Electricity rates in Rockville, MD
Rockville (66,980 people, Montgomery County) is served by Potomac Electric Power Co.. Homes on Potomac Electric Power Co. pay about 23.12¢/kWh, 10% more than the Maryland average.
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Electric companies serving Rockville
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| Potomac Electric Power Co. | Investor-owned utility | 23.12¢ | $193 | 531K | 104 |
Power outages in Montgomery County right now
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Outage history in Montgomery County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 94 | 175 |
| Days with outages | 23 | 38 |
| Most customers out at once | 15,801 (4%) | 29,030 (7.3%) |
| Worst day | 2024-07-15 | 2025-06-19 |
Outage minutes by month, 2025
More outage time than 2024 (94 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- Derwood 23.1¢
- North Bethesda 23.1¢
- Aspen Hill 23.1¢
- Garrett Park 23.1¢
- Rossmoor 23.1¢
- Leisure World 23.1¢
- Gaithersburg 23.1¢
- North Kensington 23.1¢
- Potomac 23.1¢
- Kensington 23.1¢
ZIP codes: 20847, 20848, 20849, 20850, 20851, 20852, 20853, 20857
Frequently asked questions
What is the electricity rate in Rockville?
Most homes in Rockville get power from Potomac Electric Power Co., where residential customers pay an average of 23.12¢/kWh including all charges. The Maryland average is 21.03¢ and the U.S. average 17.99¢.
What is the average electric bill in Rockville?
About $193 a month, based on 835 kWh a month (the average for Potomac Electric Power Co. customers) at 23.12¢/kWh. Homes with electric heat, pools or EVs pay more.
Who is the electric company in Rockville, MD?
Potomac Electric Power Co. serves Rockville.
How often does the power go out in Rockville?
In 2025, customers in Montgomery County averaged 2 hr 55 min without power. Outages hit 38 days of the year, and the worst day was 2025-06-19, when 29,030 customers (7.3%) were out. Source: ORNL EAGLE-I.