WattCost

Data through June 2026

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

Noritz NHP120

Heating a typical household's hot water, the Noritz NHP120 is certified at 1,467 kWh a year — about $269 at the U.S. average electricity rate, or $22.42 a month. Even among certified models it's on the thirsty end: 21% more electricity than the median electric water heater, ranked 489 of 510. Where you live moves the bill from $192 a year in Nevada to $773 in Hawaii.

Dimensions 84.5" H × 30" W

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

$269/yr

$125 · cheapest certified water heaters (electric)$319 · priciest
Per month
$22.42
Per day
74¢
Certified use
1,467 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
240 Volt Integrated HPWH
Storage volume
109 gal
First-hour rating
105 gal
UEF
3.38
681 kWh1,741 kWh
Where the Noritz NHP120 (▮) sits among all 510 certified water heaters (electric), by annual kWh

What it costs in every state

Noritz NHP120: 1,467 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$241
Alaska28.2¢$414
Arizona15.2¢$223
Arkansas14.1¢$207
California34.7¢$510
Colorado17.1¢$251
Connecticut24.3¢$357
Delaware19.3¢$283
District of Columbia24.4¢$358
Florida15.1¢$222
Georgia16.4¢$240
Hawaiipriciest52.7¢$773
Idaho14.4¢$211
Illinois19.9¢$292
Indiana17.5¢$257
Iowa15.9¢$234
Kansas15.7¢$230
Kentucky14.3¢$209
Louisiana13.5¢$198
Maine29.6¢$434
Maryland21.8¢$320
Massachusetts29.6¢$434
Michigan23.0¢$337
Minnesota17.5¢$257
Mississippi14.9¢$218
Missouri16.2¢$238
Montana15.1¢$222
Nebraska13.3¢$194
Nevadacheapest13.1¢$192
New Hampshire27.0¢$396
New Jersey24.9¢$366
New Mexico15.1¢$221
New York29.5¢$433
North Carolina14.7¢$216
North Dakota14.1¢$207
Ohio19.2¢$282
Oklahoma14.3¢$210
Oregon16.3¢$239
Pennsylvania21.7¢$319
Rhode Island29.2¢$429
South Carolina15.6¢$228
South Dakota15.4¢$225
Tennessee14.1¢$206
Texas15.9¢$234
Utah13.4¢$196
Vermont24.4¢$359
Virginia17.2¢$253
Washington14.9¢$219
West Virginia15.4¢$227
Wisconsin19.6¢$287
Wyoming15.2¢$224

Certified models closest in efficiency

electric water heaters within reach of 1,467 kWh/yr
ModelkWh/yr$/yr (US avg)
Hubbell ME120HPT1,467$269
VAUGHN THERMAL ME120HPT1,467$269
VAUGHN THERMAL ME120HPT-CN1,467$269
GE Profile PF65S10FPY011,459$268
Hubbell ME80HPT1,424$261
Noritz NHP801,424$261

Run your own numbers

Your rate, your numbers

Per day
74¢
Per month
$22.42
Per year
$269

1,467 kWh/yr × 18.3¢/kWh = $269/yr

Prefilled with this model's certified 1,467 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 Noritz NHP120 use?
ENERGY STAR certifies the Noritz NHP120 at 1,467 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 NHP120 cost to run per month?
About $22.42 a month at the U.S. average residential rate (18.3¢/kWh) — 74¢ a day, or $269 a year. Your state's rate moves this up or down; see the table above.
Is the Noritz NHP120 energy efficient?
It uses 21% more electricity than the median certified electric water heater, which puts it among the least efficient certified models.
What does the Noritz NHP120 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $192 a year in Nevada (13.1¢/kWh) and $773 in Hawaii (52.7¢/kWh).

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