Score breakdown: 53/100
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 14.2¢/kWh electricity rate, the most efficient heat pump water heater saves an estimated $522 per year compared to a standard electric tank.
Mississippi electricity
14.2¢
per kWh (EIA, Jan 2026)
Best HP annual cost
$118
A. O. Smith HPTS-50-2
Electric resistance
$641
~4,500 kWh/yr baseline
Gas tank baseline
$280
~200 therms/yr
Warmer inlet water (65°F annual average) means heat pump efficiency may exceed rated UEF in Mississippi. Less temperature rise needed, lower energy consumption.
Why Mississippi changes the call
01Energy costMississippi electricity is 18% below the national average. That directly affects how much a heat pump saves compared to a standard electric tank.
02Climate impactIncoming 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 incentivesState and utility rebates can significantly change the payback period. Check what's currently available before finalizing your decision.
Rebates in Mississippi
No active rebate programs are listed for Mississippi 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.
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.
Mississippi has no known statewide heat pump water heater rebate program. IRA programs not yet launched.
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 14.2¢/kWh rate. Curated to show different trade-offs instead of listing every published model on every state page. See the full heat pump lineup.
Prefer to buy online? The 45-gallon Rheem PROPH50 T2 RH400-30 is a heat pump available on Amazon.
Common questions: Mississippi
Is a heat pump water heater worth it in Mississippi?
Yes. Mississippi scores C on RatingPlate's analysis, with estimated savings of $522 per year compared to a standard electric tank. Payback on the higher upfront cost is roughly 4.6 years before rebates.
What rebates are available for heat pump water heaters in Mississippi?
There are currently no active rebate programs listed for Mississippi. The economics depend on operating cost savings alone. Check back as programs may launch.
How much does a heat pump water heater cost to run in Mississippi?
At Mississippi's electricity rate of 14.2 cents per kWh, the most efficient heat pump water heater costs about $118/yr to run. A standard electric tank costs about $640 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 4.6 years based on $522 in annual savings versus a standard electric tank. With available rebates, payback could be significantly shorter.
Your next click
Sources
Electricity and natural gas rates: U.S. Energy Information Administration, residential sector (EIA, Jan 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 generated July 12, 2026. Data freshness varies by source.
As an Amazon Associate we earn from qualifying purchases. RatingPlate may earn a commission when you use qualifying Amazon links. Links to Amazon are marked "(paid link)". We never display prices because Amazon prohibits showing prices outside their platform.
