Electricity rates in South Portland, ME
South Portland (25,556 people, Cumberland County) is served by Central Maine Power Co.. Homes on Central Maine Power Co. pay about 28.81¢/kWh, 2% less than the Maine average.
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Electric companies serving South Portland
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| Central Maine Power Co. | Investor-owned utility | 28.81¢ | $155 | 538K | 318 |
Power outages in Cumberland County right now
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Outage history in Cumberland County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 2,236 | 206 |
| Days with outages | 86 | 63 |
| Most customers out at once | 105,529 (46.4%) | 13,122 (5.8%) |
| Worst day | 2024-04-04 | 2025-12-19 |
Outage minutes by month, 2025
Less outage time than 2024 (2,236 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- Portland 28.8¢
- South Portland Gardens 28.8¢
- Scarborough 28.8¢
- Falmouth 28.8¢
- Falmouth Foreside 28.8¢
- Westbrook 28.8¢
- West Scarborough 28.8¢
- Gorham 28.8¢
- Cumberland Center 28.8¢
- Old Orchard Beach 28.8¢
ZIP codes: 04106, 04116
Frequently asked questions
What is the electricity rate in South Portland?
Most homes in South Portland get power from Central Maine Power Co., where residential customers pay an average of 28.81¢/kWh including all charges. The Maine average is 29.31¢ and the U.S. average 17.99¢.
What is the average electric bill in South Portland?
About $155 a month, based on 538 kWh a month (the average for Central Maine Power Co. customers) at 28.81¢/kWh. Homes with electric heat, pools or EVs pay more.
Who is the electric company in South Portland, ME?
Central Maine Power Co. serves South Portland.
How often does the power go out in South Portland?
In 2025, customers in Cumberland County averaged 3 hr 26 min without power. Outages hit 63 days of the year, and the worst day was 2025-12-19, when 13,122 customers (5.8%) were out. Source: ORNL EAGLE-I.