The Potomac Edison Company electricity rates
Investor-owned utility · Maryland
The Potomac Edison Company is a for-profit, investor-owned utility regulated by the state utility commission, serving 252,583 homes in Maryland. Its residential customers pay an average of 16.47¢/kWh including fixed and delivery charges, 8% less than the U.S. average.
Rate basis: EIA-861M monthly utility data, 12 months ending 2026-07.
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The Potomac Edison Company bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $82.35 | $57.61 |
| 1,000 kWh | $164.70 | $110.22 |
| 1,500 kWh | $247.05 | $162.83 |
| 2,000 kWh | $329.40 | $215.44 |
*Residential Service (R) (effective 2018-01-15, $5.00/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
The Potomac Edison Company residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Residential Service (R) | 2018-01-15 | $5.00 | 10.52¢ |
| Schedule R Residential Servicetime-of-use | 2018-10-01 | $5.36 | 4.3¢ (12am–12am) — summer weekdays |
| Schedule R Residential Servicetime-of-use | 2018-10-01 | $5.36 | 10.7¢ (12am–12am) — summer weekdays |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
The Potomac Edison Company rate history
2015–2025: +48% change in the average residential rate (10.41¢ → 15.44¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2025 | The Potomac Edison Company | Maryland avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 399 | 178 | 266 |
| Outages per customer (SAIFI) | 1.30 | 0.96 | 1.34 |
| Average restoration time (CAIDI) | 5 hr 8 min | — | — |
| Outage minutes excluding major storms | 174 | 79 | 121 |
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across The Potomac Edison Company's counties, customers averaged 4 hr 25 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Garrett | 1,094 | 89 | 5,808 | 2025-06-20 |
| Allegany | 712 | 72 | 9,889 | 2025-04-20 |
| Washington | 632 | 41 | 21,000 | 2025-04-20 |
| Carroll | 380 | 52 | 11,791 | 2025-02-16 |
| Howard | 197 | 28 | 16,396 | 2025-02-16 |
| Montgomery | 175 | 38 | 29,030 | 2025-06-19 |
| Frederick | 173 | 44 | 4,749 | 2025-07-25 |
The Potomac Edison Company service area
The Potomac Edison Company serves 7 counties in Maryland and 105 ZIP codes.
Allegany, Carroll, Frederick, Garrett, Howard, Montgomery, Washington
Cities: Germantown, Frederick, Gaithersburg, Hagerstown, Montgomery Village, Eldersburg, North Potomac, Cumberland, Westminster, Ballenger Creek, Damascus, Clarksburg, Green Valley, Travilah, Halfway, Rosaryville, Mount Airy, Urbana, Frostburg, Linganore, Robinwood, Darnestown, Taneytown, Thurmont, Brunswick, Walkersville, Spring Ridge, Fountainhead-Orchard Hills, Poolesville, Cresaptown, Middletown, Sykesville, La Vale, Clover Hill, Boonsboro, Maugansville, Emmitsburg, Smithsburg, Saint James, Braddock Heights
Programs, smart meters & solar
| Smart meters (AMI) for homes | 0% |
| Time-based rate programs | Time-of-use rates |
| Homes on time-based rates | 2,201 |
| Net-metered solar homes | 8,812 |
| Home batteries paired with solar | 385 |
| Homes in demand response (e.g. thermostat rebates) | 2,926 |
| Residential efficiency incentives paid (2025) | $10,935,468 |
| Residential energy saved by programs | 46,186 MWh |
The Potomac Edison Company at a glance
| Ownership | Investor-owned utility |
| Services | — |
| Commercial rate | 17.21¢/kWh |
| Industrial rate | 18.26¢/kWh |
| Retail revenue (2025) | $629,927,600 |
| Electricity sold (2025) | 4,053,888 MWh |
| Balancing authority | PJM |
| EIA utility ID | 15263 |
| Website | www.psc.state.md.us |
Other utilities in Maryland
Frequently asked questions
What is The Potomac Edison Company's electricity rate?
The Potomac Edison Company residential customers pay an average of 16.47¢ per kWh, all charges included (EIA-861M monthly utility data, 12 months ending 2026-07). That's 22% below the Maryland average of 21.03¢ and 8% below the U.S. average.
What is the average The Potomac Edison Company electric bill?
About $184 a month. The average The Potomac Edison Company home uses 1,114 kWh a month. At 1,000 kWh the bill would be about $165.
How many customers does The Potomac Edison Company have?
The Potomac Edison Company serves 252,583 residential customers and 293,563 customers in total in Maryland, across 7 counties.
How reliable is The Potomac Edison Company?
In 2025, the average The Potomac Edison Company customer was without power for 6 hr 39 min (SAIDI) over 1.30 interruptions (SAIFI), including major storms. Excluding major event days it was 2 hr 54 min. The Maryland average was 2 hr 58 min and the U.S. average 4 hr 26 min.
Does The Potomac Edison Company offer time-of-use rates?
Yes. The OpenEI rate database lists 2 time-of-use residential plans, including Schedule R Residential Service. Running big appliances off-peak can cut their cost. Pick the plan in the calculator above to see by how much.
Does The Potomac Edison Company offer net metering for solar?
The Potomac Edison Company had 8,812 residential net-metered customers in 2025 with 84.3 MW of capacity and 385 solar-paired batteries. Estimate solar savings at this utility's rate.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with The Potomac Edison Company before making decisions.