SAIDI
139 min per year
Average outage minutes (2023)
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 — a metric called SAIDI (System Average Interruption Duration Index). That sits within the 120–180 minute national benchmark range, indicating performance typical of U.S. distribution utilities. SAIFI — the average number of outage events per customer — was 1.79 for the same period, so customers statistically faced roughly 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. All figures on this page come directly from EIA Form 861, the federal annual electric power industry survey, with service territory ZIPs sourced from OpenEI — you can cross-reference them with your own utility bill or use them when comparing providers before relocating.
SAIDI
139 min per year
Average outage minutes (2023)
SAIFI
1.79 interruptions/yr
Outage frequency (2023)
Customers
34,211
Served in Tennessee
139 minutes per customer per year
Minutes without power per year (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.
City of Bristol - (TN) serves 20 ZIP codes in Tennessee.
City of Bristol - (TN) had a SAIDI of 138.7 minutes in 2023, meaning the average customer experienced about 139 minutes of outages that year. This is near the national average.
City of Bristol - (TN) is classified as a Municipal serving Tennessee. Municipal utilities are owned and operated by local governments.
SAIDI (System Average Interruption Duration Index) measures the average total minutes per year that a customer of City of Bristol - (TN) experiences power outages. A lower SAIDI indicates better reliability. The national average is roughly 120-180 minutes per year, so comparing City of Bristol - (TN)'s SAIDI to that benchmark shows whether this utility is above or below average.
City of Bristol - (TN) serves approximately 34,211 customers in Tennessee. Customer count can affect reliability metrics because larger utilities may face different infrastructure challenges compared to smaller ones.
City of Bristol - (TN) 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.
SAIDI "without major event days" (SAIDI nMED) excludes outages caused by hurricanes, ice storms, and other catastrophic weather events. It better reflects day-to-day infrastructure reliability rather than vulnerability to extreme weather. Both standard SAIDI and SAIDI nMED are shown in the reliability trend table above.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Energy Information Administration (EIA) Form 861. Consult a qualified professional before making decisions based on this data.
Read our methodology — how this data is sourced, computed, and verified.