Municipal · Tennessee · EIA 5961
Town of Erwin - (TN)
Municipal · Tennessee · 9,091 customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 71 minutes/customer.
Reliability verdict
Town of Erwin - (TN) shows above-average chronic reliability in 2023: 71 minutes SAIDI excluding major events across 9,091 customers.
- 71 min
- SAIDI 2023
- 1.54
- SAIFI 2023
- 71 min
- SAIDI ex-MED
- 9,091
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: short interruption minutes vs the 911 utility cohort (≤96 min tercile cut).
What short-outage Town of Erwin - (TN) filings show
Town of Erwin - (TN) is a municipally-owned utility operating in Tennessee under EIA identifier 5961. It reports service to approximately 9,091 customer accounts and generated about $0.02 billion in annual electric revenue, with a service footprint spanning 7 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 Town of Erwin - (TN) customer experienced 71.0 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). That keeps this utility below the typical 120–180 minute national benchmark, consistent with a well-hardened distribution system and fast restoration crews. The SAIFI figure, which tracks average outage events per customer, came in at 1.54 for the same period, meaning customers statistically saw about 2 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 71.0 minutes, the gap between that figure and the headline 71.0 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Town of Erwin - (TN), which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI dropped from 118.0 to 71.0 minutes across that span, a direction regulators and prospective customers tend to watch closely.
Based on this utility's own EIA Form 861 reliability record -- baseline (major-event- excluded) outage duration, total outage duration, and outage frequency -- each benchmarked against every reporting utility nationwide. Not a measure of electricity rates or customer service, which this portal does not track.
71 minutes per customer per year
Annual minutes without electric service (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Town of Erwin - (TN) from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Town of Erwin - (TN) SAIDI trend
Town of Erwin - (TN) vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
71 Among the lowest fewer outage minutes than 75% of 911 utilities
Utilities nationwide, banded by latest reported SAIDI (minutes)
Each bar is a band; taller bars hold more utilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source U.S. EIA Form 861 reliability filings · August 2026
SAIDI 2023 breakdown: 71.0 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI |
|---|---|---|---|
| 2020 | 118.0 | 118.0 | 1.940 |
| 2021 | 62.1 | 62.1 | 1.680 |
| 2022 | 117.0 | 101.0 | 1.900 |
| 2023 | 71.0 | 71.0 | 1.540 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Town of Erwin - (TN) serves 7 ZIP codes in Tennessee.
Frequently Asked Questions
How reliable is Town of Erwin - (TN)?
Town of Erwin - (TN) had a SAIDI of 71.0 minutes in 2023. Leaving aside major weather events, that figure comes in under the national average, pointing to above-average reliability.
What type of utility is Town of Erwin - (TN)?
Town of Erwin - (TN) is classified as a Municipal serving Tennessee.
How many customers does Town of Erwin - (TN) serve?
Town of Erwin - (TN) serves approximately 9,091 customers in Tennessee.
How has Town of Erwin - (TN)'s reliability changed over time?
Town of Erwin - (TN) 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.
Utility Profile
- Type
- Municipal
- State
- Tennessee
- Customers
- 9,091
- Annual Revenue
- $0.02B
- EIA ID
- 5961
Explore
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 · methodology.