Cooperative · South Carolina · EIA 12462
Mid-Carolina Electric Coop Inc
Cooperative · South Carolina · 60K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 137 minutes/customer.
Reliability verdict
Mid-Carolina Electric Coop Inc shows near-benchmark chronic reliability in 2023: 121 minutes SAIDI excluding major events across 60K customers.
- 137 min
- SAIDI 2023
- 1.63
- SAIFI 2023
- 121 min
- SAIDI ex-MED
- 60K
- 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 Mid-Carolina Electric Coop Inc filings show
Mid-Carolina Electric Coop Inc is a member-owned electric cooperative operating in South Carolina under EIA identifier 12462. It reports service to approximately 59,829 customer accounts and generated about $0.14 billion in annual electric revenue, with a service footprint spanning 21 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 Mid-Carolina Electric Coop Inc customer experienced 137.1 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. The SAIFI figure, which tracks average outage events per customer, came in at 1.63 for the same period, meaning customers statistically saw about 2 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 121.4 minutes, the gap between that figure and the headline 137.1 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Mid-Carolina Electric Coop Inc, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI dropped from 194.9 to 137.1 minutes across that span, a direction regulators and prospective customers tend to watch closely.
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.
137 minutes per customer per year
Power-out minutes per year (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Mid-Carolina Electric Coop Inc from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Mid-Carolina Electric Coop Inc SAIDI trend
Mid-Carolina 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
137 Lower than most fewer outage minutes than 57% 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 Mid-Carolina 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, Mid-Carolina Electric Coop Inc charges more per customer than 35% of them, and is more reliable (lower SAIDI) than 61% 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: $2,295/year · Latest SAIDI: 137.1 minutes/year.
SAIDI 2023 breakdown: 137.1 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 194.9 | 109.2 | 2.274 | 57,600 |
| 2021 | 135.1 | 94.7 | 2.134 | 58,371 |
| 2022 | 178.3 | 121.9 | 2.498 | 59,114 |
| 2023 | 137.1 | 121.4 | 1.631 | 59,690 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Mid-Carolina Electric Coop Inc serves 21 ZIP codes in South Carolina.
Frequently Asked Questions
How reliable is Mid-Carolina Electric Coop Inc?
Mid-Carolina Electric Coop Inc had a SAIDI of 137.1 minutes in 2023. Excluding major weather events, this is near the national average.
What type of utility is Mid-Carolina Electric Coop Inc?
Mid-Carolina Electric Coop Inc is classified as a Cooperative serving South Carolina.
How many customers does Mid-Carolina Electric Coop Inc serve?
Mid-Carolina Electric Coop Inc serves approximately 59,829 customers in South Carolina.
How has Mid-Carolina Electric Coop Inc's reliability changed over time?
Mid-Carolina Electric Coop Inc 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
- Cooperative
- State
- South Carolina
- Customers
- 59,829
- Annual Revenue
- $0.14B
- EIA ID
- 12462
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Mid-Carolina 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 (60K here), outside South Carolina.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (137.1 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.