WattCost

Data through June 2026

Running cost · Water Heaters (Electric) · ENERGY STAR certified

State HPAX-80-DHPT 2

For a standard household draw pattern, the State HPAX-80-DHPT 2 uses a certified 1,279 kWh per year: roughly $235 annually at the national average rate. Efficiency-wise it's unremarkable in a good way: within 6% of the median certified electric water heater (rank 360 of 510). The same unit costs $168 a year in Nevada but $674 in Hawaii — electricity rates, not the appliance, make the difference.

Dimensions 69" H × 27" W

Estimated annual running cost · U.S. average rate 18.3¢/kWh

$235/yr

$125 · cheapest certified water heaters (electric)$319 · priciest
Per month
$19.55
Per day
64¢
Certified use
1,279 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
240 Volt Integrated HPWH
Storage volume
81 gal
First-hour rating
95 gal
UEF
3.88
681 kWh1,741 kWh
Where the State HPAX-80-DHPT 2 (▮) sits among all 510 certified water heaters (electric), by annual kWh

What it costs in every state

State HPAX-80-DHPT 2: 1,279 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$210
Alaska28.2¢$361
Arizona15.2¢$194
Arkansas14.1¢$181
California34.7¢$444
Colorado17.1¢$219
Connecticut24.3¢$311
Delaware19.3¢$247
District of Columbia24.4¢$312
Florida15.1¢$193
Georgia16.4¢$209
Hawaiipriciest52.7¢$674
Idaho14.4¢$184
Illinois19.9¢$254
Indiana17.5¢$224
Iowa15.9¢$204
Kansas15.7¢$201
Kentucky14.3¢$182
Louisiana13.5¢$173
Maine29.6¢$378
Maryland21.8¢$279
Massachusetts29.6¢$379
Michigan23.0¢$294
Minnesota17.5¢$224
Mississippi14.9¢$190
Missouri16.2¢$207
Montana15.1¢$194
Nebraska13.3¢$169
Nevadacheapest13.1¢$168
New Hampshire27.0¢$345
New Jersey24.9¢$319
New Mexico15.1¢$193
New York29.5¢$377
North Carolina14.7¢$189
North Dakota14.1¢$181
Ohio19.2¢$245
Oklahoma14.3¢$183
Oregon16.3¢$209
Pennsylvania21.7¢$278
Rhode Island29.2¢$374
South Carolina15.6¢$199
South Dakota15.4¢$196
Tennessee14.1¢$180
Texas15.9¢$204
Utah13.4¢$171
Vermont24.4¢$313
Virginia17.2¢$220
Washington14.9¢$191
West Virginia15.4¢$198
Wisconsin19.6¢$250
Wyoming15.2¢$195

Certified models closest in efficiency

electric water heaters within reach of 1,279 kWh/yr
ModelkWh/yr$/yr (US avg)
A. O. Smith CAHP-80 21,279$235
A. O. Smith HPA10-80H45DV 21,279$235
A. O. Smith HPS10-80H45DV 21,279$235
A. O. Smith HPSN10-80H45DV 21,279$235
A. O. Smith HPTA-80 21,279$235
A. O. Smith HPTS-80 21,279$235

Run your own numbers

Your rate, your numbers

Per day
64¢
Per month
$19.55
Per year
$235

1,279 kWh/yr × 18.3¢/kWh = $235/yr

Prefilled with this model's certified 1,279 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh comes from the DOE Uniform Energy Factor test, which simulates a typical household's daily hot-water draw pattern. Only electric models (including heat-pump units) are listed — gas models burn gas, not kWh.

Questions, answered with the data

How much electricity does the State HPAX-80-DHPT 2 use?
ENERGY STAR certifies the State HPAX-80-DHPT 2 at 1,279 kWh per year. The certified annual kWh comes from the DOE Uniform Energy Factor test, which simulates a typical household's daily hot-water draw pattern. Only electric models (including heat-pump units) are listed — gas models burn gas, not kWh.
How much does the State HPAX-80-DHPT 2 cost to run per month?
About $19.55 a month at the U.S. average residential rate (18.3¢/kWh) — 64¢ a day, or $235 a year. Your state's rate moves this up or down; see the table above.
Is the State HPAX-80-DHPT 2 energy efficient?
It uses 6% more electricity than the median certified electric water heater.
What does the State HPAX-80-DHPT 2 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $168 a year in Nevada (13.1¢/kWh) and $674 in Hawaii (52.7¢/kWh).

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