Editor: Katerine G., Editor & Data Researcher · Research & publishing: Electric Consumer Editorial Team · Data retrieved · Sources named on this page: EIA-861, EIA retail sales · How we got these numbers · Report an error
Roughly 603,429 Maryland accounts belong to Potomac Electric Power Co, classed by EIA as investor owned; the residential count is 553,607. Its home price moved +54.1% from 2015 to 2024, 24.9 points faster than Maryland.
At 828 kWh a month a Potomac Electric Power Co home pays about $155 in energy: 18.74 ¢/kWh, 4.9% above the Maryland average of 17.86 ¢.
Its home price moved +54.1% from 2015 to 2024, 24.9 points faster than Maryland.
The record that sets Potomac Electric Power Co apart is the path of its home price: 12.16 ¢ in 2015, 18.73 ¢ in 2024. That is +54.1%, while the Maryland average went +29.2%, so this utility climbed faster by 24.9 points.
Among Maryland utilities with 20,000+ homes it stood 3rd cheapest of 5 in 2015 and is 5th of 5 in 2024, so it fell down the list.
| Potomac Electric Power Co, 2024 | Home | Business | Bill | SAIDI |
|---|---|---|---|---|
| Potomac Electric Power Co | 18.74 ¢/kWh | 7.29 ¢/kWh | $155at 828 kWh | 46 minSAIDI |
| Maryland average against this company, which is 5 of 5 on price | -0.88 ¢/kWhcompany 4.9% above | +5.67 ¢/kWhcompany 43.7% below | -$7a month at 828 kWh | +44 mincompany 44 below |
| Choptank Electric Cooperative, IncLowest in this table | 16.46 ¢/kWhcompany 13.9% above | 15.29 ¢/kWhcompany 52.3% below | $13619 less than company | 120 mincompany 74 below |
No 2025 early-release row for Potomac Electric Power Co; 2024 stays the latest year.
No 2025 line exists yet for Potomac Electric Power Co, so 18.74 ¢/kWh and a SAIDI of 46 minutes (2024, 553,607 homes) are the latest figures.
Potomac Electric Power Co serves 553,607 homes in Maryland. At 828 kWh a month that is about 195 kg of CO₂, or 2,344 kg a year, at the Maryland plant rate, state generation and not this utility: Maryland generation mix.
12.16 ¢ in 2015, 18.74 ¢ in 2024 (+54.1%); Maryland 13.82 to 17.86 ¢.
| Year | Potomac Electric Power Co | Gap to Maryland residential | Gap to U.S. residential |
|---|---|---|---|
| 2015 | 12.16 | -1.66 | -0.49 |
| 2016 | 12.73 | -1.50 | +0.18 |
| 2017 | 12.93 | -1.03 | +0.04 |
| 2018 | 13.09 | -0.21 | +0.22 |
| 2019 | 13.20 | +0.08 | +0.19 |
| 2020 | 13.26 | +0.25 | +0.11 |
| 2021 | 12.79 | -0.33 | -0.87 |
| 2022 | 14.13 | -0.33 | -0.91 |
| 2023 | 16.92 | +0.32 | +0.92 |
| 2024 | 18.73 | +0.87 | +2.25 |
10 rows from EIA retail sales.
CSV113 min in 2015, 46 in 2024.
| Year | Potomac Electric Power, no major events | Potomac Electric Power, all events |
|---|---|---|
| 2015 | 113 | 113 |
| 2016 | 105 | 105 |
| 2017 | 67 | 67 |
| 2018 | 62 | 189 |
| 2019 | 60 | 71 |
| 2020 | 52 | 62 |
| 2021 | 56 | 75 |
| 2022 | 55 | 152 |
| 2023 | 45 | 102 |
| 2024 | 46 | 65 |
10 rows from EIA-861 survey.
CSV46.4 min, 0.47x the median reporter, rank 152 of 673.
Potomac Electric Power Co, Reliability: EIA-861 survey.
CSVPotomac Electric Power Co billed homes 12.16 ¢/kWh in 2015 and 18.73 ¢ in 2024, +54.1% in all, and outpaced the Maryland average (+29.2%) by 24.9 points. Full-service customers alone pay 20.08 ¢ per EIA, against 18.73 ¢ for all rows: buyers of energy elsewhere pay Potomac Electric Power Co for delivery only. Potomac Electric Power Co's sharpest move came in 2023, +19.7%. The latest year is the high at 18.73 ¢; the low was 12.16 ¢ (2015). 2024: +10.7% here, +7.6% for the Maryland average. SAIDI at Potomac Electric Power Co (major events excluded) fell from 113 minutes in 2015 to 46 in 2024, -59%; best year 2023 at 45. Potomac Electric Power Co filed SAIDI under the national median in 8 of 10 years; its 2024 figure was 46 minutes, -53 from that year's median. 2018: 189 minutes with major events, 62 without, the widest gap of any year.
A 4.9% premium to Maryland, partly matched by a 46-minute outage figure that beats the national median.
Home accounts at Potomac Electric Power Co went from 496,347 in 2015 to 553,607 in 2024, +11.5%. Business customers paid 0.39 times the home price in 2024 (7.29 against 18.73 ¢); the ratio was 0.45 in 2015. SAIFI went from 1.09 in 2015 to 0.51 in 2024, between 0.51 and 1.09.
Potomac Electric Power Co customers lost power for 46 minutes in 2024, down from 136 in 2013 (−66%). Its best year was 2023 (45 min), its worst 2013 (136 min), across 12 filed years. Against a Maryland median of 67 minutes in 2024, Potomac Electric Power Co was below the middle.
Corrected for inflation, a Potomac Electric Power Co home paid 19.23 ¢/kWh in 2024 against 15.67 ¢ in 2013, +22.7%; the bill itself went 11.34 ¢ to 18.73 ¢ (+65.3%). A home using 1,000 kWh a month paid $1,880 for the year at the 2013 real price and $2,307 at the 2024 price. Place on home price: 6th cheapest of 9 in 2013, 10th of 11 in 2024 among Maryland utilities with 1,000+ homes.
Potomac Electric Power Co at 46 min in 2024 and the Maryland median at 67.
Potomac Electric Power Co: 19.23 ¢ in 2025 dollars (solid) and 18.73 ¢ as billed (dashed) in 2024.
| Year, Potomac Electric P | ¢ billed | ¢ in 2025 $ | Price place, Potomac Electr | SAIDI min | SAIFI | SAIDI place, Potomac Electr | Maryland median SAIDI |
|---|---|---|---|---|---|---|---|
| 2013 | 11.34 | 15.67 | 6 of 9 | 136 | 1.43 | 3 of 4 | 117 |
| 2014 | 11.74 | 15.96 | 7 of 10 | 99 | 1.19 | 2 of 5 | 120 |
| 2015 | 12.16 | 16.51 | 7 of 10 | 113 | 1.09 | 5 of 5 | 109 |
| 2016 | 12.73 | 17.08 | 8 of 11 | 105 | 1.06 | 3 of 5 | 105 |
| 2017 | 12.93 | 16.98 | 8 of 11 | 67 | 0.77 | 1 of 5 | 93 |
| 2018 | 13.09 | 16.79 | 7 of 11 | 62 | 0.81 | 1 of 5 | 101 |
| 2019 | 13.20 | 16.62 | 9 of 14 | 60 | 0.74 | 1 of 6 | 105 |
| 2020 | 13.26 | 16.50 | 7 of 12 | 52 | 0.63 | 1 of 5 | 78 |
| 2021 | 12.79 | 15.20 | 6 of 11 | 56 | 0.58 | 1 of 6 | 88 |
| 2022 | 14.13 | 15.54 | 7 of 11 | 55 | 0.67 | 1 of 6 | 99 |
| 2023 | 16.92 | 17.88 | 9 of 11 | 45 | 0.51 | 2 of 7 | 60 |
| 2024 | 18.73 | 19.23 | 10 of 11 | 46 | 0.51 | 2 of 7 | 67 |
Potomac Electric Power C, EIA utility 15270: EIA-861, CPI-U.
CSV| Potomac Electric Power Co sector | Accounts | Rate ¢/kWh | Gap to Maryland ¢/kWh |
|---|---|---|---|
| Residential | 553,607 | 18.74 | +0.88 |
| Commercial | 49,811 | 7.29 | -5.67 |
| Year | Home accounts, Potomac Electric Power | Home ¢ | Business ¢ | Ratio | SAIDI | SAIFI |
|---|---|---|---|---|---|---|
| 2015 | 496,347 | 12.16 | 5.45 | 0.45 | 113 | 1.09 |
| 2016 | 513,844 | 12.73 | 5.69 | 0.45 | 105 | 1.06 |
| 2017 | 520,204 | 12.93 | 5.83 | 0.45 | 67 | 0.77 |
| 2018 | 525,580 | 13.09 | 5.88 | 0.45 | 62 | 0.81 |
| 2019 | 530,540 | 13.20 | 5.87 | 0.44 | 60 | 0.74 |
| 2020 | 534,739 | 13.26 | 5.74 | 0.43 | 52 | 0.63 |
| 2021 | 539,381 | 12.79 | 6.15 | 0.48 | 56 | 0.58 |
| 2022 | 543,883 | 14.13 | 7.78 | 0.55 | 55 | 0.67 |
| 2023 | 547,713 | 16.92 | 7.40 | 0.44 | 45 | 0.51 |
| 2024 | 553,607 | 18.73 | 7.29 | 0.39 | 46 | 0.51 |
| Utility near Potomac Electric Power Co on price | SAIDI min, gap to Potomac Electric Power Co | Home ¢, gap to Potomac Electric Power Co | Gap % to Potomac Electric Power Co | Accounts, Potomac Electric Power Co = 1 |
|---|---|---|---|---|
| 2. Southern Maryland Elec Coop Inc | +67 | -4.00 | -21.4% | 0.29 |
| 3. Baltimore Gas & Electric Co | +20 | -2.62 | -14.0% | 2.23 |
| 4. Choptank Electric Cooperative, Inc | +74 | -2.28 | -12.2% | 0.09 |
| 5. Potomac Electric Power Co (this utility) | 46 | 18.74 | - | 1.00 |
| Class at Potomac Electric Power Co | Accounts | Of Potomac Electric Power Co accounts | Of Potomac Electric Power Co MWh sold | kWh a year per Potomac Electric Power Co account |
|---|---|---|---|---|
| Residential | 553,607 | 91.7% | 41.0% | 9,934 |
| Commercial | 49,811 | 8.3% | 55.0% | 147,915 |
| Industrial and other | 9 | 0.00% | 4.0% | 59,808,778 |
| Potomac Electric Power Co and its neighbours on price | SAIDI min, gap to Potomac Electric Power Co | Home ¢, gap to Potomac Electric Power Co | Accounts, Potomac Electric Power Co = 1 |
|---|---|---|---|
| 1. Commonwealth Edison Co (IL) | -11 | -5.34 | 6.85 |
| 2. PECO Energy Co (PA) | +14 | -3.99 | 2.83 |
| 3. Baltimore Gas & Electric Co (MD) | +20 | -2.62 | 2.23 |
| 4. Delmarva Power (DE) | +22 | -2.36 | 0.56 |
| 5. Potomac Electric Power Co (MD, this utility) | 46 | 18.74 | 1.00 |
| 6. Atlantic City Electric Co (NJ) | +4 | +3.84 | 0.95 |
| Measure | Potomac Electric Power Co | Maryland context | Potomac Electric Power Co detail |
|---|---|---|---|
| Potomac Electric Power Co home meters on AMI | 99.7% | Maryland 86.5% | 555,008 of 556,425 meters |
| Homes with daily digital access | 0 | Maryland figure not published | 0% of the 553,607 home accounts |
| Time-of-use rate for Potomac Electric Power Co homes | Not on file | 2 of 11 Maryland utilities offer one | 395,081 homes on dynamic pricing, 71.36% of 553,607 |
| Net-metered installations | 42,918 | 98% residential | 75.8 homes per 1,000 accounts, 8.6 kW average |
| kWh | Share of a 828 kWh month | Cost a month at 18.74 ¢ | vs U.S. | Cost a year |
|---|---|---|---|---|
| 250 | 30% | $46.84 | +$5.64 | $562 |
| 500 | 60% | $93.68 | +$11.28 | $1,124 |
| 750 | 91% | $140.51 | +$16.91 | $1,686 |
| 1,000 | 121% | $187.35 | +$22.55 | $2,248 |
| 1,500 | 181% | $281.03 | +$33.83 | $3,372 |
| 2,000 | 242% | $374.70 | +$45.10 | $4,496 |
| Measure, Potomac Electric Pow | No events | All events | Converted |
|---|---|---|---|
| SAIDI minutes | 46.4 | 65.5 | 0.77 h |
| SAIFI interruptions | 0.508 | 0.594 | 1.97 yr apart |
| CAIDI minutes | 91.4 | 110.2 | 1.52 h |
2 Maryland counties plus 1 other state, region RFC:
Maryland other states: 3 of 3 counties of Potomac Electric Power Co drawn
Potomac Electric Power Co: 3 counties listed by EIA-861, Census 2023 outlines.
CSV603,429 accounts in 2024: residential 553,607, commercial 49,811, industrial 9.
In 2024 homes paid 18.74 cents; against the Maryland average that is +4.9%.
SAIDI 46.4 min and SAIFI 0.51 a year, major events excluded; ratio to the national median 0.47, CAIDI 91 min.
42,918 installations with 368.1 MW, of which residential installations number 41,951.
828 kWh at 18.74 cents comes to about $155, energy only.
Rank 5 of 5 in Maryland on price, +4.9% against the state average; 4 charge less than 18.74 ¢.
Homes take 41.0% of 13,405,796 MWh, commercial accounts 55.0%, industrial and other 4.0%; the 49,811 commercial accounts use 147,915 kWh each, 14.9 times a home.
555,008 of 556,425 home meters are AMI, 99.7%. Potomac Electric Power Co reports no home time-of-use rate; 2 of 11 Maryland filers do.
3rd cheapest of 5 in 2015, 5th of 5 in 2024; its price rose 54.1% while Maryland rose 29.2%.
Place 5 of 6 on home price at 18.74 ¢ (Exelon group); median 16.24 ¢, cheapest member 13.39 ¢.
Potomac Electric Power Co has no early-release row; 2024 stands at 18.74 cents and 46 SAIDI minutes.
Home prices nearest to Potomac Electric Power Co at 18.74 ¢/kWh in 2024, among companies with a page here, any state.
13 home plan records, energy charges: 1.1 to 21.4 ¢/kWh.
Who offers time-of-use and tiered rates (17 Apr 2026 snapshot).