State profile · ME
Maine electricity rates
26 residential tariffs from 7 utilities. Across the 6 filed since 2020 that can be fairly compared, the median costs $0.2815 per kWh at 1,000 kWh a month once fixed charges are included — the cheapest $0.1599, the most expensive $0.3137.
- 6 comparable tariffs: $0.1599 to $0.3137
- Maine median $0.2815
- US median $0.1658
Rate structures in Maine
Lowest effective rates at 1,000 kWh/month
Ranked across tariffs filed since 2020: 8 here, 31% of those on file. Older filings are excluded because they are systematically below what utilities now charge. Of the recent ones, 2 are left out because they price only part of a bill (delivery without the electricity itself, or a single appliance), are open only to some households (such as low-income or electric-vehicle rates), or carry a suspected data error. See methodology. Effective rate includes fixed charges, and availability restrictions may apply.
| Utility | Tariff | Structure | Filed | $/kWh | Annual |
|---|---|---|---|---|---|
| Central Maine Power Co | A Residential Standard Offer Service | Tiered | 2026 | $0.1599 | $1,918.32 |
| Central Maine Power Co | A-TOU-OPTS Residential Service - Optional Time-Of-Use (Super Saver) | Time-of-use | 2022 | $0.2312 | $2,774.51 |
| Bangor Hydro-Electric Co | Rate A Residential Service | Flat | 2025 | $0.2760 | $3,311.82 |
| Central Maine Power Co | A Residential Standard Offer Service (Bundled) | Tiered | 2026 | $0.2871 | $3,444.84 |
| Central Maine Power Co | A-TOU Residential Service Time-of-Use | Time-of-use | 2026 | $0.3004 | $3,604.51 |
| Bangor Hydro-Electric Co | Rate A-4 Residential Service - Time of Use | Time-of-use | 2026 | $0.3137 | $3,763.97 |
Not a 1,000 kWh household?
Price every Maine tariff against the usage on your own bill.
Guides to these rates
All guides-
Your utility probably offers more than one rate
At 104 utilities with more than one current residential tariff open to everyone, the cheapest option beat the middle one by a median $71 a year at 1,000 kWh a month — and by more than $250 at 21 of them.
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When is electricity most expensive? It depends on your utility
Across 95 utilities with time-of-use rates we found 49 different weekday peak windows. Nearly all include 5 to 6 pm; little else is shared.
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Does each extra kWh cost more? It depends where you live
Of 84 utilities with tiered residential rates, 43 charge more per kWh as usage rises, 23 charge less, and 11 do both: rising in summer, falling in winter.
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Does electricity cost more in summer? At about half of utilities, yes
Of 174 utilities, 82 charge more for the same 1,000 kWh in July than in January, typically about $12 a month. 19 charge more in winter.
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What utilities charged for electricity in 2025
Across 1,199 utilities, the average residential price rose a median 4.1% from 2024 to 2025. At 137 it rose 10% or more; at 227 it fell.