SAIDI
41 min per year
Yearly outage minutes, on average (2023)
Lehi City Corporation is a municipally-owned utility operating in Utah under EIA identifier 10879. It reports service to approximately 28,924 customer accounts and generated about $0.05 billion in annual electric revenue, with a service footprint spanning 5 ZIP codes. Being municipally owned, the utility answers to a local board or city council rather than a state commission, and carries a federal income tax exemption.
In 2023, the average Lehi City Corporation customer experienced 41.1 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 0.38 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 41.1 minutes; the difference from the headline 41.1 shows how much of the outage total came from weather rather than everyday grid issues.
With 4 consecutive years of EIA data (2020–2023), Lehi City Corporation's reliability record can be judged on trend rather than one isolated year. SAIDI has improved from 138.9 to 41.1 minutes over that window, a meaningful direction for prospective customers and regulators watching capital investment outcomes.
SAIDI
41 min per year
Yearly outage minutes, on average (2023)
SAIFI
0.38 interruptions/yr
Average interruption count (2023)
Customers
28,924
Customers across Utah
41 min/year per customer
Power-out minutes per year (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 138.9 | 138.9 | 0.738 | 24,564 |
| 2021 | 37.8 | 37.8 | 0.326 | 25,495 |
| 2022 | 202.0 | 43.1 | 0.641 | 27,126 |
| 2023 | 41.1 | 41.1 | 0.384 | 28,704 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Lehi City Corporation serves 5 ZIP codes in Utah.
Lehi City Corporation had a SAIDI of 41.1 minutes in 2023. Leaving aside major weather events, that figure comes in under the national average, pointing to above-average reliability.
Lehi City Corporation is classified as a Municipal serving Utah.
Lehi City Corporation serves approximately 28,924 customers in Utah.
Lehi City Corporation has 4 years of reliability data (2020-2023). SAIDI has remained relatively stable over this period. 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.