Electricity rates — Pennsylvania
A household in Pennsylvania using 1,000 kWh a month pays about $1,355.88 a year on the cheapest of 5 generally available plans — Residential Service from Duquesne Light Co. Rates checked September 2, 2026. A further 6 schedules are published but restricted — means-tested, closed to new customers, or needing particular equipment — and they are priced further down.
Every priced plan, 1,000 kWh/mo
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| Residential Service Add-On Heat Pumptime-of-use · needs a heat pump | $985.84 | −$370.04 | 8.2¢ |
| Residential Service Heatingtime-of-use · needs electric heating | $1,311.48 | −$44.40 | 10.9¢ |
| Residential Heating Service (RH)time-of-use · needs electric heating | $1,344.88 | −$11.00 | 11.2¢ |
| Residential Service✓ cheapestflat rate | $1,355.88 | — | 11.3¢ |
| Residential Service (R)flat rate | $1,533.24 | +$177.36 | 12.8¢ |
| Residential Service Add-On Heat Pumptime-of-use · needs a heat pump | $2,503.14 | +$1,147.26 | 20.9¢ |
| Residential Heating Service (RH)time-of-use · needs electric heating | $2,573.32 | +$1,217.44 | 21.4¢ |
| Residential Service Heatingtime-of-use · needs electric heating | $2,663.88 | +$1,308.00 | 22.2¢ |
| Residential Service (R) - TOUtime-of-use | $2,723.54 | +$1,367.66 | 22.7¢ |
| Residential Service (R)flat rate | $2,761.68 | +$1,405.80 | 23.0¢ |
| Residential Serviceflat rate | $2,847.24 | +$1,491.36 | 23.7¢ |
Cost across usage levels
The cheapest plan at each consumption level, showing whether the ranking holds as usage changes.
- 500 kWh/mo — cheapest $755.88 (Residential Service), dearest $1,501.68, a $745.80 spread
- 1,000 kWh/mo — cheapest $1,355.88 (Residential Service), dearest $2,847.24, a $1,491.36 spread
- 2,000 kWh/mo — cheapest $2,555.76 (Residential Service), dearest $5,538.48, a $2,982.72 spread
What a typical bill costs
At 1,000 kWh a month the 11 priceable plans here run from $1,355.88 on Residential Service to $2,847.24 on Residential Service, with a median of $2,723.54.
The spread is $1,491.36 a year — about $124.28 a month for identical electricity.
Effective rates, bill divided by kilowatt-hours, span 11.3¢ to 23.7¢ per kWh at that usage.
What each provider costs
2 utilities serve customers across Pennsylvania in this data. At 1,000 kWh a month the cheapest of them is Duquesne Light Co at $1,355.88 a year on Residential Service; the dearest is PECO Energy Co at $1,533.24.
That is $177.36 a year between the best each provider offers — and unlike a choice of plan, it is not a choice at all. Which utility serves an address is fixed by the service territory.
Cheapest available plan by provider: Duquesne Light Co $1,355.88; PECO Energy Co $1,533.24.
How the answer changes with usage
Residential Service is cheapest at every level tested — $755.88 a year at 500 kWh a month, $2,555.76 at 2,000 kWh.
The penalty for a poor choice grows with usage: $745.80 a year at 500 kWh against $2,982.72 at 2,000 kWh.
How these plans are structured
Of 11 priceable plans: 7 time-of-use, 4 flat-rate.
Fixed monthly charges run from $11.29 to $13.00.
Who provides these plans
These plans come from 2 utilities: Duquesne Light Co, PECO Energy Co.
The largest saving available here
Moving from Residential Service to Residential Service saves $1,491.36 a year at 1,000 kWh a month, with no change in consumption.
What this does not cover
7 of these plans price by hour. WattClear does not know which hours a household uses, so those estimates carry lower confidence and say so on the figure.
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.