SAIDI
29 min per year
Mean outage duration per year (2023)
City of Lewisburg - (TN) is a municipally-owned utility operating in Tennessee under EIA identifier 10960. It reports service to approximately 6,503 customer accounts and generated about $0.03 billion in annual electric revenue, with a service footprint spanning 1 ZIP code. Municipal ownership means a local board or city council typically oversees this utility, and it is exempt from federal income tax.
In 2023, the average City of Lewisburg - (TN) customer experienced 28.6 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). Excluding major weather events from that total, that places this utility well below the 120–180 minute national benchmark, signaling strong grid hardening and fast restoration practices. The SAIFI figure, which tracks average outage events per customer, came in at 0.96 for the same period, meaning customers statistically saw about 1 distinct interruption that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 10.3 minutes, and the spread against the headline 28.6 indicates how much weather, versus routine infrastructure, drove the outage total.
City of Lewisburg - (TN) has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. SAIDI has improved from 49.1 to 28.6 minutes over that window, a meaningful direction for prospective customers and regulators watching capital investment outcomes.
SAIDI
29 min per year
Mean outage duration per year (2023)
SAIFI
0.96 interruptions/yr
Events per customer (2023)
Customers
6,503
Served in Tennessee
29 outage minutes per customer annually
Annual minutes without electric service (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 49.1 | 6.0 | 0.508 | 6,291 |
| 2021 | 47.0 | 9.0 | 0.517 | 6,400 |
| 2022 | 43.9 | 5.6 | 0.635 | 6,500 |
| 2023 | 28.6 | 10.3 | 0.956 | 6,503 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
City of Lewisburg - (TN) serves 1 ZIP code in Tennessee.
City of Lewisburg - (TN) had a SAIDI of 28.6 minutes in 2023 including major weather events, but 10.3 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 below the national average, indicating above-average reliability.
City of Lewisburg - (TN) is classified as a Municipal serving Tennessee.
City of Lewisburg - (TN) serves approximately 6,503 customers in Tennessee.
City of Lewisburg - (TN) 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.