SAIDI
2475 min per year
Average outage minutes (2023)
Versant Power is an investor-owned utility operating in Maine under EIA identifier 1179. It reports service to approximately 117,729 customer accounts and generated about $0.27 billion in annual electric revenue, with a service footprint spanning 112 ZIP codes. As an investor-owned utility, it operates under state public utility commission oversight that reviews rate cases and reliability performance.
In 2023, the average Versant Power customer experienced 2475.0 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. Excluding major weather events from that total, that runs well past the 120–180 minute national benchmark, which can reflect storm-exposed terrain, an aging grid, or slower restoration times. The SAIFI figure, which tracks average outage events per customer, came in at 3.91 for the same period, meaning customers statistically saw about 4 distinct interruptions that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 303.0 minutes; the difference from the headline 2475.0 shows how much of the outage total came from weather rather than everyday grid issues.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Versant Power, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 1602.0 to 2475.0 minutes, which may reflect either worsening weather exposure or delayed grid modernization.
SAIDI
2475 min per year
Average outage minutes (2023)
SAIFI
3.91 interruptions/yr
Outage frequency (2023)
Customers
117,729
Maine service territory
2475 outage minutes per customer annually
Annual minutes without electric service (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 1602.0 | 319.0 | 4.105 | 176,818 |
| 2021 | 306.0 | 218.0 | 2.349 | 179,223 |
| 2022 | 1285.0 | 326.0 | 3.309 | 181,068 |
| 2023 | 2475.0 | 303.0 | 3.913 | 164,775 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Versant Power serves 112 ZIP codes in Maine.
Versant Power had a SAIDI of 2475.0 minutes in 2023 including major weather events, but 303.0 minutes excluding them (the industry-standard measure of routine reliability, so the gap traces back to a major storm that year, not a chronic issue). Excluding major storm impacts, this trails the national average, indicating below-average reliability.
Versant Power is classified as a IOU serving Maine.
Versant Power serves approximately 117,729 customers in Maine.
Versant Power has 4 years of reliability data (2020-2023). SAIDI has held roughly steady across these years. Review the trend table above for year-by-year detail.
Source: U.S. Energy Information Administration Form 861 annual electric power industry survey · ZIP service territory: OpenEI. Disclaimer: informational only, not professional advice. See full disclaimer.
Every figure on PlainUtility is rendered directly from the U.S. Energy Information Administration's Form 861 reliability data, no number is typed in by an editor. This utility's SAIDI/SAIFI figures are rendered directly from EIA Form 861 reliability files. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2020-2023.