Running a dishwasher
in Oklahoma
Meter reading
per year
239 kWh certified × 13.38¢ per kWh ÷ 100 — median of 722 listed models
Default: Oklahoma residential average, 13.38¢ per kWh, EIA JUL 2026. Overwrite it with the rate printed on your own bill.
SOURCE·ENERGY STAR certified product data·tariff Oklahoma residential average 13.38¢ — EIA Electric Power Monthly, retrieved 2026-07-28·REVIEWED JUL 2026
$31.98 a year A typical ENERGY STAR certified dishwasher uses 239 kWh a year. At Oklahoma's average residential price of 13.38¢ per kWh, that is $31.98 a year, or $2.66 a month.
The tariff scales the whole rail; the model you buy is what moves the gate along it. The most efficient certified dishwasher on this tariff draws $10.70 a year, the least efficient $32.11 — a standing difference of $21.41 a year for an appliance doing the same job.
How this is worked out
- Take the certified annual consumption for the appliance class off the EPA's ENERGY STAR register — the median of every listed model, not a wattage anyone assumed.
- Take the residential tariff off the EIA's Electric Power Monthly, table 5.6.A. Here that is Oklahoma's residential average, 13.38¢ per kWh.
- Multiply, then divide by 100 to come out of cents. Nothing is rounded before this line.
- Derive the rest of the schedule from that one figure: ÷ 12 monthly, ÷ 365 daily, × 10 for a ten-year life.
- Overwrite the tariff terminal with the rate printed on your own bill and the register re-reads. The certified consumption does not move — that is the half of the sum nobody gets to opinion their way out of.
annual cost ($) = certified kWh per year × tariff ¢ per kWh ÷ 100
Every certified dishwasher, cheapest to run first
The register above reads the median. This is the whole list it was taken from, priced at Oklahoma's tariff. Running cost only — purchase price, capacity and repair record are not in this column, and a cheap-to-run model is not automatically the right buy.
| # | Model | kWh/yr | Cost/yr | vs typical |
|---|---|---|---|---|
| 1 | Loch L1126 · Compact | 80 | $10.70 | saves $21.27 |
| 2 | Fisher & Paykel DD24STX6I1 · Compact | 114 | $15.25 | saves $16.73 |
| 3 | Fisher & Paykel DD24STX6PX1 · Compact | 114 | $15.25 | saves $16.73 |
| 4 | Fisher & Paykel DD24SAX9 · Compact | 134 | $17.93 | saves $14.05 |
| 5 | Fisher & Paykel DD24SCTX9 · Compact | 134 | $17.93 | saves $14.05 |
| 6 | Fisher & Paykel DD24SDFTX9 · Compact | 134 | $17.93 | saves $14.05 |
| 7 | Fisher & Paykel DD24SI9 · Compact | 134 | $17.93 | saves $14.05 |
| 8 | Fisher & Paykel DD24STI9 · Compact | 134 | $17.93 | saves $14.05 |
| 9 | Fisher & Paykel DD24SV2T9 · Compact | 134 | $17.93 | saves $14.05 |
| 10 | BLACK+DECKER BCD6SD · Compact | 155 | $20.74 | saves $11.24 |
| 11 | BLACK+DECKER BCD6W · Compact | 155 | $20.74 | saves $11.24 |
| 12 | Cafe CDD220**W*** · Compact | 155 | $20.74 | saves $11.24 |
| 13 | Comfee CDC22P**** · Compact | 155 | $20.74 | saves $11.24 |
| 14 | Danby DDW621WDB · Compact | 155 | $20.74 | saves $11.24 |
| 15 | Danby DDW631SDB · Compact | 155 | $20.74 | saves $11.24 |
| 16 | Edgestar DWP63** · Compact | 155 | $20.74 | saves $11.24 |
| 17 | Fotile SD1F-S1 · Compact | 155 | $20.74 | saves $11.24 |
| 18 | Fotile SD2F-P5 · Compact | 155 | $20.74 | saves $11.24 |
| 19 | Fotile SD2F-P5L · Compact | 155 | $20.74 | saves $11.24 |
| 20 | GE Profile PDD415**Y*** · Compact | 155 | $20.74 | saves $11.24 |
SOURCE·ENERGY STAR certified product data·722 certified dishwashers on the register, listed by certified consumption·REVIEWED JUL 2026
What the certification spread is worth on this tariff
| Certified models in this category | 722 |
|---|---|
| Lowest certified energy use | 80 kWh/yr — $10.70/yr |
| Median certified energy use | 239 kWh/yr — $31.98/yr |
| Highest certified energy use | 240 kWh/yr — $32.11/yr |
| Difference, best to worst | $21.41 a year |
| …over a 10-year life | $214.08 |
SOURCE·ENERGY STAR certified product data·priced at Oklahoma's residential average, 13.38¢ per kWh·REVIEWED JUL 2026
The same dishwasher on 51 tariffs
| State | Price per kWh | Cost per year | Per month |
|---|---|---|---|
| Hawaii | 52.00¢ | $124.28 | $10.36 |
| California | 33.25¢ | $79.47 | $6.62 |
| New York | 29.93¢ | $71.53 | $5.96 |
| Rhode Island | 29.46¢ | $70.41 | $5.87 |
| Massachusetts | 28.82¢ | $68.88 | $5.74 |
| Maine | 28.63¢ | $68.43 | $5.70 |
| Alaska | 28.23¢ | $67.47 | $5.62 |
| Connecticut | 27.37¢ | $65.41 | $5.45 |
| New Hampshire | 27.33¢ | $65.32 | $5.44 |
| District of Columbia | 25.40¢ | $60.71 | $5.06 |
| Vermont | 24.89¢ | $59.49 | $4.96 |
| Illinois | 23.85¢ | $57.00 | $4.75 |
| New Jersey | 23.27¢ | $55.62 | $4.63 |
| Michigan | 22.01¢ | $52.60 | $4.38 |
| Maryland | 21.77¢ | $52.03 | $4.34 |
| Pennsylvania | 21.55¢ | $51.50 | $4.29 |
| Wisconsin | 19.74¢ | $47.18 | $3.93 |
| Ohio | 19.52¢ | $46.65 | $3.89 |
| Delaware | 19.38¢ | $46.32 | $3.86 |
| Indiana | 18.15¢ | $43.38 | $3.61 |
| Virginia | 17.61¢ | $42.09 | $3.51 |
| Minnesota | 16.95¢ | $40.51 | $3.38 |
| West Virginia | 16.80¢ | $40.15 | $3.35 |
| Alabama | 16.77¢ | $40.08 | $3.34 |
| Texas | 16.44¢ | $39.29 | $3.27 |
| Oregon | 16.27¢ | $38.89 | $3.24 |
| South Carolina | 16.18¢ | $38.67 | $3.22 |
| Colorado | 16.16¢ | $38.62 | $3.22 |
| Mississippi | 16.16¢ | $38.62 | $3.22 |
| Georgia | 15.84¢ | $37.86 | $3.15 |
| South Dakota | 15.73¢ | $37.59 | $3.13 |
| Arizona | 15.23¢ | $36.40 | $3.03 |
| Florida | 15.17¢ | $36.26 | $3.02 |
| Kansas | 15.13¢ | $36.16 | $3.01 |
| North Carolina | 15.09¢ | $36.07 | $3.01 |
| Kentucky | 14.98¢ | $35.80 | $2.98 |
| Washington | 14.95¢ | $35.73 | $2.98 |
| Wyoming | 14.80¢ | $35.37 | $2.95 |
| Montana | 14.67¢ | $35.06 | $2.92 |
| Tennessee | 14.47¢ | $34.58 | $2.88 |
| Arkansas | 14.36¢ | $34.32 | $2.86 |
| Louisiana | 14.15¢ | $33.82 | $2.82 |
| Iowa | 14.14¢ | $33.79 | $2.82 |
| New Mexico | 14.12¢ | $33.75 | $2.81 |
| Missouri | 13.68¢ | $32.70 | $2.72 |
| North Dakota | 13.61¢ | $32.53 | $2.71 |
| Nevada | 13.60¢ | $32.50 | $2.71 |
| Nebraska | 13.59¢ | $32.48 | $2.71 |
| Oklahoma | 13.38¢ | $31.98 | $2.66 |
| Utah | 12.96¢ | $30.97 | $2.58 |
| Idaho | 12.35¢ | $29.52 | $2.46 |
One certified dishwasher at the median consumption of 239 kWh a year, wired to 51 different tariffs. Same appliance, same duty cycle, same certification — only the tariff changes.
SOURCE·US EIA Electric Power Monthly, table 5.6.A·retrieved 2026-07-28·REVIEWED JUL 2026
Schedule notes
How much does it cost to run a dishwasher in Oklahoma?
About $31.98 a year — $2.66 a month — for a typical ENERGY STAR certified dishwasher using 239 kWh annually, at Oklahoma's average residential rate of 13.38¢ per kWh.
How much electricity does a dishwasher use?
Certified models range from 80 to 240 kWh a year, with a median of 239 kWh. That spread means the model you choose changes the running cost by $21.41 a year in Oklahoma.
Is that more or less than the rest of the country?
Oklahoma has the 49th highest residential electricity price of the 51 states and DC, at 13.38¢ against a national average of 19.41¢. The same dishwasher costs $46.39 a year at the national average — $14.41 more than you pay.
Will my bill actually go up by this much?
Only roughly. This is the certified test figure at your state's average price. Your own tariff, how heavily you use the appliance, and its age all move the real number. Older non-certified appliances often use considerably more.
Other circuits on the Oklahoma tariff
Same tariff, same method, one certified median each.
Consumption: US EPA ENERGY STAR certified product data. Tariff: US EIA Electric Power Monthly, retrieved 2026-07-28. Estimates for comparison only. Your actual bill depends on your tariff, how often you run the appliance, and local conditions.
