WattCost

Data through June 2026

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

Noritz NHP80

For a standard household draw pattern, the Noritz NHP80 uses a certified 1,424 kWh per year: roughly $261 annually at the national average rate. Even among certified models it's on the thirsty end: 18% more electricity than the median electric water heater, ranked 484 of 510. Where you live moves the bill from $187 a year in Nevada to $751 in Hawaii.

Dimensions 74" H × 28" W

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

$261/yr

$125 · cheapest certified water heaters (electric)$319 · priciest
Per month
$21.76
Per day
72¢
Certified use
1,424 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
240 Volt Integrated HPWH
Storage volume
74 gal
First-hour rating
86 gal
UEF
3.48
681 kWh1,741 kWh
Where the Noritz NHP80 (▮) sits among all 510 certified water heaters (electric), by annual kWh

What it costs in every state

Noritz NHP80: 1,424 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$234
Alaska28.2¢$402
Arizona15.2¢$216
Arkansas14.1¢$201
California34.7¢$495
Colorado17.1¢$244
Connecticut24.3¢$346
Delaware19.3¢$275
District of Columbia24.4¢$347
Florida15.1¢$215
Georgia16.4¢$233
Hawaiipriciest52.7¢$751
Idaho14.4¢$205
Illinois19.9¢$283
Indiana17.5¢$249
Iowa15.9¢$227
Kansas15.7¢$224
Kentucky14.3¢$203
Louisiana13.5¢$192
Maine29.6¢$421
Maryland21.8¢$311
Massachusetts29.6¢$422
Michigan23.0¢$327
Minnesota17.5¢$249
Mississippi14.9¢$212
Missouri16.2¢$231
Montana15.1¢$216
Nebraska13.3¢$189
Nevadacheapest13.1¢$187
New Hampshire27.0¢$385
New Jersey24.9¢$355
New Mexico15.1¢$214
New York29.5¢$420
North Carolina14.7¢$210
North Dakota14.1¢$201
Ohio19.2¢$273
Oklahoma14.3¢$204
Oregon16.3¢$232
Pennsylvania21.7¢$309
Rhode Island29.2¢$416
South Carolina15.6¢$221
South Dakota15.4¢$219
Tennessee14.1¢$200
Texas15.9¢$227
Utah13.4¢$190
Vermont24.4¢$348
Virginia17.2¢$245
Washington14.9¢$212
West Virginia15.4¢$220
Wisconsin19.6¢$279
Wyoming15.2¢$217

Certified models closest in efficiency

electric water heaters within reach of 1,424 kWh/yr
ModelkWh/yr$/yr (US avg)
Hubbell ME80HPT1,424$261
VAUGHN THERMAL ME80HPT1,424$261
VAUGHN THERMAL ME80HPT-CN1,424$261
VAUGHN THERMAL MP120FHPT1,418$260
GE Profile PF80S10FPY011,417$260
Carnot Labs, Inc. N511,404$257

Run your own numbers

Your rate, your numbers

Per day
72¢
Per month
$21.76
Per year
$261

1,424 kWh/yr × 18.3¢/kWh = $261/yr

Prefilled with this model's certified 1,424 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.

Certified variants covered by this entry

NHP80 · NHP80

Questions, answered with the data

How much electricity does the Noritz NHP80 use?
ENERGY STAR certifies the Noritz NHP80 at 1,424 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 Noritz NHP80 cost to run per month?
About $21.76 a month at the U.S. average residential rate (18.3¢/kWh) — 72¢ a day, or $261 a year. Your state's rate moves this up or down; see the table above.
Is the Noritz NHP80 energy efficient?
It uses 18% more electricity than the median certified electric water heater, which puts it among the least efficient certified models.
What does the Noritz NHP80 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $187 a year in Nevada (13.1¢/kWh) and $751 in Hawaii (52.7¢/kWh).
Does this figure cover other model numbers?
Yes — 2 certified retail variants (color, finish, and store-specific SKUs) share this exact energy certification. They're listed under "Certified variants" on this page.

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