WattCost

Data through April 2026

Running cost · Dishwashers · ENERGY STAR certified

Summit DW186NT

Across a standard year of loads (215 cycles under the DOE test), the Summit DW186NT uses 234 kWh — about $44 at the U.S. average electricity rate, or roughly 20¢ per load. That's close to the middle of the certified pack — about 2% under the median dishwasher, ranked 244 of 677. The same unit costs $29 a year in North Dakota but $109 in Hawaii — electricity rates, not the appliance, make the difference. Electricity is only part of the story for a dishwasher — check the water figure in the specs below.

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

$44/yr

$15 · cheapest certified dishwashers$45 · priciest
Per month
$3.67
Per day
12¢
Certified use
234 kWh/yr
Type
Standard
Capacity
10 place settings
Water use
3 gal/cycle
Tub material
Stainless Steel
Drying method
Condensation Dry
80 kWh240 kWh
Where the Summit DW186NT (▮) sits among all 677 certified dishwashers, by annual kWh

What it costs in every state

Summit DW186NT: 234 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$41
Alaska27.4¢$64
Arizona15.5¢$36
Arkansas14.2¢$33
California35.3¢$82
Colorado16.5¢$39
Connecticut32.2¢$75
Delaware18.8¢$44
District of Columbia25.4¢$59
Florida15.4¢$36
Georgia15.4¢$36
Hawaiipriciest46.6¢$109
Idaho12.7¢$30
Illinois20.5¢$48
Indiana17.9¢$42
Iowa13.9¢$32
Kansas15.8¢$37
Kentucky15.0¢$35
Louisiana14.4¢$34
Maine28.4¢$67
Maryland22.1¢$52
Massachusetts29.4¢$69
Michigan21.4¢$50
Minnesota16.4¢$38
Mississippi16.8¢$39
Missouri14.0¢$33
Montana13.9¢$33
Nebraska13.3¢$31
Nevada14.3¢$33
New Hampshire27.2¢$64
New Jersey23.5¢$55
New Mexico15.2¢$35
New York29.4¢$69
North Carolina16.3¢$38
North Dakotacheapest12.3¢$29
Ohio19.5¢$46
Oklahoma13.3¢$31
Oregon15.8¢$37
Pennsylvania21.5¢$50
Rhode Island28.3¢$66
South Carolina17.1¢$40
South Dakota14.5¢$34
Tennessee14.9¢$35
Texas17.0¢$40
Utah13.3¢$31
Vermont24.6¢$57
Virginia17.4¢$41
Washington14.4¢$34
West Virginia16.1¢$38
Wisconsin19.2¢$45
Wyoming14.7¢$34

Certified models closest in efficiency

dishwashers within reach of 234 kWh/yr
ModelkWh/yr$/yr (US avg)
AEG F8242FI234$44
AEG F8242FI-18234$44
AEG F8642FI234$44
AEG F8642SS234$44
Beko DDN25401234$44
Beko DDN25402234$44

Run your own numbers

Your rate, your numbers

Per day
12¢
Per month
$3.67
Per year
$44

234 kWh/yr × 18.8¢/kWh = $44/yr

Prefilled with this model's certified 234 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh assumes 215 wash cycles per year (the DOE standard, roughly 4 loads a week) and includes the energy to heat water.

Questions, answered with the data

How much electricity does the Summit DW186NT use?
ENERGY STAR certifies the Summit DW186NT at 234 kWh per year. The certified annual kWh assumes 215 wash cycles per year (the DOE standard, roughly 4 loads a week) and includes the energy to heat water.
How much does the Summit DW186NT cost to run per month?
About $3.67 a month at the U.S. average residential rate (18.8¢/kWh) — 12¢ a day, or $44 a year. Your state's rate moves this up or down; see the table above.
Is the Summit DW186NT energy efficient?
It uses 2% less electricity than the median certified dishwasher.
What does the Summit DW186NT cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $29 a year in North Dakota (12.3¢/kWh) and $109 in Hawaii (46.6¢/kWh).
What does one load cost with the Summit DW186NT?
Roughly 20¢ per cycle at the U.S. average rate, based on the DOE test's 215 cycles a year.

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