How reliable is the power in Maine?
Maine ranks 44th of 45 states without major events and 44th with them (1st = fewest minutes), 145 above the U.S. 129 and 1087 above the U.S. 662. Major events added 1475 minutes, 84% of the with-events total. The figure covers 858,340 customers, 100% of the 844,894 EIA lists for Maine.
Maine with and without major events
minutes without power per customer, 2024, Maine and U.S.
- 274Maine, no major events
- 129U.S., no major events
- 1,749Maine, with major events
- 662U.S., with major events
| Measure | Maine without | Maine with | U.S. without | U.S. with |
|---|---|---|---|---|
| SAIDI, minutes per customer | 274 | 1,749 | 129 | 662 |
| SAIFI, interruptions per customer | 2.14 | 3.64 | 1.06 | 1.53 |
| CAIDI, minutes per interruption | 128 | 481 | 122 | 433 |
| Median utility, SAIDI minutes | 478 | 1,206 | — | — |
Which Maine utilities move the number
Central Maine Power Co serves 79% of the customers in the Maine figure: 86% of lost customer-minutes with major events, 62% without. Without Central Maine Power Co, the weighted figure would be 1197 minutes with major events and 497 without, against 1,749 and 274.
- Central Maine Power Co: 679,726 customers (79%), 215 min without and 1,894 with; 86% of lost minutes with major events, 62% without.
- Versant Power: 165,401 customers (19%), 478 min without and 1,206 with; 13% of lost minutes with major events, 34% without.
- Eastern Maine Electric Coop: 13,213 customers (2%), 737 min without and 1,085 with; 1% of lost minutes with major events, 4% without.
All Maine utilities in the 2024 file
14 utilities in the 2024 EIA-861 files for Maine: 3 follow IEEE 1366, 0 use another method, 11 filed no reliability figures. 3 are listed.
| Central Maine Power Co | Investor Owned | IEEE 1366 | 679,726 | 215 | 1,894 | 1.83 | 3.37 | 89 | 1 of 3 | — |
|---|---|---|---|---|---|---|---|---|---|---|
| Versant Power | Investor Owned | IEEE 1366 | 165,401 | 478 | 1,206 | 3.10 | 4.38 | 60 | 2 of 3 | — |
| Eastern Maine Electric Coop | Cooperative | IEEE 1366 | 13,213 | 737 | 1,085 | 5.98 | 8.00 | 32 | 3 of 3 | — |
Maine utilities with no reliability figures
11 in the sales file, no SAIDI or SAIFI row.
| Utility | Type | Customers |
|---|---|---|
| Houlton Water Company | Municipal | 5,496 |
| Town of Madison - (ME) | Municipal | 2,656 |
| Tesla Inc. | Behind the Meter | 4 |
| Kennebunk Light & Power Dist | Municipal | — |
| Texas Retail Energy, LLC | Not stated | — |
| Calpine Power America LLC | Not stated | — |
| BP Energy Retail LLC | Not stated | — |
| Efficiency Maine Trust | Not stated | — |
| Fox Islands Electric Coop, Inc | Cooperative | — |
| First Point Power, LLC | Not stated | — |
| Constellation NewEnergy, Inc | Not stated | — |
The biggest Maine utilities against the U.S.
- Central Maine Power Co (investor owned, 78% of Maine customers in the file): SAIDI without major events 215 min, 86 above the U.S. 129; with major events 1894 min against 662.
- Versant Power (investor owned, 20% of Maine customers in the file): SAIDI without major events 478 min, 349 above the U.S. 129; with major events 1206 min against 662.
- Eastern Maine Electric Coop (cooperative, 2% of Maine customers in the file): SAIDI without major events 737 min, 608 above the U.S. 129; with major events 1085 min against 662.
- Houlton Water Company (municipal, 1% of Maine customers in the file): no reliability figures filed.
- Town of Madison - (ME) (municipal, 0% of Maine customers in the file): no reliability figures filed.
Maine by type of utility
Among Maine utilities that report under IEEE 1366, investor owned utilities average 267 minutes without major events and cooperative utilities 737.
| Type | Utilities | Customers | SAIDI without | Median utility | SAIDI with |
|---|---|---|---|---|---|
| Investor Owned | 2 | 845,127 | 267 | 347 | 1,759 |
| Cooperative | 1 | 13,213 | 737 | 737 | 1,085 |
Next to Maine in the ranking
Maine report card
Smart meters: 99% of residential meters, 3 utilities (U.S. 92%). Maine time-based rates: 1 of 3 utilities, 0.7% of residential customers enrolled (U.S. 10.6%). Maine efficiency spend: $45.5 per customer (U.S. $124.2). Demand response: 14 W per customer (U.S. 77). Maine net-metered systems: 97.1 per 1,000 customers. Rankings.
Is your Maine utility better or worse than the Maine median?
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- Maine against all states
- Maine utilities among the best and worst
- Maine major outage reports from the Department of Energy
- Maine electricity prices
- Maine help with your bill
3 Maine filings in EIA-861 2024 (retrieved 2026-10-01), 3 ranked utilities. Method and sources.
Questions
How many minutes without power did the average Maine customer have in 2024?
274 minutes without major events and 1749 with them (3 IEEE 1366 utilities, customer-weighted).
Why do the two Maine numbers differ so much?
Major events add 1475 of the 1749 minutes (84%); Central Maine Power Co supplies 86% of the with-events total.
Which Maine utility reported the fewest and the most minutes?
Among 3 utilities with 10,000+ customers: Central Maine Power Co 215 minutes without major events, and Eastern Maine Electric Coop 737.
Which Maine utilities use which method?
3 follow IEEE 1366, 0 use another method, 11 filed no reliability figures.