Municipal · Arizona · EIA 30518
Electrical Dist No3 Pinal County
Municipal · Arizona · 30K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 73 minutes/customer.
Reliability verdict
Electrical Dist No3 Pinal County shows above-average chronic reliability in 2023: 73 minutes SAIDI excluding major events across 30K customers.
- 73 min
- SAIDI 2023
- 1.22
- SAIFI 2023
- 73 min
- SAIDI ex-MED
- 30K
- 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 Electrical Dist No3 Pinal County filings show
Electrical Dist No3 Pinal County is a municipally-owned utility operating in Arizona under EIA identifier 30518. It reports service to approximately 30,420 customer accounts and generated about $0.10 billion in annual electric revenue, with a service footprint spanning 4 ZIP codes. As a municipal utility, it is typically governed by a local board or city council and is exempt from federal income tax.
In 2023, the average Electrical Dist No3 Pinal County customer experienced 73.0 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). That is comfortably under the 120–180 minute national benchmark range, a sign of solid grid resilience and quick outage response. SAIFI, the average number of outage events per customer, was 1.22 for the same period, so customers statistically faced roughly 1 distinct interruption that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 73.0 minutes, and the spread against the headline 73.0 indicates how much weather, versus routine infrastructure, drove the outage total.
With 4 consecutive years of EIA data (2020–2023), Electrical Dist No3 Pinal County's reliability record can be judged on trend rather than one isolated year. SAIDI has increased from 50.9 to 73.0 minutes, which may reflect either 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.
73 min/year per customer
Annual minutes without electric service (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Electrical Dist No3 Pinal County from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Electrical Dist No3 Pinal County SAIDI trend
Electrical Dist No3 Pinal County vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
73 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 Electrical Dist No3 Pinal County sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Electrical Dist No3 Pinal County charges more per customer than 83% of them, and is more reliable (lower SAIDI) than 77% 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: $3,297/year · Latest SAIDI: 73.0 minutes/year.
SAIDI 2023 breakdown: 73.0 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 50.9 | 50.9 | 0.640 | 27,500 |
| 2021 | 127.2 | 47.9 | 1.390 | 29,200 |
| 2022 | 86.0 | 61.0 | 1.180 | 30,550 |
| 2023 | 73.0 | 73.0 | 1.220 | 31,250 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Electrical Dist No3 Pinal County serves 4 ZIP codes in Arizona.
Frequently Asked Questions
How reliable is Electrical Dist No3 Pinal County?
Electrical Dist No3 Pinal County had a SAIDI of 73.0 minutes in 2023. Excluding major weather events, this is below the national average, indicating above-average reliability.
What type of utility is Electrical Dist No3 Pinal County?
Electrical Dist No3 Pinal County is classified as a Municipal serving Arizona.
How many customers does Electrical Dist No3 Pinal County serve?
Electrical Dist No3 Pinal County serves approximately 30,420 customers in Arizona.
How has Electrical Dist No3 Pinal County's reliability changed over time?
Electrical Dist No3 Pinal County has 4 years of reliability data (2020-2023). SAIDI has remained relatively stable over this period. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- Municipal
- State
- Arizona
- Customers
- 30,420
- Annual Revenue
- $0.10B
- EIA ID
- 30518
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Electrical Dist No3 Pinal County. 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 (30K here), outside Arizona.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (73.0 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.