Municipal · Tennessee · EIA 13216
Nashville Electric Service
Municipal · Tennessee · 451K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 1312 minutes/customer.
Reliability verdict
Nashville Electric Service shows near-benchmark chronic reliability in 2023: 144 minutes SAIDI excluding major events (1312 minutes including them) across 451K customers.
- 1312 min
- SAIDI 2023
- 3.03
- SAIFI 2023
- 144 min
- SAIDI ex-MED
- 451K
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: long interruption minutes vs the 911 utility cohort (>258 min tercile cut).
What long-outage Nashville Electric Service filings show
Nashville Electric Service is a municipally-owned utility operating in Tennessee under EIA identifier 13216. It reports service to approximately 451,476 customer accounts and generated about $1.42 billion in annual electric revenue, with a service footprint spanning 70 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 Nashville Electric Service customer experienced 1312.3 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. Excluding major weather events from that total, that sits within the 120–180 minute national benchmark range, indicating performance typical of U.S. distribution utilities. The SAIFI figure, which tracks average outage events per customer, came in at 3.03 for the same period, meaning customers statistically saw about 3 distinct interruptions that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 143.7 minutes; the difference from the headline 1312.3 shows how much of the outage total came from weather rather than everyday grid issues.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Nashville Electric Service, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. Over that window, SAIDI moved from 1854.4 down to 1312.3 minutes, a trend worth noting for anyone weighing capital investment outcomes.
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.
1312 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 Nashville Electric Service from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Nashville Electric Service SAIDI trend
Nashville Electric Service vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
1,312 Higher than most fewer outage minutes than 4% 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
Price vs. reliability
Where Nashville Electric Service sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Nashville Electric Service charges more per customer than 79% of them, and is more reliable (lower SAIDI) than 5% of them, placing it in the quadrant where it pays more but is LESS reliable, a premium price without a reliability payoff. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $3,136/year · Latest SAIDI: 1312.3 minutes/year.
SAIDI 2023 breakdown: 1312.3 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 1854.4 | 102.1 | 2.521 | 406,591 |
| 2021 | 770.0 | 99.3 | 1.820 | 416,477 |
| 2022 | 476.5 | 110.0 | 4.790 | 426,477 |
| 2023 | 1312.3 | 143.7 | 3.028 | 440,331 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Nashville Electric Service serves 70 ZIP codes in Tennessee.
Frequently Asked Questions
How reliable is Nashville Electric Service?
Nashville Electric Service had a SAIDI of 1312.3 minutes in 2023 including major weather events, but 143.7 minutes excluding them (the IEEE-standard day-to-day reliability measure, the difference points to a major storm that year rather than an ongoing problem). Leaving aside major weather events, that figure sits close to the national average.
What type of utility is Nashville Electric Service?
Nashville Electric Service is classified as a Municipal serving Tennessee.
How many customers does Nashville Electric Service serve?
Nashville Electric Service serves approximately 451,476 customers in Tennessee.
How has Nashville Electric Service's reliability changed over time?
Nashville Electric Service 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
- 451,476
- Annual Revenue
- $1.42B
- EIA ID
- 13216
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Nashville Electric Service. Same-state SAIDI neighbors stay in Read-with below; these neighborhoods are nearest other-state utilities with at least 10,000 reported customers.
Similar customer count
Nearest utilities by Form 861 customers (451K here), outside Tennessee.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (1312.3 here), outside Tennessee, excluding the customer-peer set.
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.