Municipal · Tennessee · EIA 19266

Tullahoma Board-Public Utils

Municipal · Tennessee · 11K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 69 minutes/customer.

Reliability detail ↓ Tennessee utilities

Reliability verdict

Tullahoma Board-Public Utils shows above-average chronic reliability in 2023: 27 minutes SAIDI excluding major events (69 minutes including them) across 11K customers.

69 min
SAIDI 2023
2.76
SAIFI 2023
27 min
SAIDI ex-MED
11K
Customers

Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.

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Signature read: short interruption minutes vs the 911 utility cohort (≤96 min tercile cut).

What short-outage Tullahoma Board-Public Utils filings show

Tullahoma Board-Public Utils is a municipally-owned utility operating in Tennessee under EIA identifier 19266. It reports service to approximately 11,180 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 Tullahoma Board-Public Utils customer experienced 68.8 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). Excluding major weather events from that total, that keeps this utility below the typical 120–180 minute national benchmark, consistent with a well-hardened distribution system and fast restoration crews. Over the same period, SAIFI (outage events per customer) was 2.76, putting the typical customer at roughly 3 distinct interruptions that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 26.5 minutes, and the spread against the headline 68.8 indicates how much weather, versus routine infrastructure, drove the outage total.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for Tullahoma Board-Public Utils, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. Over that window, SAIDI moved from 73.8 down to 68.8 minutes, a trend worth noting for anyone weighing capital investment outcomes.

C+
Reliability Score
62/100
Tullahoma Board-Public Utils · 3 of 3 dimensions reported

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.

Baseline Reliability A 26.5 min/yr
SAIDI excluding major-event days — day-to-day grid performance
Total Outage Duration B+ 68.8 min/yr
SAIDI including storms and major events — the full-year experience
Outage Frequency F 2.76/yr
SAIFI — average number of interruptions per customer per year
SAIDI vs. national mean (341 min) 9.2%

69 outage minutes per customer annually

Tullahoma Board-Public Utils SAIDI

Annual minutes without electric service (2023)

69 SAIDI69 SAIDINat. avg 341341SAIDI69SAIDI

Excellent

SAIDI by year (2020-2023)

Minutes per customer-year · EIA Form 861

Year-by-year SAIDI for Tullahoma Board-Public Utils from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.

Source: U.S. EIA Form 861 As of August 2026

Tullahoma Board-Public Utils SAIDI trend

0 100 200 300 400 2020 2021 2022 2023 73.8 361.4 40.9 68.8
Year-by-year SAIDI from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.

Tullahoma Board-Public Utils vs the nationwide SAIDI distribution

Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure

69 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

Price vs. reliability

Where Tullahoma Board-Public Utils sits on price vs. reliability

Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Tullahoma Board-Public Utils charges more per customer than 51% of them, and is more reliable (lower SAIDI) than 78% of them, placing it in the quadrant where it pays more and is more reliable. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.

Tullahoma Board-Public Utils vs. a 40-utility national peer sample, price percentile vs. reliability percentile. Scatter plot of 41 data points (bubble-sized by third dimension). 050100150 050100150 Best valuePays for itCheap + riskyWorst deal Price percentile Reliability percentile Point, Price percentile: 0 · Reliability percentile: 30Point, Price percentile: 3 · Reliability percentile: 40Point, Price percentile: 5 · Reliability percentile: 32Point, Price percentile: 8 · Reliability percentile: 82Point, Price percentile: 10 · Reliability percentile: 45Point, Price percentile: 13 · Reliability percentile: 90Point, Price percentile: 15 · Reliability percentile: 12Point, Price percentile: 18 · Reliability percentile: 25Point, Price percentile: 20 · Reliability percentile: 17Point, Price percentile: 23 · Reliability percentile: 77Point, Price percentile: 25 · Reliability percentile: 10Point, Price percentile: 28 · Reliability percentile: 50Point, Price percentile: 30 · Reliability percentile: 60Point, Price percentile: 33 · Reliability percentile: 57Point, Price percentile: 35 · Reliability percentile: 7Point, Price percentile: 38 · Reliability percentile: 0Point, Price percentile: 40 · Reliability percentile: 70Point, Price percentile: 43 · Reliability percentile: 5Point, Price percentile: 45 · Reliability percentile: 20Point, Price percentile: 48 · Reliability percentile: 15Point, Price percentile: 50 · Reliability percentile: 43Point, Price percentile: 53 · Reliability percentile: 37Point, Price percentile: 57 · Reliability percentile: 92Point, Price percentile: 60 · Reliability percentile: 75Point, Price percentile: 63 · Reliability percentile: 2Point, Price percentile: 65 · Reliability percentile: 67Point, Price percentile: 68 · Reliability percentile: 97Point, Price percentile: 70 · Reliability percentile: 72Point, Price percentile: 73 · Reliability percentile: 52Point, Price percentile: 75 · Reliability percentile: 47Point, Price percentile: 78 · Reliability percentile: 95Point, Price percentile: 80 · Reliability percentile: 22Point, Price percentile: 83 · Reliability percentile: 100Point, Price percentile: 85 · Reliability percentile: 35Point, Price percentile: 88 · Reliability percentile: 27Point, Price percentile: 90 · Reliability percentile: 85Point, Price percentile: 93 · Reliability percentile: 62Point, Price percentile: 95 · Reliability percentile: 87Point, Price percentile: 98 · Reliability percentile: 65Point, Price percentile: 100 · Reliability percentile: 55Tullahoma Board-Public Utils, Price percentile: 51 · Reliability percentile: 78
Tullahoma Board-Public Utils vs. a 40-utility national peer sample, price percentile vs. reliability percentile.

Revenue per customer: $2,554/year · Latest SAIDI: 68.8 minutes/year.

SAIDI 2023 breakdown: 68.8 minutes

Reliability Trend (2020–2023)

Year SAIDI (min) SAIDI nMED SAIFI Customers
2020 73.8 29.1 1.233 11,215
2021 361.4 27.4 3.559 11,059
2022 40.9 40.9 2.279 11,215
2023 68.8 26.5 2.763 11,215

SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.

Service Area

Tullahoma Board-Public Utils serves 1 ZIP code in Tennessee.

37388

Frequently Asked Questions

How reliable is Tullahoma Board-Public Utils?

Tullahoma Board-Public Utils had a SAIDI of 68.8 minutes in 2023 including major weather events, but 26.5 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.

What type of utility is Tullahoma Board-Public Utils?

Tullahoma Board-Public Utils is classified as a Municipal serving Tennessee.

How many customers does Tullahoma Board-Public Utils serve?

Tullahoma Board-Public Utils serves approximately 11,180 customers in Tennessee.

How has Tullahoma Board-Public Utils's reliability changed over time?

Tullahoma Board-Public Utils 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
11,180
Annual Revenue
$0.03B
EIA ID
19266

Explore

Utilities with similar EIA profiles

Two cross-state peer sets for Tullahoma Board-Public Utils. 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 (11K here), outside Tennessee.

Black Hills Electric Coop, Inc 11K · SD Oconomowoc Utilities 11K · WI City of Forest Grove 11K · OR Midwest Electric, Inc - (OH) 11K · OH

Similar chronic SAIDI

Nearest utilities by latest SAIDI minutes (68.8 here), outside Tennessee, excluding the customer-peer set.

Town of Hudson - (MA) 68.3 min · MA City of Painesville 68.2 min · OH Grand Valley Power 68.0 min · CO City of Homestead - (FL) 69.7 min · FL

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.