Cooperative · Florida · EIA 18304
Sumter Electric Coop, Inc
Cooperative · Florida · 241K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 71 minutes/customer.
Reliability verdict
Sumter Electric Coop, Inc shows above-average chronic reliability in 2023: 68 minutes SAIDI excluding major events across 241K customers.
- 71 min
- SAIDI 2023
- 1.03
- SAIFI 2023
- 68 min
- SAIDI ex-MED
- 241K
- 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 Sumter Electric Coop, Inc filings show
Sumter Electric Coop, Inc is a member-owned electric cooperative operating in Florida under EIA identifier 18304. It reports service to approximately 240,818 customer accounts and generated about $0.47 billion in annual electric revenue, with a service footprint spanning 91 ZIP codes. As a cooperative, its governance is accountable to its ratepayer-members rather than shareholders, which often shapes rate-setting and reinvestment priorities.
In 2023, the average Sumter Electric Coop, Inc customer experienced 71.4 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). That places this utility well below the 120–180 minute national benchmark, signaling strong grid hardening and fast restoration practices. The SAIFI figure, which tracks average outage events per customer, came in at 1.03 for the same period, meaning customers statistically saw about 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 68.2 minutes, the gap between that figure and the headline 71.4 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Sumter Electric Coop, Inc, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has improved from 78.8 to 71.4 minutes over that window, a meaningful direction for prospective customers and regulators watching 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.
71 min/year per customer
Power-out minutes per year (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Sumter Electric Coop, Inc from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Sumter Electric Coop, Inc SAIDI trend
Sumter Electric Coop, Inc vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
71 Lower than most fewer outage minutes than 74% 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 Sumter Electric Coop, Inc sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Sumter Electric Coop, Inc charges more per customer than 12% of them, and is more reliable (lower SAIDI) than 78% of them, placing it in the quadrant where it pays less while still being more reliable, the best-value quadrant. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $1,945/year · Latest SAIDI: 71.4 minutes/year.
SAIDI 2023 breakdown: 71.4 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI |
|---|---|---|---|
| 2020 | 78.8 | 72.7 | 1.280 |
| 2021 | 72.1 | 71.4 | 1.280 |
| 2022 | 148.1 | 86.5 | 1.560 |
| 2023 | 71.4 | 68.2 | 1.030 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Sumter Electric Coop, Inc serves 91 ZIP codes in Florida.
Frequently Asked Questions
How reliable is Sumter Electric Coop, Inc?
Sumter Electric Coop, Inc had a SAIDI of 71.4 minutes in 2023. Excluding major storm impacts, this beats the national average, a sign of above-average reliability.
What type of utility is Sumter Electric Coop, Inc?
Sumter Electric Coop, Inc is classified as a Cooperative serving Florida.
How many customers does Sumter Electric Coop, Inc serve?
Sumter Electric Coop, Inc serves approximately 240,818 customers in Florida.
How has Sumter Electric Coop, Inc's reliability changed over time?
Sumter Electric Coop, Inc 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
- Cooperative
- State
- Florida
- Customers
- 240,818
- Annual Revenue
- $0.47B
- EIA ID
- 18304
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Sumter Electric Coop, Inc. 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 (241K here), outside Florida.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (71.4 here), outside Florida, 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.