WattCost

Data through April 2026

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

Ariston ARIHPWH-80-T

Heating a typical household's hot water, the Ariston ARIHPWH-80-T is certified at 1,210 kWh a year — about $228 at the U.S. average electricity rate, or $18.99 a month. Efficiency-wise it's unremarkable in a good way: within 12% of the median certified electric water heater (rank 321 of 566). The same unit costs $149 a year in North Dakota but $564 in Hawaii — electricity rates, not the appliance, make the difference.

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

$228/yr

$121 · cheapest certified water heaters (electric)$328 · priciest
Per month
$18.99
Per day
62¢
Certified use
1,210 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
240 Volt Integrated HPWH
Storage volume
74 gal
First-hour rating
88 gal
UEF
4.1
643 kWh1,741 kWh
Where the Ariston ARIHPWH-80-T (▮) sits among all 566 certified water heaters (electric), by annual kWh

What it costs in every state

Ariston ARIHPWH-80-T: 1,210 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$211
Alaska27.4¢$331
Arizona15.5¢$187
Arkansas14.2¢$171
California35.3¢$427
Colorado16.5¢$200
Connecticut32.2¢$390
Delaware18.8¢$227
District of Columbia25.4¢$307
Florida15.4¢$186
Georgia15.4¢$186
Hawaiipriciest46.6¢$564
Idaho12.7¢$154
Illinois20.5¢$248
Indiana17.9¢$217
Iowa13.9¢$168
Kansas15.8¢$191
Kentucky15.0¢$182
Louisiana14.4¢$175
Maine28.4¢$344
Maryland22.1¢$267
Massachusetts29.4¢$356
Michigan21.4¢$259
Minnesota16.4¢$198
Mississippi16.8¢$203
Missouri14.0¢$170
Montana13.9¢$168
Nebraska13.3¢$161
Nevada14.3¢$173
New Hampshire27.2¢$330
New Jersey23.5¢$285
New Mexico15.2¢$183
New York29.4¢$356
North Carolina16.3¢$197
North Dakotacheapest12.3¢$149
Ohio19.5¢$236
Oklahoma13.3¢$161
Oregon15.8¢$191
Pennsylvania21.5¢$260
Rhode Island28.3¢$342
South Carolina17.1¢$206
South Dakota14.5¢$176
Tennessee14.9¢$181
Texas17.0¢$206
Utah13.3¢$161
Vermont24.6¢$297
Virginia17.4¢$210
Washington14.4¢$174
West Virginia16.1¢$194
Wisconsin19.2¢$232
Wyoming14.7¢$178

Certified models closest in efficiency

electric water heaters within reach of 1,210 kWh/yr
ModelkWh/yr$/yr (US avg)
Lennox WHHP080T45MD240S1,210$228
LG APHWC802D1,210$228
LG APHWC802L1,210$228
LG APHWC802M1,210$228
Friedrich PROH80 T2 FD400-301,213$228
Friedrich PROH80 T2 FD400-SO1,213$228

Run your own numbers

Your rate, your numbers

Per day
62¢
Per month
$18.99
Per year
$228

1,210 kWh/yr × 18.8¢/kWh = $228/yr

Prefilled with this model's certified 1,210 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 Ariston ARIHPWH-80-T use?
ENERGY STAR certifies the Ariston ARIHPWH-80-T at 1,210 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 Ariston ARIHPWH-80-T cost to run per month?
About $18.99 a month at the U.S. average residential rate (18.8¢/kWh) — 62¢ a day, or $228 a year. Your state's rate moves this up or down; see the table above.
Is the Ariston ARIHPWH-80-T energy efficient?
It uses 12% more electricity than the median certified electric water heater.
What does the Ariston ARIHPWH-80-T cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $149 a year in North Dakota (12.3¢/kWh) and $564 in Hawaii (46.6¢/kWh).

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