SAIDI
37 min per year
Mean outage duration per year (2023)
Alpena Power Co is an investor-owned utility operating in Michigan under EIA identifier 392. It reports service to approximately 16,750 customer accounts and generated about $0.04 billion in annual electric revenue, with a service footprint spanning 11 ZIP codes. Because it is investor-owned, the state public utility commission oversees its rate cases and reliability performance rather than a local board.
In 2023, the average Alpena Power Co customer experienced 36.9 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. That is comfortably under the 120–180 minute national benchmark range, a sign of solid grid resilience and quick outage response. The SAIFI figure, which tracks average outage events per customer, came in at 0.46 for the same period, meaning customers statistically saw about 0 distinct interruptions that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 29.2 minutes; the difference from the headline 36.9 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 Alpena Power Co, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI dropped from 213.5 to 36.9 minutes across that span, a direction regulators and prospective customers tend to watch closely. Note: this figure is unusually low compared to typical U.S. utility performance and may reflect an incomplete EIA filing for this year rather than a genuine reliability improvement -- treat with caution and cross-check against Alpena Power Co's other reported years.
SAIDI
37 min per year
Mean outage duration per year (2023)
SAIFI
0.46 interruptions/yr
Events per customer (2023)
Customers
16,750
Served in Michigan
37 min/year per customer
Minutes without power per year (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 213.5 | 89.2 | 1.100 | - |
| 2021 | 243.8 | 120.2 | 1.800 | - |
| 2022 | 159.9 | 92.3 | 1.800 | - |
| 2023 | 36.9 | 29.2 | 0.456 | - |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Alpena Power Co serves 11 ZIP codes in Michigan.
Alpena Power Co had a SAIDI of 36.9 minutes in 2023. Leaving aside major weather events, that figure comes in under the national average, pointing to above-average reliability.
Alpena Power Co is classified as a IOU serving Michigan.
Alpena Power Co serves approximately 16,750 customers in Michigan.
Alpena Power Co 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.