South Portland Electricity Rates
There are 27 electricity plans available in South Portland right now, starting at 10.99¢/kWh. The average rate across all 10 providers is 15.67¢/kWh at 1,000 kWh — switching to the cheapest plan saves 30% ($47/month) versus the average rate.
Cheapest Electricity Plans in South Portland
Sorted by price at 1,000 kWh. Plans with bill credits can cost more at other usage levels — check the EFL for the full breakdown.
| Provider | Plan | Rate | Action |
|---|---|---|---|
 |
CleanSky Energy
CleanSky Energy 6 Months - 10.99¢
6 months
Cheapest
|
10.99¢
per kWh at 1,000 kWh
|
Continue |
 |
C.N. Brown Electricity
C.N. Brown Electricity 6 Months - 11.40¢
6 months
Low Rate
|
11.40¢
per kWh at 1,000 kWh
|
Continue |
 |
XOOM Energy
XOOM Energy 12 Months - 14.49¢
12 months
Low Rate
|
14.49¢
per kWh at 1,000 kWh
|
Continue |
 |
Ambit Energy
Ambit Energy 12 Months - 14.50¢
12 months
Fixed Rate
|
14.50¢
per kWh at 1,000 kWh
|
Continue |
 |
North American Power
North American Power 16 Months - 14.79¢
16 months
Fixed Rate
|
14.79¢
per kWh at 1,000 kWh
|
Continue |
 |
Major Energy
Major Energy 15 Months - 14.99¢
15 months
Fixed Rate
|
14.99¢
per kWh at 1,000 kWh
|
Continue |
 |
Clearview Electric Inc
Clearview Energy 6 Months - 15.69¢
6 months
Fixed Rate
|
15.69¢
per kWh at 1,000 kWh
|
Continue |
 |
Think Energy LLC
Think Energy 12 Months - 16.40¢
12 months
Fixed Rate
|
16.40¢
per kWh at 1,000 kWh
|
Continue |
 |
SmartEnergy
SmartEnergy 12 Months - 16.80¢
12 months
Fixed Rate
|
16.80¢
per kWh at 1,000 kWh
|
Continue |
 |
Electricity Maine
Electricity Maine 12 Months - 17.99¢
12 months
Fixed Rate
|
17.99¢
per kWh at 1,000 kWh
|
Continue |
Showing the 10 cheapest South Portland electricity plans based on 1,000 kWh usage.
Best South Portland Electricity Plans by Usage Level
South Portland homes average 550–700 kWh/month. Maine’s cold climate means many homes rely on oil, wood, or propane for heat, keeping electric usage relatively low. Homes with heat pumps or electric baseboard heating will see higher winter consumption.
- CleanSky Energy
- 10.99¢/kWh at this usage
- 6-month fixed rate
Coastal Maine Climate & Energy Costs
South Portland’s coastal location moderates temperatures but brings cold, damp winters. Homes with heat pumps or electric baseboard heating can see usage rise from 400 kWh in summer to 800–1,000 kWh in January.
South Portland Electricity Suppliers
We compare rates from 10 certified Competitive Electricity Providers active in Central Maine Power’s South Portland territory. Every supplier below offers plans to South Portland residents today.
South Portland Business Electricity Rates
South Portland’s economy is driven by the Maine Mall retail corridor, the oil terminal at Portland Harbor, and its role as a Portland suburb with a growing residential and commercial base. Commercial customers access deregulated CEP rates through the Central Maine Power territory.
Business electricity pricing factors in peak demand, load factor, and total volume. A quick quote is the only way to see what rates are available for your specific business profile.
South Portland Electricity FAQ
Common questions about electricity rates, plans, and suppliers in South Portland and the Central Maine Power service area.
How does electricity deregulation work in South Portland?
Deregulation means South Portland residents aren’t stuck with one electricity supplier. your local utility still delivers the power, but the Maine Public Utilities Commission (PUC) certifies multiple suppliers who compete on price and plan terms. You choose the CEP (Competitive Electricity Provider) that fits your budget.
What is the cheapest electricity rate in South Portland right now?
As of today, the lowest South Portland rate is 10.99¢/kWh at 1,000 kWh, offered by CleanSky Energy (CleanSky Energy 6 Months - 10.99¢). Across 10 providers offering 27 plans, rates average 15.67¢/kWh. We update prices multiple times per day.
What is the average monthly electric bill in South Portland?
Based on today’s average rate of 15.67¢/kWh, expect about $157/month for 1,000 kWh of usage. Choosing the cheapest plan at 10.99¢ could bring that down to $110/month.
Who delivers electricity in South Portland?
Electricity in South Portland is delivered by your local utility, who maintains the local grid infrastructure. Your supplier choice doesn’t change who delivers the power — only who supplies it and at what rate.
How do I switch electricity providers in South Portland?
Choose a certified CEP (Competitive Electricity Provider) and enroll. your local utility processes the switch within 1–2 billing cycles. Your electricity stays on throughout — the only change is who supplies your power and what rate you pay.
What happens when my contract expires?
Your supplier is required to notify you before your contract ends. If you don’t act, you’ll typically default to a variable rate. Compare and switch proactively to avoid paying more than necessary.
How do South Portland business electricity rates work?
Business rates in South Portland factor in your demand profile and usage volume. A custom quote is the only way to see real pricing for your specific business. We can help you compare options from certified suppliers.
Who handles power outages in South Portland?
your local utility. Your electricity supplier has no role in outage response — that’s always handled by the delivery company.