg. through Aug 2026. Replacing gas with a heat pump also means adding a 240V circuit (or choosing a 120V model) and a condensate drain, and the federal HEAR rebate no longer covers gas replacements.

Why Mississippi changes the call

01Energy cost

Mississippi electricity is 18% below the national average. That directly affects how much a heat pump saves compared to a standard electric tank.

02Climate impact

Incoming water averages 65°F annually and drops to about 55°F in winter. Colder water means the heat pump works harder and real efficiency is slightly lower than rated.

03Available incentives

State and utility rebates can significantly change the payback period. Check what's currently available before finalizing your decision.

Rebates in Mississippi

Mississippi has 1 rebate program as of March 2026.

The federal $2,000 tax credit (IRA Section 25C) expired December 31, 2025. State and utility rebates listed below may still be available. Verify current status at the links provided.

Entergy Mississippi Residential Appliances Program: Heat Pump Water Heaters

Up to $750

Who: Entergy Mississippi
Eligibility: ENERGY STAR certified model on Entergy's eligible model list. Entergy Mississippi residential customer. Apply online or by mail within 30 days of purchase with dated receipt. Available while funds last.
https://www.entergymississippi.com/energyefficiency/residential/water-heaters

IRA HEAR Rebate (Point-of-Sale)

Not yet available in Mississippi as of March 2026. Up to $1,750 for income-qualified households when available. Under federal guidance effective May 29, 2026, this rebate covers replacing an existing electric water heater (or new construction). Replacing a gas, propane, or oil water heater no longer qualifies.
Independent rebate trackers reported in September 2026 that Mississippi had not launched its IRA Home Energy Rebates. No official state status page was found. Entergy Mississippi offers a heat pump water heater incentive of up to $750.

Install requirements in Mississippi

Electrical

Dedicated 240V, 30A circuit (most models). Some newer 120V plug-in models exist but most residential units require 240V. Check the unit's nameplate for exact requirements.

Condensate drain

Heat pump water heaters produce condensate during operation. A condensate drain line to an approved location (floor drain, condensate pump, or exterior) is required.

Air space

Approximately 700 cubic feet of surrounding air (roughly a 10x10x7-foot room). The heat pump extracts heat from surrounding air. Insufficient air volume reduces efficiency and can cause the unit to underperform. Some manufacturers allow ducting to supplement air supply in smaller spaces.

Noise

Heat pump water heaters produce operational noise similar to a window AC unit (45-55 dB). Consider placement away from bedrooms.

Best fits for Mississippi

A smaller set of representative fits using Mississippi's 14.8¢/kWh rate. Curated to show different trade-offs instead of listing every published model on every state page. See the full heat pump lineup.

Lowest running cost

A. O. Smith

HPTS-50-2

Lowest annual bill at this state's electricity rate.

$123/yr 46 gal UEF 3.80 63" tall

Best efficiency

GE Profile

PH80S10BPY01

Highest UEF in the published lineup.

$167/yr 80 gal UEF 4.40 76.375" tall

50-gallon sweet spot

Bradford White

RE2HP50-1NCTT

Common replacement size for 1 to 3 people.

$124/yr 45 gal UEF 3.89 64.125" tall

Large-household pick

Noritz

NHP120

Higher first-hour rating for heavier simultaneous demand.

$218/yr 109 gal UEF 3.38 85" tall

Tight-space pick

Bradford White

RE2H50S

Shortest cabinet among the published options.

$140/yr 45 gal UEF 3.44 59.1875" tall

Prefer to buy online? The 46-gallon Rinnai REHP50BM is a heat pump available on Amazon.

Check price and availability: Rinnai REHP50BM on Amazon (paid link)

Common questions: Mississippi

Is a heat pump water heater worth it in Mississippi?

Yes. Mississippi scores B on RatingPlate's analysis, with estimated savings of $544 per year compared to a standard electric tank. Payback on the higher upfront cost is roughly 4.4 years before rebates.

What rebates are available for heat pump water heaters in Mississippi?

Mississippi has 1 rebate program. The IRA HEAR program has not launched in Mississippi yet. Verify amounts and eligibility at the links in the rebates section above.

How much does a heat pump water heater cost to run in Mississippi?

At Mississippi's electricity rate of 14.8 cents per kWh, the most efficient heat pump water heater costs about $123/yr to run. A standard electric tank costs about $668 per year.

Do I need a permit for a heat pump water heater in Mississippi?

Mississippi does not have unusual state-level requirements beyond standard plumbing and mechanical permits. Check with your local building department for jurisdiction-specific rules.

What is the payback period for a heat pump water heater in Mississippi?

Without rebates, the payback period in Mississippi is approximately 4.4 years based on $544 in annual savings versus a standard electric tank. With available rebates, payback could be significantly shorter.

Your next click

All heat pump modelsCompare specs across brands Back to homepageCompare other types or find a specific model Lowest cost: A. O. Smith$123/yr in Mississippi Sizing guideWhat size do you need? Replacement cost guideEquipment, labor, and hidden costs Heat pump vs gas tanklessCompare technologies across fuel types

Sources

Electricity and natural gas rates: U.S. Energy Information Administration, residential sector (EIA, 12-month avg. through Aug 2026).

Rebate data compiled from state energy offices, utility program pages, DSIRE, and ENERGY STAR. Rebate amounts and eligibility change frequently. Verify at listed program URLs.

Inlet water temperatures estimated from NOAA climate normals using the Burch-Christensen mains water temperature model (NREL).

Model specifications from ENERGY STAR certified product data and manufacturer spec sheets.

Page updated November 1, 2026. Data freshness varies by source.

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