WattCost

Data through April 2026

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

State HP6-66-DHPT 1

For a standard household draw pattern, the State HP6-66-DHPT 1 uses a certified 1,391 kWh per year: roughly $262 annually at the national average rate. It sits near the bottom of the certified table — using 29% more than the median electric water heater (rank 519 of 566) — so the state you live in matters more than usual. Where you live moves the bill from $172 a year in North Dakota to $648 in Hawaii.

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

$262/yr

$121 · cheapest certified water heaters (electric)$328 · priciest
Per month
$21.83
Per day
72¢
Certified use
1,391 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
240 Volt Integrated HPWH
Storage volume
67 gal
First-hour rating
79 gal
UEF
3.42
643 kWh1,741 kWh
Where the State HP6-66-DHPT 1 (▮) sits among all 566 certified water heaters (electric), by annual kWh

What it costs in every state

State HP6-66-DHPT 1: 1,391 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$242
Alaska27.4¢$380
Arizona15.5¢$215
Arkansas14.2¢$197
California35.3¢$490
Colorado16.5¢$230
Connecticut32.2¢$448
Delaware18.8¢$261
District of Columbia25.4¢$353
Florida15.4¢$214
Georgia15.4¢$214
Hawaiipriciest46.6¢$648
Idaho12.7¢$177
Illinois20.5¢$285
Indiana17.9¢$249
Iowa13.9¢$193
Kansas15.8¢$219
Kentucky15.0¢$209
Louisiana14.4¢$201
Maine28.4¢$395
Maryland22.1¢$307
Massachusetts29.4¢$410
Michigan21.4¢$298
Minnesota16.4¢$228
Mississippi16.8¢$233
Missouri14.0¢$195
Montana13.9¢$193
Nebraska13.3¢$185
Nevada14.3¢$199
New Hampshire27.2¢$379
New Jersey23.5¢$327
New Mexico15.2¢$211
New York29.4¢$410
North Carolina16.3¢$226
North Dakotacheapest12.3¢$172
Ohio19.5¢$271
Oklahoma13.3¢$185
Oregon15.8¢$219
Pennsylvania21.5¢$299
Rhode Island28.3¢$394
South Carolina17.1¢$237
South Dakota14.5¢$202
Tennessee14.9¢$208
Texas17.0¢$236
Utah13.3¢$185
Vermont24.6¢$342
Virginia17.4¢$242
Washington14.4¢$200
West Virginia16.1¢$223
Wisconsin19.2¢$267
Wyoming14.7¢$204

Certified models closest in efficiency

electric water heaters within reach of 1,391 kWh/yr
ModelkWh/yr$/yr (US avg)
A. O. Smith FPTU-66 11,391$262
American HPHE6266H045DV 11,391$262
RELIANCE WATER HEATERS 6-66-DHPHT 11,391$262
U.S. Craftmaster HPHE2F66HD045VU 11,391$262
A. O. Smith HP1080H45DV 11,387$261
A. O. Smith HP1080H45DVCTA-11,387$261

Run your own numbers

Your rate, your numbers

Per day
72¢
Per month
$21.83
Per year
$262

1,391 kWh/yr × 18.8¢/kWh = $262/yr

Prefilled with this model's certified 1,391 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 HP6-66-DHPT 1 use?
ENERGY STAR certifies the State HP6-66-DHPT 1 at 1,391 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 HP6-66-DHPT 1 cost to run per month?
About $21.83 a month at the U.S. average residential rate (18.8¢/kWh) — 72¢ a day, or $262 a year. Your state's rate moves this up or down; see the table above.
Is the State HP6-66-DHPT 1 energy efficient?
It uses 29% more electricity than the median certified electric water heater, which puts it among the least efficient certified models.
What does the State HP6-66-DHPT 1 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $172 a year in North Dakota (12.3¢/kWh) and $648 in Hawaii (46.6¢/kWh).

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