Municipal · Arizona · EIA 16572
Salt River Project
Municipal · Arizona · 1.1M customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 70 minutes/customer.
Reliability verdict
Salt River Project shows above-average chronic reliability in 2023: 49 minutes SAIDI excluding major events across 1.1M customers.
- 70 min
- SAIDI 2023
- 1.01
- SAIFI 2023
- 49 min
- SAIDI ex-MED
- 1.1M
- 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 Salt River Project filings show
Salt River Project is a municipally-owned utility operating in Arizona under EIA identifier 16572. It reports service to approximately 1,141,630 customer accounts and generated about $3.40 billion in annual electric revenue, with a service footprint spanning 136 ZIP codes. Municipal ownership means a local board or city council typically oversees this utility, and it is exempt from federal income tax.
In 2023, the average Salt River Project customer experienced 70.0 minutes of power interruptions, a measure known as SAIDI, or 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. Over the same period, SAIFI (outage events per customer) was 1.01, putting the typical customer at roughly 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 49.2 minutes, the gap between that figure and the headline 70.0 reveals how much weather, not day-to-day infrastructure, drove outages.
Salt River Project 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 47.3 to 70.0 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.
70 outage minutes per customer annually
Annual minutes without electric service (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Salt River Project from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Salt River Project SAIDI trend
Salt River Project vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
70 Among the lowest fewer outage minutes than 75% 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 Salt River Project sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Salt River Project charges more per customer than 73% of them, and is more reliable (lower SAIDI) than 78% 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: $2,976/year · Latest SAIDI: 70.0 minutes/year.
SAIDI 2023 breakdown: 70.0 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 47.3 | 40.8 | 0.751 | 1,072,666 |
| 2021 | 85.1 | 47.9 | 1.014 | 1,091,549 |
| 2022 | 81.4 | 49.9 | 1.088 | 1,113,592 |
| 2023 | 70.0 | 49.2 | 1.011 | 1,137,020 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Salt River Project serves 136 ZIP codes in Arizona.
Frequently Asked Questions
How reliable is Salt River Project?
Salt River Project had a SAIDI of 70.0 minutes in 2023. Leaving aside major weather events, that figure comes in under the national average, pointing to above-average reliability.
What type of utility is Salt River Project?
Salt River Project is classified as a Municipal serving Arizona.
How many customers does Salt River Project serve?
Salt River Project serves approximately 1,141,630 customers in Arizona.
How has Salt River Project's reliability changed over time?
Salt River Project 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
- Municipal
- State
- Arizona
- Customers
- 1,141,630
- Annual Revenue
- $3.40B
- EIA ID
- 16572
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Salt River Project. 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 (1.1M here), outside Arizona.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (70.0 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.