What a dishwasher costs to run in Pennsylvania
Pennsylvania homes use 112 kWh a year on a dishwasher. Priced on top of the rest of the bill, that costs $11.16 to $25.20 a year across 11 published Pennsylvania plans — a $14.04 gap. Checked September 2, 2026.
Every priced plan, average
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| Residential Service Add-On Heat Pumptime-of-use · needs a heat pump | $7.79 | −$3.37 | 8.4¢ |
| Residential Service Heatingtime-of-use · needs electric heating | $10.74 | −$0.42 | 11.2¢ |
| Residential Service✓ cheapestflat rate | $11.16 | — | 11.5¢ |
| Residential Heating Service (RH)time-of-use · needs electric heating | $11.32 | +$0.16 | 11.4¢ |
| Residential Service (R)flat rate | $13.08 | +$1.92 | 13.0¢ |
| Residential Service Add-On Heat Pumptime-of-use · needs a heat pump | $22.02 | +$10.86 | 21.1¢ |
| Residential Heating Service (RH)time-of-use · needs electric heating | $22.84 | +$11.68 | 21.6¢ |
| Residential Service Heatingtime-of-use · needs electric heating | $23.46 | +$12.30 | 22.4¢ |
| Residential Service (R) - TOUtime-of-use | $24.19 | +$13.03 | 22.9¢ |
| Residential Service (R)flat rate | $24.60 | +$13.44 | 23.2¢ |
| Residential Serviceflat rate | $25.20 | +$14.04 | 23.9¢ |
Cost across usage levels
The cheapest plan at each consumption level, showing whether the ranking holds as usage changes.
- Lighter use — cheapest $4.08 (Residential Service), dearest $9.36, a $5.28 spread
- Average — cheapest $11.16 (Residential Service), dearest $25.20, a $14.04 spread
- Heavier use — cheapest $15.72 (Residential Service), dearest $35.52, a $19.80 spread
What a dishwasher costs here
Across 11 plans priced in Pennsylvania, a dishwasher adds $11.16 to $25.20 a year — $0.93 to $2.10 a month. The median plan puts a dishwasher at $24.19 a year.
Cheapest for a dishwasher: Residential Service, Duquesne Light Co. Dearest: Residential Service, Duquesne Light Co.
Those 112 kWh are billed at 9.9¢–22.4¢, against a 22.9¢ whole-bill average on the median plan, so on these plans the two rates are close.
What Pennsylvania homes use
EIA's 2020 residential survey found 112 kWh a year across 435 sampled homes that run one, near the national 112 kWh. The middle half spans 42 kWh to 158 kWh, so a dishwasher varies by 116 kWh between one household and another.
The dishwasher's motor, controls and internal heater, including the heated dry cycle where one is used. That average covers homes with a dishwasher — 65% of homes here.
That makes a dishwasher about 1% of the electricity a Pennsylvania home uses. The remaining 10,136 kWh is what a dishwasher is billed on top of, and on a tiered or time-of-use plan that is what sets the rate it meets.
By provider
On each Pennsylvania provider's cheapest plan: Duquesne Light Co, $11.16; PECO Energy Co, $13.08.
PECO Energy Co charges $1.92 a year more than Duquesne Light Co on Residential Service for the same 112 kWh.
Light and heavy use of a dishwasher
A household in the lighter quarter runs a dishwasher for 42 kWh a year and pays $4.08 on the cheapest plan. One in the heavier quarter runs it for 158 kWh and pays $15.72 — $11.64 more for a dishwasher on the same tariff.
Limits
A 2020 survey average for Pennsylvania, not a measurement of any one home, priced against the 11 Pennsylvania tariffs WattClear has ingested — not every plan sold there.
New to these terms? The methodology page explains tiered bands, time-of-use periods and fixed charges, and sets out exactly what the rate engine assumes.
Estimate — your actual bill may differ.
Tariff structures from NREL/OpenEI Utility Rate Database (CC0 1.0), retrieved September 2, 2026.
Location resolved through the US Census Bureau Geocoder (Public domain) at 40.4406, -79.9959.