Cooperative · South Carolina · EIA 1763
Black River Electric Coop, Inc - (SC)
Cooperative · South Carolina · 35K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 126 minutes/customer.
Reliability verdict
Black River Electric Coop, Inc - (SC) shows near-benchmark chronic reliability in 2023: 115 minutes SAIDI excluding major events across 35K customers.
- 126 min
- SAIDI 2023
- 1.18
- SAIFI 2023
- 115 min
- SAIDI ex-MED
- 35K
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: mid-cohort SAIDI between the 96 and 258 minute tercile cuts.
What mid-pack Black River Electric Coop, Inc - (SC) filings show
Black River Electric Coop, Inc - (SC) is a member-owned electric cooperative operating in South Carolina under EIA identifier 1763. It reports service to approximately 34,508 customer accounts and generated about $0.08 billion in annual electric revenue, with a service footprint spanning 40 ZIP codes. Being member-owned, this cooperative answers to its ratepayers rather than outside shareholders, a structure that tends to influence how rate cases and capital spending get decided.
In 2023, the average Black River Electric Coop, Inc - (SC) customer experienced 126.0 minutes of power interruptions, a metric called SAIDI (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. SAIFI, the average number of outage events per customer, was 1.18 for the same period, so customers statistically faced roughly 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 115.0 minutes, the gap between that figure and the headline 126.0 reveals how much weather, not day-to-day infrastructure, drove outages.
Black River Electric Coop, Inc - (SC) has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. SAIDI climbed from 101.7 to 126.0 minutes over that window, a shift that can point to worsening weather exposure or delayed grid modernization.
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.
126 minutes per customer per year
Minutes without power per year (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Black River Electric Coop, Inc - (SC) from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Black River Electric Coop, Inc - (SC) SAIDI trend
Black River Electric Coop, Inc - (SC) vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
126 Lower than most fewer outage minutes than 59% 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 Black River Electric Coop, Inc - (SC) sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Black River Electric Coop, Inc - (SC) charges more per customer than 42% of them, and is more reliable (lower SAIDI) than 62% 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: $2,399/year · Latest SAIDI: 126.0 minutes/year.
SAIDI 2023 breakdown: 126.0 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 101.7 | 87.5 | 1.110 | - |
| 2021 | 94.7 | 82.5 | 1.068 | - |
| 2022 | 293.0 | 68.0 | 1.998 | 33,671 |
| 2023 | 126.0 | 115.0 | 1.180 | 34,186 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Black River Electric Coop, Inc - (SC) serves 40 ZIP codes in South Carolina.
Frequently Asked Questions
How reliable is Black River Electric Coop, Inc - (SC)?
Black River Electric Coop, Inc - (SC) had a SAIDI of 126.0 minutes in 2023. Leaving aside major weather events, that figure sits close to the national average.
What type of utility is Black River Electric Coop, Inc - (SC)?
Black River Electric Coop, Inc - (SC) is classified as a Cooperative serving South Carolina.
How many customers does Black River Electric Coop, Inc - (SC) serve?
Black River Electric Coop, Inc - (SC) serves approximately 34,508 customers in South Carolina.
How has Black River Electric Coop, Inc - (SC)'s reliability changed over time?
Black River Electric Coop, Inc - (SC) 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
- South Carolina
- Customers
- 34,508
- Annual Revenue
- $0.08B
- EIA ID
- 1763
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Black River Electric Coop, Inc - (SC). 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 (35K here), outside South Carolina.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (126.0 here), outside South Carolina, 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.