WattCost

Data through April 2026

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

Rheem XE65T10HMS00U0

For a standard household draw pattern, the Rheem XE65T10HMS00U0 uses a certified 971 kWh per year: roughly $183 annually at the national average rate. Efficiency-wise it's unremarkable in a good way: within 10% of the median certified electric water heater (rank 261 of 566). Where you live moves the bill from $120 a year in North Dakota to $453 in Hawaii.

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

$183/yr

$121 · cheapest certified water heaters (electric)$328 · priciest
Per month
$15.24
Per day
50¢
Certified use
971 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
120 Volt Integrated HPWH
Storage volume
59 gal
First-hour rating
63 gal
UEF
3.12
643 kWh1,741 kWh
Where the Rheem XE65T10HMS00U0 (▮) sits among all 566 certified water heaters (electric), by annual kWh

What it costs in every state

Rheem XE65T10HMS00U0: 971 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$169
Alaska27.4¢$266
Arizona15.5¢$150
Arkansas14.2¢$137
California35.3¢$342
Colorado16.5¢$161
Connecticut32.2¢$313
Delaware18.8¢$182
District of Columbia25.4¢$247
Florida15.4¢$149
Georgia15.4¢$149
Hawaiipriciest46.6¢$453
Idaho12.7¢$123
Illinois20.5¢$199
Indiana17.9¢$174
Iowa13.9¢$135
Kansas15.8¢$153
Kentucky15.0¢$146
Louisiana14.4¢$140
Maine28.4¢$276
Maryland22.1¢$214
Massachusetts29.4¢$286
Michigan21.4¢$208
Minnesota16.4¢$159
Mississippi16.8¢$163
Missouri14.0¢$136
Montana13.9¢$135
Nebraska13.3¢$129
Nevada14.3¢$139
New Hampshire27.2¢$265
New Jersey23.5¢$228
New Mexico15.2¢$147
New York29.4¢$286
North Carolina16.3¢$158
North Dakotacheapest12.3¢$120
Ohio19.5¢$189
Oklahoma13.3¢$129
Oregon15.8¢$153
Pennsylvania21.5¢$208
Rhode Island28.3¢$275
South Carolina17.1¢$166
South Dakota14.5¢$141
Tennessee14.9¢$145
Texas17.0¢$165
Utah13.3¢$129
Vermont24.6¢$238
Virginia17.4¢$169
Washington14.4¢$139
West Virginia16.1¢$156
Wisconsin19.2¢$187
Wyoming14.7¢$143

Certified models closest in efficiency

electric water heaters within reach of 971 kWh/yr
ModelkWh/yr$/yr (US avg)
Friedrich PROH65 T0 FD120-M971$183
Friedrich PROH65 T0 FD120-MSO971$183
Rheem PROPH65 T0 RH120-M971$183
Rheem PROPH65 T0 RH120-MSO971$183
Rheem XE65T10HM00U0971$183
Richmond 10E65-HP120M971$183

Run your own numbers

Your rate, your numbers

Per day
50¢
Per month
$15.24
Per year
$183

971 kWh/yr × 18.8¢/kWh = $183/yr

Prefilled with this model's certified 971 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 Rheem XE65T10HMS00U0 use?
ENERGY STAR certifies the Rheem XE65T10HMS00U0 at 971 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 Rheem XE65T10HMS00U0 cost to run per month?
About $15.24 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 Rheem XE65T10HMS00U0 energy efficient?
It uses 10% less electricity than the median certified electric water heater.
What does the Rheem XE65T10HMS00U0 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 $453 in Hawaii (46.6¢/kWh).

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