WattCost

Data through June 2026

Running cost · Room Air Conditioners · ENERGY STAR certified

Midea MAW18S2VWT-A

The Midea MAW18S2VWT-A is certified at 900 kWh per year (based on 750 standardized hours), roughly $165 at the national average — though seasonal use means your real bill lands in a few months, not twelve. Even among certified models it's on the thirsty end: 69% more electricity than the median room air conditioner, ranked 393 of 439. The same unit costs $118 a year in Nevada but $474 in Hawaii — electricity rates, not the appliance, make the difference.

Uses 40% less energy than the U.S. federal minimum

Dimensions 17.9" H × 23.6" W × 25.4" D, 95.9 lb

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

$165/yr

$48 · cheapest certified room air conditioners$384 · priciest
Per month
$13.76
Per day
45¢
Certified use
900 kWh/yr
Cooling capacity
18,000 BTU/hr
CEER
15
Mounting
Does Not Straddle Window or Windowsill
Variable-speed compressor
Yes
260 kWh2,096 kWh
Where the Midea MAW18S2VWT-A (▮) sits among all 439 certified room air conditioners, by annual kWh

What it costs in every state

Midea MAW18S2VWT-A: 900 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$148
Alaska28.2¢$254
Arizona15.2¢$137
Arkansas14.1¢$127
California34.7¢$313
Colorado17.1¢$154
Connecticut24.3¢$219
Delaware19.3¢$174
District of Columbia24.4¢$220
Florida15.1¢$136
Georgia16.4¢$147
Hawaiipriciest52.7¢$474
Idaho14.4¢$129
Illinois19.9¢$179
Indiana17.5¢$158
Iowa15.9¢$143
Kansas15.7¢$141
Kentucky14.3¢$128
Louisiana13.5¢$121
Maine29.6¢$266
Maryland21.8¢$197
Massachusetts29.6¢$266
Michigan23.0¢$207
Minnesota17.5¢$158
Mississippi14.9¢$134
Missouri16.2¢$146
Montana15.1¢$136
Nebraska13.3¢$119
Nevadacheapest13.1¢$118
New Hampshire27.0¢$243
New Jersey24.9¢$225
New Mexico15.1¢$136
New York29.5¢$265
North Carolina14.7¢$133
North Dakota14.1¢$127
Ohio19.2¢$173
Oklahoma14.3¢$129
Oregon16.3¢$147
Pennsylvania21.7¢$196
Rhode Island29.2¢$263
South Carolina15.6¢$140
South Dakota15.4¢$138
Tennessee14.1¢$127
Texas15.9¢$143
Utah13.4¢$120
Vermont24.4¢$220
Virginia17.2¢$155
Washington14.9¢$134
West Virginia15.4¢$139
Wisconsin19.6¢$176
Wyoming15.2¢$137

Certified models closest in efficiency

room air conditioners within reach of 900 kWh/yr
ModelkWh/yr$/yr (US avg)
Frigidaire FHWW185WE2900$165
Hisense AW1823TW3W900$165
Keplerx KBRC18RSVE2900$165
Keystone KSTAW182WA900$165
Midea MAW18R2VWT900$165
Midea MAW18RV1CWT900$165

Run your own numbers

Your rate, your numbers

Per day
45¢
Per month
$13.76
Per year
$165

900 kWh/yr × 18.3¢/kWh = $165/yr

Prefilled with this model's certified 900 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh assumes 750 cooling hours per year (the DOE standard). In hot climates real usage can run well above that; in mild ones, below.

Questions, answered with the data

How much electricity does the Midea MAW18S2VWT-A use?
ENERGY STAR certifies the Midea MAW18S2VWT-A at 900 kWh per year. The certified annual kWh assumes 750 cooling hours per year (the DOE standard). In hot climates real usage can run well above that; in mild ones, below.
How much does the Midea MAW18S2VWT-A cost to run per month?
About $13.76 a month at the U.S. average residential rate (18.3¢/kWh) — 45¢ a day, or $165 a year. Your state's rate moves this up or down; see the table above.
Is the Midea MAW18S2VWT-A energy efficient?
It uses 69% more electricity than the median certified room air conditioner, which puts it among the least efficient certified models.
What does the Midea MAW18S2VWT-A cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $118 a year in Nevada (13.1¢/kWh) and $474 in Hawaii (52.7¢/kWh).

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