SAIDI
139 min per year
Mean outage duration per year (2023)
What This Utility Data Tells You
City of Bristol - (TN) is a municipally-owned utility operating in Tennessee under EIA identifier 2247. It reports service to approximately 34,211 customer accounts and generated about $0.09 billion in annual electric revenue, with a service footprint spanning 20 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 Bristol - (TN) customer experienced 138.7 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). That falls inside the typical 120–180 minute national benchmark, in line with what most U.S. distribution utilities report. The SAIFI figure, which tracks average outage events per customer, came in at 1.79 for the same period, meaning customers statistically saw about 2 distinct interruptions that year.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for City of Bristol - (TN), which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 91.3 to 138.7 minutes, which may reflect either worsening weather exposure or delayed grid modernization.
SAIFI
1.79 interruptions/yr
Events per customer (2023)
Customers
34,211
Customers across Tennessee
SAIDI vs. National Average (180 min) 34.7%
139 minutes per customer per year
Power-out minutes per year (2023)
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 91.3 | 70.4 | 1.645 | 33,843 |
| 2021 | 55.5 | 55.5 | 1.202 | 34,108 |
| 2022 | 111.4 | 111.4 | 1.670 | 34,117 |
| 2023 | 138.7 | - | 1.792 | 34,212 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
City of Bristol - (TN) serves 20 ZIP codes in Tennessee.
3760137615376173761837620376213764337656376593766037662376633766437665376693768637688376943769937857
Frequently Asked Questions
How reliable is City of Bristol - (TN)?
City of Bristol - (TN) had a SAIDI of 138.7 minutes in 2023. Excluding major weather events, this is near the national average.
What type of utility is City of Bristol - (TN)?
City of Bristol - (TN) is classified as a Municipal serving Tennessee.
How many customers does City of Bristol - (TN) serve?
City of Bristol - (TN) serves approximately 34,211 customers in Tennessee.
How has City of Bristol - (TN)'s reliability changed over time?
City of Bristol - (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.
Utility Profile
- Type
- Municipal
- State
- Tennessee
- Customers
- 34,211
- Annual Revenue
- $0.09B
- EIA ID
- 2247
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.
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.