WattCost

Data through April 2026

Running cost · Room Air Conditioners · ENERGY STAR certified

HOUSE KOBO KOBOGJC12BU

Under the DOE test basis of 750 hours a year, the HOUSE KOBO KOBOGJC12BU draws 587 kWh — about $110 at the U.S. average rate, concentrated in the months you actually run it. Efficiency-wise it's unremarkable in a good way: within 10% of the median certified room air conditioner (rank 215 of 396). Where you live moves the bill from $72 a year in North Dakota to $274 in Hawaii.

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

$110/yr

$52 · cheapest certified room air conditioners$395 · priciest
Per month
$9.21
Per day
30¢
Certified use
587 kWh/yr
Cooling capacity
11,500 BTU/hr
CEER
14.7
Mounting
Straddles Window
Variable-speed compressor
Yes
274 kWh2,096 kWh
Where the HOUSE KOBO KOBOGJC12BU (▮) sits among all 396 certified room air conditioners, by annual kWh

What it costs in every state

HOUSE KOBO KOBOGJC12BU: 587 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$102
Alaska27.4¢$160
Arizona15.5¢$91
Arkansas14.2¢$83
California35.3¢$207
Colorado16.5¢$97
Connecticut32.2¢$189
Delaware18.8¢$110
District of Columbia25.4¢$149
Florida15.4¢$90
Georgia15.4¢$90
Hawaiipriciest46.6¢$274
Idaho12.7¢$75
Illinois20.5¢$120
Indiana17.9¢$105
Iowa13.9¢$81
Kansas15.8¢$93
Kentucky15.0¢$88
Louisiana14.4¢$85
Maine28.4¢$167
Maryland22.1¢$129
Massachusetts29.4¢$173
Michigan21.4¢$125
Minnesota16.4¢$96
Mississippi16.8¢$98
Missouri14.0¢$82
Montana13.9¢$82
Nebraska13.3¢$78
Nevada14.3¢$84
New Hampshire27.2¢$160
New Jersey23.5¢$138
New Mexico15.2¢$89
New York29.4¢$173
North Carolina16.3¢$95
North Dakotacheapest12.3¢$72
Ohio19.5¢$114
Oklahoma13.3¢$78
Oregon15.8¢$93
Pennsylvania21.5¢$126
Rhode Island28.3¢$166
South Carolina17.1¢$100
South Dakota14.5¢$85
Tennessee14.9¢$88
Texas17.0¢$100
Utah13.3¢$78
Vermont24.6¢$144
Virginia17.4¢$102
Washington14.4¢$84
West Virginia16.1¢$94
Wisconsin19.2¢$113
Wyoming14.7¢$86

Certified models closest in efficiency

room air conditioners within reach of 587 kWh/yr
ModelkWh/yr$/yr (US avg)
GREE GJC12BU-A6DRNJ2A587$110
Midea 1010451379592$111
Midea 1014278205592$111
Midea MAW12U1QWT592$111
Midea MAW12U2QWT592$111
Midea MWAUQB-12CRFN8-BCN12592$111

Run your own numbers

Your rate, your numbers

Per day
30¢
Per month
$9.21
Per year
$111

587 kWh/yr × 18.8¢/kWh = $111/yr

Prefilled with this model's certified 587 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 HOUSE KOBO KOBOGJC12BU use?
ENERGY STAR certifies the HOUSE KOBO KOBOGJC12BU at 587 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 HOUSE KOBO KOBOGJC12BU cost to run per month?
About $9.21 a month at the U.S. average residential rate (18.8¢/kWh) — 30¢ a day, or $110 a year. Your state's rate moves this up or down; see the table above.
Is the HOUSE KOBO KOBOGJC12BU energy efficient?
It uses 10% more electricity than the median certified room air conditioner.
What does the HOUSE KOBO KOBOGJC12BU cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $72 a year in North Dakota (12.3¢/kWh) and $274 in Hawaii (46.6¢/kWh).

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