Cooperative · Arizona · EIA 18280
Sulphur Springs Valley E C Inc
Cooperative · Arizona · 53K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 137 minutes/customer.
Reliability verdict
Sulphur Springs Valley E C Inc shows above-average chronic reliability in 2023: 92 minutes SAIDI excluding major events across 53K customers.
- 137 min
- SAIDI 2023
- 1.13
- SAIFI 2023
- 92 min
- SAIDI ex-MED
- 53K
- 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 Sulphur Springs Valley E C Inc filings show
Sulphur Springs Valley E C Inc is a member-owned electric cooperative operating in Arizona under EIA identifier 18280. It reports service to approximately 53,435 customer accounts and generated about $0.15 billion in annual electric revenue, with a service footprint spanning 31 ZIP codes. Cooperative ownership means the utility is run for the benefit of the ratepayer-members who elect its board, rather than for shareholder returns, which can shift how rate and investment decisions get made.
In 2023, the average Sulphur Springs Valley E C Inc customer experienced 136.7 minutes of power interruptions, a measure known as SAIDI, or 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. Over the same period, SAIFI (outage events per customer) was 1.13, putting the typical customer at roughly 1 distinct interruption that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 91.6 minutes; the difference from the headline 136.7 shows how much of the outage total came from weather rather than everyday grid issues.
Sulphur Springs Valley E C Inc has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. Over that window, SAIDI moved from 155.7 down to 136.7 minutes, a trend worth noting for anyone weighing 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.
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 Sulphur Springs Valley E C Inc from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Sulphur Springs Valley E C Inc SAIDI trend
Sulphur Springs Valley E C 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 Sulphur Springs Valley E C 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, Sulphur Springs Valley E C Inc charges more per customer than 61% of them, and is more reliable (lower SAIDI) than 61% 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.
Revenue per customer: $2,719/year · Latest SAIDI: 136.7 minutes/year.
SAIDI 2023 breakdown: 136.7 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 155.7 | 139.2 | 1.210 | 52,636 |
| 2021 | 70.6 | 52.4 | 0.670 | 53,083 |
| 2022 | 97.0 | 55.2 | 0.600 | 53,522 |
| 2023 | 136.7 | 91.6 | 1.130 | 53,485 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Sulphur Springs Valley E C Inc serves 31 ZIP codes in Arizona.
Frequently Asked Questions
How reliable is Sulphur Springs Valley E C Inc?
Sulphur Springs Valley E C Inc had a SAIDI of 136.7 minutes in 2023. Excluding major storm impacts, this beats the national average, a sign of above-average reliability.
What type of utility is Sulphur Springs Valley E C Inc?
Sulphur Springs Valley E C Inc is classified as a Cooperative serving Arizona.
How many customers does Sulphur Springs Valley E C Inc serve?
Sulphur Springs Valley E C Inc serves approximately 53,435 customers in Arizona.
How has Sulphur Springs Valley E C Inc's reliability changed over time?
Sulphur Springs Valley E C 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
- Arizona
- Customers
- 53,435
- Annual Revenue
- $0.15B
- EIA ID
- 18280
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Sulphur Springs Valley E C 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 (53K here), outside Arizona.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (136.7 here), outside Arizona, 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.