WattCost

Data through June 2026

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

Lochinvar CHPA-50 2

Heating a typical household's hot water, the Lochinvar CHPA-50 2 is certified at 883 kWh a year — about $162 at the U.S. average electricity rate, or $13.50 a month. Compared with the median certified electric water heater, it uses 27% less electricity — rank 96 out of 510. Where you live moves the bill from $116 a year in Nevada to $466 in Hawaii.

Dimensions 63" H × 15" W

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

$162/yr

$125 · cheapest certified water heaters (electric)$319 · priciest
Per month
$13.50
Per day
44¢
Certified use
883 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
240 Volt Integrated HPWH
Storage volume
46 gal
First-hour rating
65 gal
UEF
3.68
681 kWh1,741 kWh
Where the Lochinvar CHPA-50 2 (▮) sits among all 510 certified water heaters (electric), by annual kWh

What it costs in every state

Lochinvar CHPA-50 2: 883 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$145
Alaska28.2¢$249
Arizona15.2¢$134
Arkansas14.1¢$125
California34.7¢$307
Colorado17.1¢$151
Connecticut24.3¢$215
Delaware19.3¢$170
District of Columbia24.4¢$215
Florida15.1¢$133
Georgia16.4¢$144
Hawaiipriciest52.7¢$466
Idaho14.4¢$127
Illinois19.9¢$176
Indiana17.5¢$155
Iowa15.9¢$141
Kansas15.7¢$139
Kentucky14.3¢$126
Louisiana13.5¢$119
Maine29.6¢$261
Maryland21.8¢$193
Massachusetts29.6¢$261
Michigan23.0¢$203
Minnesota17.5¢$155
Mississippi14.9¢$131
Missouri16.2¢$143
Montana15.1¢$134
Nebraska13.3¢$117
Nevadacheapest13.1¢$116
New Hampshire27.0¢$238
New Jersey24.9¢$220
New Mexico15.1¢$133
New York29.5¢$260
North Carolina14.7¢$130
North Dakota14.1¢$125
Ohio19.2¢$169
Oklahoma14.3¢$127
Oregon16.3¢$144
Pennsylvania21.7¢$192
Rhode Island29.2¢$258
South Carolina15.6¢$137
South Dakota15.4¢$136
Tennessee14.1¢$124
Texas15.9¢$141
Utah13.4¢$118
Vermont24.4¢$216
Virginia17.2¢$152
Washington14.9¢$132
West Virginia15.4¢$136
Wisconsin19.6¢$173
Wyoming15.2¢$135

Certified models closest in efficiency

electric water heaters within reach of 883 kWh/yr
ModelkWh/yr$/yr (US avg)
A. O. Smith CAHP-50 2883$162
A. O. Smith HPA10-50H45DV 2883$162
A. O. Smith HPTA-50 2883$162
American HPA10250H045DV 2883$162
Lochinvar HPPA050KD 2883$162
RELIANCE WATER HEATERS 10-50-DHPTA 2883$162

Run your own numbers

Your rate, your numbers

Per day
44¢
Per month
$13.50
Per year
$162

883 kWh/yr × 18.3¢/kWh = $162/yr

Prefilled with this model's certified 883 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 Lochinvar CHPA-50 2 use?
ENERGY STAR certifies the Lochinvar CHPA-50 2 at 883 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 Lochinvar CHPA-50 2 cost to run per month?
About $13.50 a month at the U.S. average residential rate (18.3¢/kWh) — 44¢ a day, or $162 a year. Your state's rate moves this up or down; see the table above.
Is the Lochinvar CHPA-50 2 energy efficient?
It uses 27% less electricity than the median certified electric water heater, placing it in the efficient third of certified models.
What does the Lochinvar CHPA-50 2 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $116 a year in Nevada (13.1¢/kWh) and $466 in Hawaii (52.7¢/kWh).

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