WattCost

Data through June 2026

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

Midea MCHW-50VN3B

For a standard household draw pattern, the Midea MCHW-50VN3B uses a certified 861 kWh per year: roughly $158 annually at the national average rate. That's 29% less than the median certified electric water heater, placing it comfortably in the efficient third of the field (70 of 510). The same unit costs $113 a year in Nevada but $454 in Hawaii — electricity rates, not the appliance, make the difference.

Dimensions 46.6" H × 18.3" W

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

$158/yr

$125 · cheapest certified water heaters (electric)$319 · priciest
Per month
$13.16
Per day
43¢
Certified use
861 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
240 Volt Integrated HPWH
Storage volume
46 gal
First-hour rating
71 gal
UEF
3.75
681 kWh1,741 kWh
Where the Midea MCHW-50VN3B (▮) sits among all 510 certified water heaters (electric), by annual kWh

What it costs in every state

Midea MCHW-50VN3B: 861 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$141
Alaska28.2¢$243
Arizona15.2¢$131
Arkansas14.1¢$122
California34.7¢$299
Colorado17.1¢$147
Connecticut24.3¢$209
Delaware19.3¢$166
District of Columbia24.4¢$210
Florida15.1¢$130
Georgia16.4¢$141
Hawaiipriciest52.7¢$454
Idaho14.4¢$124
Illinois19.9¢$171
Indiana17.5¢$151
Iowa15.9¢$137
Kansas15.7¢$135
Kentucky14.3¢$123
Louisiana13.5¢$116
Maine29.6¢$255
Maryland21.8¢$188
Massachusetts29.6¢$255
Michigan23.0¢$198
Minnesota17.5¢$151
Mississippi14.9¢$128
Missouri16.2¢$140
Montana15.1¢$130
Nebraska13.3¢$114
Nevadacheapest13.1¢$113
New Hampshire27.0¢$233
New Jersey24.9¢$215
New Mexico15.1¢$130
New York29.5¢$254
North Carolina14.7¢$127
North Dakota14.1¢$122
Ohio19.2¢$165
Oklahoma14.3¢$123
Oregon16.3¢$141
Pennsylvania21.7¢$187
Rhode Island29.2¢$252
South Carolina15.6¢$134
South Dakota15.4¢$132
Tennessee14.1¢$121
Texas15.9¢$137
Utah13.4¢$115
Vermont24.4¢$210
Virginia17.2¢$148
Washington14.9¢$128
West Virginia15.4¢$133
Wisconsin19.6¢$168
Wyoming15.2¢$131

Certified models closest in efficiency

electric water heaters within reach of 861 kWh/yr
ModelkWh/yr$/yr (US avg)
Midea CAN3-RSJ-15/190RDVN3-L4861$158
Midea MAHW-50VN3B861$158
Midea US3-RSJ-15/190RDVN3-L4861$158
Rinnai REHP50CW861$158
Rinnai REHP50W861$158
LG R5TT20F-SA0 (208V)866$159

Run your own numbers

Your rate, your numbers

Per day
43¢
Per month
$13.16
Per year
$158

861 kWh/yr × 18.3¢/kWh = $158/yr

Prefilled with this model's certified 861 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 Midea MCHW-50VN3B use?
ENERGY STAR certifies the Midea MCHW-50VN3B at 861 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 Midea MCHW-50VN3B cost to run per month?
About $13.16 a month at the U.S. average residential rate (18.3¢/kWh) — 43¢ a day, or $158 a year. Your state's rate moves this up or down; see the table above.
Is the Midea MCHW-50VN3B energy efficient?
It uses 29% less electricity than the median certified electric water heater, placing it in the efficient third of certified models.
What does the Midea MCHW-50VN3B cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $113 a year in Nevada (13.1¢/kWh) and $454 in Hawaii (52.7¢/kWh).

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