Cost to Run a Dishwasher (Energy Star) in Connecticut
At Connecticut’s April 2026 average residential rate of 32.24¢/kWh, a typical dishwasher costs about $14.72 per month — or $145 per year.
Uses 1.5 kWh/day · 450 kWh/year.
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Formula: cost = watts × duty × hours/day × days/year × rate / 100 / 1000
About this appliance
An Energy Star dishwasher running one cycle per day. Includes the heating element used during the cycle.
This page uses Connecticut’s residential average electricity price. Connecticut households pay 71% more than the U.S. average of 18.83¢/kWh, so running the same dishwasher in Connecticut costs about $145/year, compared with the U.S. typical of $85/year.
Dishwasher cost across other states
| State | Rate (¢/kWh) | Yearly cost |
|---|---|---|
| North Dakota | 12.35 | |
| Idaho | 12.70 | |
| Nebraska | 13.28 | |
| Utah | 13.29 | |
| Oklahoma | 13.31 | |
| Iowa | 13.86 | |
| Montana | 13.90 | |
| Missouri | 14.01 | |
| Arkansas | 14.16 | |
| Nevada | 14.29 | |
| Washington | 14.36 | |
| Connecticut | 32.24 |
How to lower the cost of your dishwasher in Connecticut
- Match pot size to burner. A 6-inch pot on an 8-inch burner wastes ~40% of the heat.
- Use lids when boiling. Reduces cook time and energy by ~25%.
- For an Energy Star refrigerator, set fridge to 37°F and freezer to 0°F. Lower settings waste energy without preservation benefit.
Gear that helps
Tools and upgrades that pay back fastest for this appliance category. Affiliate links — we may earn a small commission at no cost to you.
- Smart plug with energy monitor — measure exact draw
- Portable induction cooktop — 70% more efficient than electric coil
- Fridge thermometer — verify you’re not overcooling
FAQ
How accurate is this estimate?
The calculation is exact for the given inputs. Real-world variation comes from your utility’s actual rate (which varies by plan and time-of-day), your specific appliance’s efficiency, and your usage pattern. Use the customize box above to plug in your own numbers.
Where does the 32.24¢/kWh come from?
It is the Connecticut residential average from the U.S. Energy Information Administration’s Electric Power Monthly, Table 5.6.A (April 2026). See the methodology page.
How can I lower this cost?
Three high-impact moves: (1) shift heavy usage to off-peak hours if your utility offers time-of-use pricing; (2) switch to a more efficient unit (Energy Star); (3) reduce hours of use. For appliances with always-on standby draw, an inexpensive plug-in Kill-A-Watt meter often pays for itself by revealing surprise loads.