SAIDI
2344 min per year
Mean outage duration per year (2023)
Maui Electric Co Ltd is an investor-owned utility operating in Hawaii under EIA identifier 11843. It reports service to approximately 73,464 customer accounts and generated about $0.44 billion in annual electric revenue, with a service footprint spanning 19 ZIP codes. Investor ownership puts this utility under the regulatory authority of the state public utility commission, which reviews its rate requests and reliability record.
In 2023, the average Maui Electric Co Ltd customer experienced 2344.1 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). Excluding major weather events from that total, that sits within the 120–180 minute national benchmark range, indicating performance typical of U.S. distribution utilities. SAIFI, the average number of outage events per customer, was 2.56 for the same period, so customers statistically faced roughly 3 distinct interruptions that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 213.3 minutes, and the spread against the headline 2344.1 indicates how much weather, versus routine infrastructure, drove the outage total.
Maui Electric Co Ltd has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. SAIDI climbed from 235.6 to 2344.1 minutes over that window, a shift that can point to worsening weather exposure or delayed grid modernization.
SAIDI
2344 min per year
Mean outage duration per year (2023)
SAIFI
2.56 interruptions/yr
Outage frequency (2023)
Customers
73,464
Customers across Hawaii
2344 min/year per customer
Minutes without power per year (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 235.6 | 166.4 | 1.901 | 73,007 |
| 2021 | 495.9 | 156.7 | 1.994 | - |
| 2022 | 490.3 | 134.8 | 2.796 | - |
| 2023 | 2344.1 | 213.3 | 2.562 | - |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Maui Electric Co Ltd serves 19 ZIP codes in Hawaii.
Maui Electric Co Ltd had a SAIDI of 2344.1 minutes in 2023 including major weather events, but 213.3 minutes excluding them (the IEEE-standard measure of day-to-day reliability, the gap reflects a major storm that year, not chronic performance). Excluding major weather events, this is near the national average.
Maui Electric Co Ltd is classified as a IOU serving Hawaii.
Maui Electric Co Ltd serves approximately 73,464 customers in Hawaii.
Maui Electric Co Ltd 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.