SAIDI
122 min per year
Yearly outage minutes, on average (2023)
City of Rolla - (MO) is a municipally-owned utility operating in Missouri under EIA identifier 16259. It reports service to approximately 9,588 customer accounts and generated about $0.03 billion in annual electric revenue, with a service footprint spanning 2 ZIP codes. As a municipal utility, it is typically governed by a local board or city council and is exempt from federal income tax.
In 2023, the average City of Rolla - (MO) customer experienced 122.1 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). Excluding major weather events from that total, that is comfortably under the 120–180 minute national benchmark range, a sign of solid grid resilience and quick outage response. Over the same period, SAIFI (outage events per customer) was 2.46, putting the typical customer at roughly 2 distinct interruptions that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 27.8 minutes; the difference from the headline 122.1 shows how much of the outage total came from weather rather than everyday grid issues.
With 4 consecutive years of EIA data (2020–2023), City of Rolla - (MO)'s reliability record can be judged on trend rather than one isolated year. Over that span, SAIDI rose from 14.4 to 122.1 minutes, possibly reflecting tougher weather years or grid upgrades that have not caught up yet.
SAIDI
122 min per year
Yearly outage minutes, on average (2023)
SAIFI
2.46 interruptions/yr
Events per customer (2023)
Customers
9,588
Customers across Missouri
122 outage minutes per customer annually
Power-out minutes per year (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 14.4 | 14.4 | 0.111 | 9,567 |
| 2021 | 20.7 | 20.7 | 0.230 | 9,554 |
| 2022 | 33.0 | 33.0 | 0.652 | 9,554 |
| 2023 | 122.1 | 27.8 | 2.460 | 9,588 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
City of Rolla - (MO) serves 2 ZIP codes in Missouri.
City of Rolla - (MO) had a SAIDI of 122.1 minutes in 2023 including major weather events, but 27.8 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). Leaving aside major weather events, that figure comes in under the national average, pointing to above-average reliability.
City of Rolla - (MO) is classified as a Municipal serving Missouri.
City of Rolla - (MO) serves approximately 9,588 customers in Missouri.
City of Rolla - (MO) has 4 years of reliability data (2020-2023). This utility's SAIDI has stayed fairly flat over the 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.