Power Outages in Calvert County, MD
Baltimore Gas & Electric Co and Southern Maryland Elec Coop Inc publish only a system-wide total, not county figures. In 2025, the average customer here lost power for about 5.2 hours.
Calvert County, MD is served by 2 tracked utilities.
Cite this data
- URL
- https://massoutage.com/maryland/calvert-county
- As of
- Not available
- Publisher
- MassOutage
MassOutage, "Power Outages in Calvert County, MD". https://massoutage.com/maryland/calvert-county
Baltimore Gas & Electric Co and Southern Maryland Elec Coop Inc publish no county-level figures.
0.0%of this county's ~71,146 customers are served by utilities with a county-level live feed.
System-wide total only, no county split: Baltimore Gas & Electric Co, Southern Maryland Elec Coop Inc.
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Baltimore Gas & Electric Co | Live · total only | not by county | - | - | - | - | - | - |
| Southern Maryland Elec Coop Inc | Live · total only | not by county | - | - | - | - | - | - |
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in Calvert Countywho rely on electricity-dependent medical equipment (ventilators, oxygen concentrators, home dialysis, powered wheelchairs, and more). HHS reports counts of 1–10 as “≤11”. Medicare only, so the full at-risk population is larger.
By ZIP code (11)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 20678 | 127 | ≤11 | 88 | ≤11 |
| 20657 | 123 | ≤11 | 94 | ≤11 |
| 20639 | 117 | ≤11 | 71 | ≤11 |
| 20732 | 62 | ≤11 | 42 | 0 |
| 20736 | 56 | ≤11 | 42 | ≤11 |
| 20685 | 52 | ≤11 | 37 | 0 |
| 20688 | 36 | 0 | 28 | 0 |
| 20754 | 35 | 0 | 23 | 0 |
| 20714 | 30 | 0 | 19 | 0 |
| 20676 | 25 | 0 | 16 | 0 |
| 20689 | ≤11 | 0 | ≤11 | 0 |
Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.
Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for Calvert County or any town and utility in it.
No active NWS alerts for Calvert County right now.
Calvert County has been under 35 National Weather Service alerts recently, most recently a Severe Thunderstorm Watch on October 16, 2026.
- Coastal Flood Advisory ×26
- Severe Thunderstorm Watch ×6
- Special Weather Statement ×3
Latest Calvert County, MD outage updates
A running log of how this outage has changed, updated automatically as utilities report in.
- RESOLVED
Power restored after 1h 48m
- IMPROVING
Improving: down to 821 customers out
- OUTAGE BEGAN
Outage began: 2,265 customers out (5.4% of the county)
Hardest-hit cities in Calvert County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Calvert County went about 5.2 hours without power. Peak simultaneous outage on record reached 12,581 customers.
The US EIA reports Maryland utilities averaged 3.1 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 5.2 hrs.
Worst year here was 2022 (peak 12,581 customers out) · decade average 4.1 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 659 | 5,860 | 2.0 |
| 2016 | 679 | 2,802 | 1.9 |
| 2017 | 768 | 3,836 | 1.9 |
| 2018 | 770 | 5,613 | 6.5 |
| 2019 | 720 | 1,971 | 1.8 |
| 2020 | 687 | 11,675 | 6.6 |
| 2021 | 674 | 8,069 | 3.2 |
| 2022 | 702 | 12,581 | 9.5 |
| 2023 | 660 | 7,592 | 2.7 |
| 2024 | 720 | 4,044 | 3.4 |
| 2025 | 701 | 8,498 | 5.2 |
Cost of power in Calvert County
ENERGY & AI DEMAND →Estimated residential electricity price for Calvert County, customer-weighted across the utilities serving it (US EIA, 2025). Retail prices aren't published at the county level; this is a derived estimate.
- Baltimore Gas & Electric Co20.2¢1,143,710 cust
- Southern Maryland Elec Coop Inc16.4¢162,860 cust
Weighted by each utility's residential customer count (utilities report customers at the state level; a per-county share isn't published). Rising retail prices track a national demand surge; see energy & the data-center boom.
Relatively Moderate hurricanes exposure · 4.1 hrs/yr of outages over the last decade.
Power outages in Calvert County: FAQ
- How often does Calvert County, MD lose power?
- Based on EAGLE-I records, Calvert County, MD logged 701 distinct outage events in 2025, averaging about 5.2 hours without power per customer over the year.
- What was the worst power outage in Calvert County, MD?
- The largest tracked outage peaked at 12,581 customers without power, beginning January 3, 2022 and lasting about 3d 17h.
- Is there a power outage in Calvert County, MD right now?
- No major outage is currently reported for Calvert County, MD. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Calvert County, MD?
- Tracked electric providers include Baltimore Gas & Electric Co, Southern Maryland Elec Coop Inc.
Outages are tracked at the county level; these ZIP codes fall within Calvert County.
20615, 20629, 20639, 20657, 20676, 20678, 20685, 20688, 20689, 20732, 20736, 20754
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Baltimore Gas & Electric Co | 2.9 hrs | Live · total only | - |
| Southern Maryland Elec Coop Inc | 2.9 hrs | Live · total only |
Data from DOE/ORNL ODIN, DOE EAGLE-I, EIA Form 861 (utility reliability), EIA electricity retail prices and FEMA National Risk Index, every source we read. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Maryland customers). Machine-readable data: /api/v1/counties/24009 and /api/v1/counties/24009/history.