Electric companies in Maryland
13 electric utilities serve Maryland, according to US EIA-861 service-territory filings and live outage feeds. The largest by customers is Baltimore Gas & Electric Co, with about 1,349,559 customers in Maryland (US EIA-861, 2025). About 8% of the customers on file (209,899) buy their electricity from a separate retail supplier; the utility listed here still delivers it and restores outages.
Territory is filed by county, so a county can list several utilities; usually only one serves a given address, and your electric bill names it.
Find yours by ZIP code
Every electric utility in Maryland
Largest first, by customers on its lines in Maryland (US EIA-861, 2025). “Live” is whether MassOutage can see its outages.
| Utility | Type | Customers | Counties | Live | Report an outage |
|---|---|---|---|---|---|
| Baltimore Gas & Electric Co | Investor Owned | 1,349,559 | 9 | Live · county | - |
| Potomac Electric Power Co | Investor Owned | 608,564 | 2 | Live · county | - |
| The Potomac Edison Company | Investor Owned | 293,563 | 7 | Live · county | Outage map ↗ |
| Delmarva Power | Investor Owned | 216,843 | 10 | Live · county | - |
| Southern Maryland Elec Coop Inc | Cooperative | 179,937 | 4 | Live · county | Outage map ↗ |
| Choptank Electric Cooperative, Inc | Cooperative | 57,450 | 9 | No live feed | - |
| Hagerstown Light Department | - | 17,780 | 1 | No live feed | - |
| Easton Utilities Comm | Municipal | 11,316 | 1 | No live feed | - |
| Thurmont Municipal Light Co | - | 2,914 | 1 | No live feed | - |
| Town of Berlin - (MD) | Municipal | 2,756 | 1 | No live feed | - |
| Town of Williamsport - (MD) | - | 1,026 | 1 | No live feed | - |
| A & N Electric Coop | Cooperative | 293 | 1 | Live · county | - |
| Somerset Rural Elec Coop, Inc | - | - | 1 | Live · county | - |
Electric utilities by county
Each county's utilities, largest in the state first. The county name opens its live outage page.
Electric companies in Maryland: FAQ
- How many electric companies serve Maryland?
- 13 electric utilities serve Maryland, according to US EIA-861 service-territory filings and live outage feeds.
- What is the largest electric company in Maryland?
- Baltimore Gas & Electric Co, with about 1,349,559 customers in Maryland (US EIA-861, 2025).
- Which electric company serves my address in Maryland?
- Your electric bill names it. Service territory is filed by county, so MassOutage lists the utilities serving each Maryland county; usually only one of them serves a given address, and a utility can tell you whether it serves yours.
- Who do I call to report a power outage in Maryland?
- Your electric utility. MassOutage has an outage phone line, report page or outage map on file for 2 of the 13 utilities serving Maryland, listed above; for the others, check your bill or the utility's website. For a downed power line, stay at least 35 feet away and call 911.
Live power outages in Maryland →
Data from EIA Form 861 (utility reliability), every source we read. Service territory and customer counts are each utility's own EIA-861 filing; a utility a live outage feed has reported in a county is listed there too.