Cooperative · Mississippi · EIA 3841

Coast Electric Power Assn - (MS)

Cooperative · Mississippi · 89K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 108 minutes/customer.

Reliability verdict

Coast Electric Power Assn - (MS) shows near-benchmark chronic reliability in 2023: 101 minutes SAIDI excluding major events across 89K customers.

108 min
SAIDI 2023
1.51
SAIFI 2023
101 min
SAIDI ex-MED
89K
Customers

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

Subscribe to EIA updates

Signature read: mid-cohort SAIDI between the 96 and 258 minute tercile cuts.

What mid-pack Coast Electric Power Assn - (MS) filings show

Coast Electric Power Assn - (MS) is a member-owned electric cooperative operating in Mississippi under EIA identifier 3841. It reports service to approximately 88,942 customer accounts and generated about $0.23 billion in annual electric revenue, with a service footprint spanning 27 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 Coast Electric Power Assn - (MS) customer experienced 107.6 minutes of power interruptions, a measure known as SAIDI, or 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. Over the same period, SAIFI (outage events per customer) was 1.51, putting the typical customer at roughly 2 distinct interruptions that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 100.6 minutes, and the spread against the headline 107.6 indicates how much weather, versus routine infrastructure, drove the outage total.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for Coast Electric Power Assn - (MS), which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI dropped from 4385.1 to 107.6 minutes across that span, a direction regulators and prospective customers tend to watch closely. Note: this figure is unusually low compared to typical U.S. utility performance and may reflect an incomplete EIA filing for this year rather than a genuine reliability improvement -- treat with caution and cross-check against Coast Electric Power Assn - (MS)'s other reported years.

C-
Reliability Score
52/100
Coast Electric Power Assn - (MS) · 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 D 100.6 min/yr
SAIDI excluding major-event days — day-to-day grid performance
Total Outage Duration C+ 107.6 min/yr
SAIDI including storms and major events — the full-year experience
Outage Frequency D 1.51/yr
SAIFI — average number of interruptions per customer per year
SAIDI vs. national mean (341 min) 14.3%

108 min/year per customer

Coast Electric Power Assn - (MS) SAIDI

Minutes without power per year (2023)

108 SAIDI108 SAIDINat. avg 341341SAIDI108SAIDI

Excellent

SAIDI by year (2020-2023)

Minutes per customer-year · EIA Form 861

Year-by-year SAIDI for Coast Electric Power Assn - (MS) 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

Coast Electric Power Assn - (MS) SAIDI trend

0 1000 2000 3000 4000 5000 2020 2021 2022 2023 4385.1 803.9 105.3 107.6
Year-by-year SAIDI from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.

Coast Electric Power Assn - (MS) vs the nationwide SAIDI distribution

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

108 Lower than most fewer outage minutes than 64% 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 Coast Electric Power Assn - (MS) sits on price vs. reliability

Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Coast Electric Power Assn - (MS) charges more per customer than 53% of them, and is more reliable (lower SAIDI) than 67% 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.

Coast Electric Power Assn - (MS) 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: 80Point, 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: 72Point, 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: 77Point, Price percentile: 63 · Reliability percentile: 2Point, Price percentile: 65 · Reliability percentile: 70Point, Price percentile: 68 · Reliability percentile: 97Point, Price percentile: 70 · Reliability percentile: 75Point, 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: 55Coast Electric Power Assn - (MS), Price percentile: 53 · Reliability percentile: 67
Coast Electric Power Assn - (MS) vs. a 40-utility national peer sample, price percentile vs. reliability percentile.

Revenue per customer: $2,598/year · Latest SAIDI: 107.6 minutes/year.

SAIDI 2023 breakdown: 107.6 minutes

Reliability Trend (2020–2023)

Year SAIDI (min) SAIDI nMED SAIFI Customers
2020 4385.1 84.0 3.340 84,605
2021 803.9 121.1 2.700 86,078
2022 105.3 97.3 1.600 87,535
2023 107.6 100.6 1.510 88,945

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

Service Area

Coast Electric Power Assn - (MS) serves 27 ZIP codes in Mississippi.

394263942939455394633946639470395013950339505395203952139525395293953039531395323954039556395583956039561395653957139572395733957439576

Frequently Asked Questions

How reliable is Coast Electric Power Assn - (MS)?

Coast Electric Power Assn - (MS) had a SAIDI of 107.6 minutes in 2023. Excluding major storm impacts, this tracks roughly with the national average.

What type of utility is Coast Electric Power Assn - (MS)?

Coast Electric Power Assn - (MS) is classified as a Cooperative serving Mississippi.

How many customers does Coast Electric Power Assn - (MS) serve?

Coast Electric Power Assn - (MS) serves approximately 88,942 customers in Mississippi.

How has Coast Electric Power Assn - (MS)'s reliability changed over time?

Coast Electric Power Assn - (MS) 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
Mississippi
Customers
88,942
Annual Revenue
$0.23B
EIA ID
3841

Utilities with similar EIA profiles

Two cross-state peer sets for Coast Electric Power Assn - (MS). 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 (89K here), outside Mississippi.

Similar chronic SAIDI

Nearest utilities by latest SAIDI minutes (107.6 here), outside Mississippi, 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.