WattCost

Data through June 2026

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

LG APHWC502M

Heating a typical household's hot water, the LG APHWC502M is certified at 1,181 kWh a year — about $217 at the U.S. average electricity rate, or $18.05 a month. Efficiency-wise it's unremarkable in a good way: within 2% of the median certified electric water heater (rank 250 of 510). The same unit costs $155 a year in Nevada but $623 in Hawaii — electricity rates, not the appliance, make the difference.

Dimensions 47.6" H × 19.7" W

Estimated annual running cost · U.S. average rate 18.3¢/kWh

$217/yr

$125 · cheapest certified water heaters (electric)$319 · priciest
Per month
$18.05
Per day
59¢
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
681 kWh1,741 kWh
Where the LG APHWC502M (▮) sits among all 510 certified water heaters (electric), by annual kWh

What it costs in every state

LG APHWC502M: 1,181 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$194
Alaska28.2¢$333
Arizona15.2¢$179
Arkansas14.1¢$167
California34.7¢$410
Colorado17.1¢$202
Connecticut24.3¢$287
Delaware19.3¢$228
District of Columbia24.4¢$288
Florida15.1¢$178
Georgia16.4¢$193
Hawaiipriciest52.7¢$623
Idaho14.4¢$170
Illinois19.9¢$235
Indiana17.5¢$207
Iowa15.9¢$188
Kansas15.7¢$186
Kentucky14.3¢$168
Louisiana13.5¢$159
Maine29.6¢$349
Maryland21.8¢$258
Massachusetts29.6¢$350
Michigan23.0¢$272
Minnesota17.5¢$207
Mississippi14.9¢$176
Missouri16.2¢$192
Montana15.1¢$179
Nebraska13.3¢$156
Nevadacheapest13.1¢$155
New Hampshire27.0¢$319
New Jersey24.9¢$295
New Mexico15.1¢$178
New York29.5¢$348
North Carolina14.7¢$174
North Dakota14.1¢$167
Ohio19.2¢$227
Oklahoma14.3¢$169
Oregon16.3¢$193
Pennsylvania21.7¢$257
Rhode Island29.2¢$345
South Carolina15.6¢$184
South Dakota15.4¢$181
Tennessee14.1¢$166
Texas15.9¢$188
Utah13.4¢$158
Vermont24.4¢$289
Virginia17.2¢$203
Washington14.9¢$176
West Virginia15.4¢$182
Wisconsin19.6¢$231
Wyoming15.2¢$180

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$217
JETGLAS RE2HP65*-1NCTT1,181$217
LG APHWC502D1,181$217
LG APHWC502L1,181$217
Smart Solar SSG2-ES 801,192$219
Arctic Arctic-HP-Hot Water-KA06-801,200$220

Run your own numbers

Your rate, your numbers

Per day
59¢
Per month
$18.05
Per year
$217

1,181 kWh/yr × 18.3¢/kWh = $217/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 APHWC502M use?
ENERGY STAR certifies the LG APHWC502M 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 APHWC502M cost to run per month?
About $18.05 a month at the U.S. average residential rate (18.3¢/kWh) — 59¢ a day, or $217 a year. Your state's rate moves this up or down; see the table above.
Is the LG APHWC502M energy efficient?
It uses 2% less electricity than the median certified electric water heater.
What does the LG APHWC502M cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $155 a year in Nevada (13.1¢/kWh) and $623 in Hawaii (52.7¢/kWh).

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