WattCost

Data through April 2026

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

Noritz NHP65

For a standard household draw pattern, the Noritz NHP65 uses a certified 974 kWh per year: roughly $183 annually at the national average rate. That's close to the middle of the certified pack — about 10% under the median electric water heater, ranked 267 of 566. The same unit costs $120 a year in North Dakota but $454 in Hawaii — electricity rates, not the appliance, make the difference.

Estimated annual running cost · U.S. average rate 18.8¢/kWh

$183/yr

$121 · cheapest certified water heaters (electric)$328 · priciest
Per month
$15.28
Per day
50¢
Certified use
974 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
240 Volt Integrated HPWH
Storage volume
57 gal
First-hour rating
70 gal
UEF
3.34
643 kWh1,741 kWh
Where the Noritz NHP65 (▮) sits among all 566 certified water heaters (electric), by annual kWh

What it costs in every state

Noritz NHP65: 974 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$170
Alaska27.4¢$266
Arizona15.5¢$151
Arkansas14.2¢$138
California35.3¢$343
Colorado16.5¢$161
Connecticut32.2¢$314
Delaware18.8¢$183
District of Columbia25.4¢$247
Florida15.4¢$150
Georgia15.4¢$150
Hawaiipriciest46.6¢$454
Idaho12.7¢$124
Illinois20.5¢$199
Indiana17.9¢$174
Iowa13.9¢$135
Kansas15.8¢$154
Kentucky15.0¢$146
Louisiana14.4¢$141
Maine28.4¢$277
Maryland22.1¢$215
Massachusetts29.4¢$287
Michigan21.4¢$208
Minnesota16.4¢$160
Mississippi16.8¢$163
Missouri14.0¢$136
Montana13.9¢$135
Nebraska13.3¢$129
Nevada14.3¢$139
New Hampshire27.2¢$265
New Jersey23.5¢$229
New Mexico15.2¢$148
New York29.4¢$287
North Carolina16.3¢$158
North Dakotacheapest12.3¢$120
Ohio19.5¢$190
Oklahoma13.3¢$130
Oregon15.8¢$154
Pennsylvania21.5¢$209
Rhode Island28.3¢$276
South Carolina17.1¢$166
South Dakota14.5¢$141
Tennessee14.9¢$146
Texas17.0¢$165
Utah13.3¢$129
Vermont24.6¢$239
Virginia17.4¢$169
Washington14.4¢$140
West Virginia16.1¢$156
Wisconsin19.2¢$187
Wyoming14.7¢$143

Certified models closest in efficiency

electric water heaters within reach of 974 kWh/yr
ModelkWh/yr$/yr (US avg)
Hubbell ME65HPT974$183
VAUGHN THERMAL ME65HPT974$183
VAUGHN THERMAL ME65HPT-CN974$183
Friedrich PROH65 T0 FD120-M971$183
Friedrich PROH65 T0 FD120-MSO971$183
Rheem PROPH65 T0 RH120-M971$183

Run your own numbers

Your rate, your numbers

Per day
50¢
Per month
$15.28
Per year
$183

974 kWh/yr × 18.8¢/kWh = $183/yr

Prefilled with this model's certified 974 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

NHP65 · NHP65

Questions, answered with the data

How much electricity does the Noritz NHP65 use?
ENERGY STAR certifies the Noritz NHP65 at 974 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 NHP65 cost to run per month?
About $15.28 a month at the U.S. average residential rate (18.8¢/kWh) — 50¢ a day, or $183 a year. Your state's rate moves this up or down; see the table above.
Is the Noritz NHP65 energy efficient?
It uses 10% less electricity than the median certified electric water heater.
What does the Noritz NHP65 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $120 a year in North Dakota (12.3¢/kWh) and $454 in Hawaii (46.6¢/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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