WattCost

Data through June 2026

Running cost · Dishwashers · ENERGY STAR certified

Smeg DW8620

The Smeg DW8620 is certified at 235 kWh per year over the DOE test's 215 annual cycles, which comes to about $43 a year — call it 20¢ every time you run it. That's close to the middle of the certified pack — about 2% under the median dishwasher, ranked 273 of 697. The same unit costs $31 a year in Nevada but $124 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.

Uses 7% less energy than the U.S. federal minimum

Dimensions 24" W × 24" D

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

$43/yr

$15 · cheapest certified dishwashers$44 · priciest
Per month
$3.59
Per day
12¢
Certified use
235 kWh/yr
Type
Standard
Capacity
15 place settings
Water use
3.1 gal/cycle
Tub material
Hybrid (Plastic & Steel)
Drying method
Automatic Door Release
80 kWh240 kWh
Where the Smeg DW8620 (▮) sits among all 697 certified dishwashers, by annual kWh

What it costs in every state

Smeg DW8620: 235 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$39
Alaska28.2¢$66
Arizona15.2¢$36
Arkansas14.1¢$33
California34.7¢$82
Colorado17.1¢$40
Connecticut24.3¢$57
Delaware19.3¢$45
District of Columbia24.4¢$57
Florida15.1¢$35
Georgia16.4¢$38
Hawaiipriciest52.7¢$124
Idaho14.4¢$34
Illinois19.9¢$47
Indiana17.5¢$41
Iowa15.9¢$37
Kansas15.7¢$37
Kentucky14.3¢$34
Louisiana13.5¢$32
Maine29.6¢$70
Maryland21.8¢$51
Massachusetts29.6¢$70
Michigan23.0¢$54
Minnesota17.5¢$41
Mississippi14.9¢$35
Missouri16.2¢$38
Montana15.1¢$36
Nebraska13.3¢$31
Nevadacheapest13.1¢$31
New Hampshire27.0¢$63
New Jersey24.9¢$59
New Mexico15.1¢$35
New York29.5¢$69
North Carolina14.7¢$35
North Dakota14.1¢$33
Ohio19.2¢$45
Oklahoma14.3¢$34
Oregon16.3¢$38
Pennsylvania21.7¢$51
Rhode Island29.2¢$69
South Carolina15.6¢$37
South Dakota15.4¢$36
Tennessee14.1¢$33
Texas15.9¢$37
Utah13.4¢$31
Vermont24.4¢$57
Virginia17.2¢$40
Washington14.9¢$35
West Virginia15.4¢$36
Wisconsin19.6¢$46
Wyoming15.2¢$36

Certified models closest in efficiency

dishwashers within reach of 235 kWh/yr
ModelkWh/yr$/yr (US avg)
Smeg DW8220235$43
AEG F8242FI234$43
AEG F8242FI-18234$43
AEG F8642FI234$43
AEG F8642SS234$43
Beko DDN25401234$43

Run your own numbers

Your rate, your numbers

Per day
12¢
Per month
$3.59
Per year
$43

235 kWh/yr × 18.3¢/kWh = $43/yr

Prefilled with this model's certified 235 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 Smeg DW8620 use?
ENERGY STAR certifies the Smeg DW8620 at 235 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 Smeg DW8620 cost to run per month?
About $3.59 a month at the U.S. average residential rate (18.3¢/kWh) — 12¢ a day, or $43 a year. Your state's rate moves this up or down; see the table above.
Is the Smeg DW8620 energy efficient?
It uses 2% less electricity than the median certified dishwasher.
What does the Smeg DW8620 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $31 a year in Nevada (13.1¢/kWh) and $124 in Hawaii (52.7¢/kWh).
What does one load cost with the Smeg DW8620?
Roughly 20¢ per cycle at the U.S. average rate, based on the DOE test's 215 cycles a year.

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