South Portland Electricity Rates

The average South Portland electricity rate today is 16.45¢/kWh at 1,000 kWh usage. The full range spans 13.99¢ to 19.5¢/kWh at 1,000 kWh. With 21 plans on the market, there’s a meaningful difference between the best and worst options. Rates sourced from official marketplace data and refreshed multiple times daily.

75+Providers
5M+Shoppers
20+Years online

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.

Cheapest South Portland electricity plans compared by provider, rate, and term length
ProviderPlanRateAction
C.N. Brown Electricity
C.N. Brown Electricity 12 Months - 14.40¢
12 months Fixed Rate
14.40¢
per kWh at 1,000 kWh
Continue
Ambit Energy
Ambit Energy Maine State Select 12 - 14.50¢
12 months Fixed Rate
14.50¢
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
XOOM Energy
XOOM Energy 12 Months - 15.49¢
12 months Fixed Rate
15.49¢
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
Think Energy LLC
Think Energy 12 Months - 17.20¢
12 months Fixed Rate
17.20¢
per kWh at 1,000 kWh
Continue
Electricity Maine
Electricity Maine 12 Months - 17.49¢
12 months Fixed Rate
17.49¢
per kWh at 1,000 kWh
Continue
Town Square Energy
Town Square Energy 16 Months - 17.57¢
16 months Fixed Rate
17.57¢
per kWh at 1,000 kWh
Continue
Clearview Electric Inc
Clearview Energy 24 Months - 17.99¢
24 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.

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.

Average South Portland Home
1,000 kWh/month
CleanSky Energy 24 Months - 13.99¢
$139.90/mo
estimated South Portland monthly bill
  • CleanSky Energy
  • 13.99¢/kWh at this usage
  • 24-month fixed rate

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.

CleanSky Energy
CEP · South Portland
C.N. Brown Electricity
CEP · South Portland
Ambit Energy
CEP · South Portland
Major Energy
CEP · South Portland
XOOM Energy
CEP · South Portland
SmartEnergy
CEP · South Portland
Think Energy LLC
CEP · South Portland
Electricity Maine
CEP · South Portland
Town Square Energy
CEP · South Portland
Clearview Electric Inc
CEP · South Portland

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.

Common questions about electricity rates, plans, and suppliers in South Portland and the Central Maine Power service area.

What is the cheapest electricity rate in South Portland right now?

Right now, South Portland rates start at 13.99¢/kWh for 1,000 kWh usage, offered by CleanSky Energy (CleanSky Energy 24 Months - 13.99¢). With 21 plans from 10 providers, the average is 16.45¢/kWh. That’s a 15% spread between cheapest and average. All providers are licensed by the Maine Public Utilities Commission (PUC) and deliver power over your local utility’s grid. The cheapest plan saves approximately $25/month at standard usage.

What is the average monthly electric bill in South Portland?

Roughly $165/month for a South Portland home using 1,000 kWh at the average 16.45¢/kWh rate. According to EIA data, Texas homes use about 1,140 kWh/month on average — 14% higher than the national figure. The cheapest plan at 13.99¢ cuts supply costs to $140/month. your local utility’s regulated delivery charges are separate and apply to all plans equally.

Who delivers electricity in South Portland?

All South Portland electricity flows through your local utility’s distribution network. As the ME PUC-regulated utility for this area, your local utility handles power lines, meters, outage repair, and storm response. When you switch providers, your local utility continues delivering your power exactly the same way. Only your supply rate and billing change.

How do I switch electricity providers in South Portland?

Compare plans from 10 ME PUC-certified providers, choose a CEP (Competitive Electricity Provider), and enroll online or by phone. The new supplier coordinates the transition with your local utility automatically. The switch typically completes within 1–2 billing cycles with no service interruption — no technician visit or equipment changes required. Your power stays on throughout the entire process.

Are there renewable energy plans in South Portland?

Several providers serving South Portland include renewable energy in their plans through Renewable Energy Certificates (RECs) sourced from ERCOT-connected wind and solar facilities across Texas. No home equipment changes are needed — your local utility delivers the power identically. Compare plan details on each provider’s Electricity Facts Label (EFL) to see the exact renewable energy percentage included.

How much are electricity delivery charges in South Portland?

your local utility delivery charges in South Portland are regulated by the Maine Public Utilities Commission (PUC) and apply equally to all customers regardless of which CEP (Competitive Electricity Provider) they choose. These charges cover poles, wires, meters, and grid maintenance. Most plan rates displayed on comparison sites already include your local utility’s delivery fees. Check the Electricity Facts Label (EFL) for each plan to see the exact breakdown of supply versus delivery costs.

Should I choose a fixed or variable rate plan in South Portland?

Fixed-rate plans guarantee your supply rate for a set period, typically 3 to 36 months. Variable-rate plans adjust monthly based on ERCOT wholesale market conditions. In South Portland, fixed plans start at 13.99¢/kWh today. For most households, a fixed rate offers better budget predictability and protection against summer price spikes when grid demand peaks and wholesale costs can surge.