Municipal · Washington · EIA 15419
PUD No 3 of Mason County
Municipal · Washington · 36K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 248 minutes/customer.
Reliability verdict
PUD No 3 of Mason County shows near-benchmark chronic reliability in 2023: 211 minutes SAIDI excluding major events across 36K customers.
- 248 min
- SAIDI 2023
- 1.10
- SAIFI 2023
- 211 min
- SAIDI ex-MED
- 36K
- 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 PUD No 3 of Mason County filings show
PUD No 3 of Mason County is a municipally-owned utility operating in Washington under EIA identifier 15419. It reports service to approximately 35,985 customer accounts and generated about $0.08 billion in annual electric revenue, with a service footprint spanning 19 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 PUD No 3 of Mason County customer experienced 247.8 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. Over the same period, SAIFI (outage events per customer) was 1.10, putting the typical customer at roughly 1 distinct interruption that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 210.5 minutes; the difference from the headline 247.8 shows how much of the outage total came from weather rather than everyday grid issues.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for PUD No 3 of Mason County, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has improved from 452.1 to 247.8 minutes over that window, a meaningful direction for prospective customers and regulators watching 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.
248 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 PUD No 3 of Mason County from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
PUD No 3 of Mason County SAIDI trend
PUD No 3 of Mason County vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
248 Around the middle fewer outage minutes than 35% 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 PUD No 3 of Mason 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, PUD No 3 of Mason County charges more per customer than 31% of them, and is more reliable (lower SAIDI) than 38% of them, placing it in the quadrant where it pays less and is less reliable. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $2,249/year · Latest SAIDI: 247.8 minutes/year.
SAIDI 2023 breakdown: 247.8 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI |
|---|---|---|---|
| 2020 | 452.1 | 211.9 | 2.000 |
| 2021 | 418.9 | 198.4 | 1.675 |
| 2022 | 533.9 | 308.1 | 1.910 |
| 2023 | 247.8 | 210.5 | 1.102 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
PUD No 3 of Mason County serves 19 ZIP codes in Washington.
Frequently Asked Questions
How reliable is PUD No 3 of Mason County?
PUD No 3 of Mason County had a SAIDI of 247.8 minutes in 2023. Excluding major storm impacts, this tracks roughly with the national average.
What type of utility is PUD No 3 of Mason County?
PUD No 3 of Mason County is classified as a Municipal serving Washington.
How many customers does PUD No 3 of Mason County serve?
PUD No 3 of Mason County serves approximately 35,985 customers in Washington.
How has PUD No 3 of Mason County's reliability changed over time?
PUD No 3 of Mason County 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
- Washington
- Customers
- 35,985
- Annual Revenue
- $0.08B
- EIA ID
- 15419
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for PUD No 3 of Mason 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 (36K here), outside Washington.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (247.8 here), outside Washington, 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.