WattCost

Data through April 2026

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

LG APHWC502L

Heating a typical household's hot water, the LG APHWC502L is certified at 1,181 kWh a year — about $222 at the U.S. average electricity rate, or $18.53 a month. Efficiency-wise it's unremarkable in a good way: within 9% of the median certified electric water heater (rank 297 of 566). Where you live moves the bill from $146 a year in North Dakota to $551 in Hawaii.

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

$222/yr

$121 · cheapest certified water heaters (electric)$328 · priciest
Per month
$18.53
Per day
61¢
Certified use
1,181 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
240 Volt Integrated HPWH
Storage volume
53 gal
First-hour rating
81 gal
UEF
4.2
643 kWh1,741 kWh
Where the LG APHWC502L (▮) sits among all 566 certified water heaters (electric), by annual kWh

What it costs in every state

LG APHWC502L: 1,181 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$206
Alaska27.4¢$323
Arizona15.5¢$183
Arkansas14.2¢$167
California35.3¢$416
Colorado16.5¢$195
Connecticut32.2¢$381
Delaware18.8¢$222
District of Columbia25.4¢$300
Florida15.4¢$182
Georgia15.4¢$182
Hawaiipriciest46.6¢$551
Idaho12.7¢$150
Illinois20.5¢$242
Indiana17.9¢$211
Iowa13.9¢$164
Kansas15.8¢$186
Kentucky15.0¢$177
Louisiana14.4¢$171
Maine28.4¢$336
Maryland22.1¢$261
Massachusetts29.4¢$348
Michigan21.4¢$253
Minnesota16.4¢$194
Mississippi16.8¢$198
Missouri14.0¢$165
Montana13.9¢$164
Nebraska13.3¢$157
Nevada14.3¢$169
New Hampshire27.2¢$322
New Jersey23.5¢$278
New Mexico15.2¢$179
New York29.4¢$348
North Carolina16.3¢$192
North Dakotacheapest12.3¢$146
Ohio19.5¢$230
Oklahoma13.3¢$157
Oregon15.8¢$186
Pennsylvania21.5¢$254
Rhode Island28.3¢$334
South Carolina17.1¢$201
South Dakota14.5¢$171
Tennessee14.9¢$176
Texas17.0¢$201
Utah13.3¢$157
Vermont24.6¢$290
Virginia17.4¢$205
Washington14.4¢$170
West Virginia16.1¢$190
Wisconsin19.2¢$227
Wyoming14.7¢$173

Certified models closest in efficiency

electric water heaters within reach of 1,181 kWh/yr
ModelkWh/yr$/yr (US avg)
Bradford White RE2HP65**-1NCTT1,181$222
JETGLAS RE2HP65*-1NCTT1,181$222
LG APHWC502D1,181$222
LG APHWC502M1,181$222
Friedrich PROH65 T2 FD400-301,184$223
Friedrich PROH65 T2 FD400-SO1,184$223

Run your own numbers

Your rate, your numbers

Per day
61¢
Per month
$18.53
Per year
$222

1,181 kWh/yr × 18.8¢/kWh = $222/yr

Prefilled with this model's certified 1,181 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 LG APHWC502L use?
ENERGY STAR certifies the LG APHWC502L at 1,181 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 LG APHWC502L cost to run per month?
About $18.53 a month at the U.S. average residential rate (18.8¢/kWh) — 61¢ a day, or $222 a year. Your state's rate moves this up or down; see the table above.
Is the LG APHWC502L energy efficient?
It uses 9% more electricity than the median certified electric water heater.
What does the LG APHWC502L cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $146 a year in North Dakota (12.3¢/kWh) and $551 in Hawaii (46.6¢/kWh).

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