Maryland power outages by utility
6 Maryland utilities report outage minutes to EIA. The state median is 90 minutes a year; the range runs from 10 to 159.
Ranking by outage minutes
Maryland, SAIDI without major event days, 2024; lower is better; 6 utilities.
| Rank | Maryland utility | Owner type | Maryland home accounts | SAIDI min | Interruptions (SAIFI) | SAIDI with storms | Maryland storm share | Price ¢/kWh |
|---|---|---|---|---|---|---|---|---|
| 1 | Easton Utilities Comm | Municipal | 8,590 | 10 | 0.23 | 10 | 0% | 13.06 |
| 2 | Potomac Electric Power Co | Investor Owned | 553,607 | 46 | 0.51 | 65 | 29% | 18.74 |
| 3 | Baltimore Gas & Electric Co | Investor Owned | 1,214,100 | 67 | 0.63 | 133 | 50% | 16.12 |
| 4 | Southern Maryland Elec Coop Inc | Cooperative | 160,882 | 114 | 1.13 | 146 | 22% | 14.73 |
| 5 | Choptank Electric Cooperative, Inc | Cooperative | 50,697 | 120 | 1.17 | 144 | 16% | 16.46 |
| 6 | The Potomac Edison Company | Investor Owned | 256,568 | 159 | 1.07 | 168 | 5% | 13.26 |
Maryland outage minutes by owner type
In Maryland, 92% of 2,451,753 home accounts sit with the 6 qualifying utilities out of 7 in the file. Maryland customer-weighted SAIDI is 77 minutes against a median of 90, and 3 of 6 Maryland utilities exceed the U.S. median of 99. Counting major event days adds a median 19% to SAIDI.
| Maryland owner type | Maryland utilities | Maryland home accounts | Maryland median SAIDI | Maryland weighted SAIDI | Maryland median SAIFI | Maryland storm share | Maryland median price ¢/kWh |
|---|---|---|---|---|---|---|---|
| Investor Owned | 3 | 2,024,275 | 67 | 73 | 0.63 | 29% | 16.12 |
| Cooperative | 2 | 211,579 | 117 | 115 | 1.15 | 19% | 15.59 |
| Municipal | 1 | 8,590 | 10 | 10 | 0.23 | 0% | 13.06 |
By owner type, Municipal utilities have the lowest median SAIDI in Maryland (10 minutes, 1 of 6) and Cooperative the highest (117 minutes, 2 of 6).
Maryland utilities that stand out
| Why it stands out | Maryland utility | Maryland owner type | Maryland accounts | Maryland SAIDI min | Maryland SAIDI rank | Maryland SAIFI | Maryland SAIDI with storms | Maryland price ¢/kWh | Maryland price rank |
|---|---|---|---|---|---|---|---|---|---|
| the most reliable | Easton Utilities Comm | Municipal | 8,590 | 10 | 1 of 6 | 0.23 | 10 | 13.06 | 1 of 6 |
| the least reliable | The Potomac Edison Company | Investor Owned | 256,568 | 159 | 6 of 6 | 1.07 | 168 | 13.26 | 2 of 6 |
| the largest | Baltimore Gas & Electric Co | Investor Owned | 1,214,100 | 67 | 3 of 6 | 0.63 | 133 | 16.12 | 4 of 6 |
| the most improved | Potomac Electric Power Co | Investor Owned | 553,607 | 46 | 2 of 6 | 0.51 | 65 | 18.74 | 6 of 6 |
Does a higher price buy fewer outages?
Each dot is one of 6 Maryland utilities.
Maryland, 2024: 6 rows
| Home price, cents per kWh | SAIDI, minutes a year | |
|---|---|---|
| Easton Utilities Comm | 13.06 | 10 |
| Potomac Electric Power Co | 18.74 | 46 |
| Baltimore Gas & Electric Co | 16.12 | 67 |
| Southern Maryland Elec Coop Inc | 14.73 | 114 |
| Choptank Electric Cooperative, Inc | 16.46 | 120 |
| The Potomac Edison Company | 13.26 | 159 |
6 rows from EIA-861 survey.
CSVMaryland utilities, change in their own SAIDI
First to last year each utility reported, best change first.
| Rank | Maryland utility | Maryland years | Maryland SAIDI first | Maryland SAIDI last | Maryland change |
|---|---|---|---|---|---|
| 1 | Potomac Electric Power Co | 2015 to 2024 | 113 | 46 | -59% |
| 2 | Baltimore Gas & Electric Co | 2015 to 2025 | 91 | 65 | -28% |
| 3 | Southern Maryland Elec Coop Inc | 2021 to 2025 | 120 | 118 | -2% |
| 4 | Easton Utilities Comm | 2023 to 2025 | 18 | 21 | +13% |
| 5 | Choptank Electric Cooperative, Inc | 2015 to 2025 | 100 | 121 | +20% |
| 6 | The Potomac Edison Company | 2015 to 2024 | 109 | 159 | +46% |
Analyst note
Storm share stands out in Maryland: a median 19% of SAIDI comes from major event days, rank 36 of 40. Of 6 Maryland utilities with 1,000+ home accounts that report SAIDI, Easton Utilities Comm is lowest at 10 minutes a year and The Potomac Edison Company highest at 159, a 15.2 to 1 spread. The state median is 90 minutes, -9% against the U.S. median reporter. Over each utility's own record, Potomac Electric Power Co improved most (113 to 46 minutes, -59%, 2015 to 2024) and The Potomac Edison Company changed the other way (109 to 159, +46%); 3 of 6 fell. Home price and outage minutes line up at r = -0.18 across 6 Maryland utilities: price tells almost nothing here. That is Maryland's pattern, not a cause.
Questions on Maryland outages
How much do major storms add to Maryland outage time?
A median 19% of SAIDI across the reporters, rank 36 of 40 states.
Which Maryland utility has the fewest outage minutes?
Easton Utilities Comm: 10 minutes a year, SAIDI without major events, 2024.
Which Maryland utility has the most?
The Potomac Edison Company: 159 minutes a year in 2024.
What is the typical SAIDI in Maryland?
The median of 6 reporting utilities is 90 minutes, -9% on the U.S. median reporter.
Do cheaper Maryland utilities have more outages?
Across 6 utilities r = -0.18, so the link is weak.
How much of Maryland outage time comes from storms?
At Baltimore Gas & Electric Co 50% of all-event SAIDI is major event days.
How reliable is the largest Maryland utility?
Baltimore Gas & Electric Co serves 1,214,100 home accounts and reports 67 minutes, rank 3 of 6; weighted by customers the state figure is 77.
Do Maryland co-ops and investor-owned utilities differ?
3 owner types report in Maryland: Municipal 1 utility with 8,590 home accounts, Investor Owned 3 utilities with 2,024,275 home accounts, Cooperative 2 utilities with 211,579 home accounts.
What share of Maryland home accounts do these utilities serve?
92% of 2,451,753 accounts, 6 of 7 utilities; 3 are above the U.S. median of 99 minutes.
More on Maryland
- Maryland state hubprices, map, utilities