Municipal Washington

PUD No 1 of Lewis County

444min
SAIDI 2023
3.04
SAIFI 2023
34,809
Customers

What This Utility Data Tells You

PUD No 1 of Lewis County is a municipally-owned utility operating in Washington under EIA identifier 10944. It reports service to approximately 34,809 customer accounts and generated about $0.08 billion in annual electric revenue, with a service footprint spanning 44 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 1 of Lewis County customer experienced 444.5 minutes of power interruptions — a metric called SAIDI (System Average Interruption Duration Index). That is substantially above the 120–180 minute national benchmark, indicating either storm-prone geography, aging infrastructure, or extended restoration windows. SAIFI — the average number of outage events per customer — was 3.04 for the same period, so customers statistically faced roughly 3 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 423.3 minutes — the gap between that figure and the headline 444.5 reveals how much weather, not day-to-day infrastructure, drove outages.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for PUD No 1 of Lewis County, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 433.4 to 444.5 minutes, which may reflect either worsening weather exposure or delayed grid modernization. All figures on this page come directly from EIA Form 861, the federal annual electric power industry survey, with service territory ZIPs sourced from OpenEI — you can cross-reference them with your own utility bill or use them when comparing providers before relocating.

SAIDI

444 min per year

Average outage minutes (2023)

SAIFI

3.04 interruptions/yr

Outage frequency (2023)

Customers

34,809

Served in Washington

SAIDI vs. National Average (180 min) 100.0%

444 minutes per customer per year

PUD No 1 of Lewis County SAIDI

Minutes without power per year (2023)

444 SAIDI444 SAIDINat. avg 120120SAIDI444SAIDI

Below Average

Reliability Trend (2020–2023)

Year SAIDI (min) SAIDI nMED SAIFI Customers
2020 433.4 259.6 2.690 34,012
2021 897.0 345.0 4.200 34,114
2022 739.5 421.2 3.262 34,587
2023 444.5 423.3 3.045 35,227

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

Service Area

PUD No 1 of Lewis County serves 44 ZIP codes in Washington.

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Frequently Asked Questions

How reliable is PUD No 1 of Lewis County?

PUD No 1 of Lewis County had a SAIDI of 444.5 minutes in 2023, meaning the average customer experienced about 444 minutes of outages that year. This is above the national average, indicating below-average reliability.

What type of utility is PUD No 1 of Lewis County?

PUD No 1 of Lewis County is classified as a Municipal serving Washington. Municipal utilities are owned and operated by local governments.

What does SAIDI mean for PUD No 1 of Lewis County?

SAIDI (System Average Interruption Duration Index) measures the average total minutes per year that a customer of PUD No 1 of Lewis County experiences power outages. A lower SAIDI indicates better reliability. The national average is roughly 120-180 minutes per year, so comparing PUD No 1 of Lewis County's SAIDI to that benchmark shows whether this utility is above or below average.

How many customers does PUD No 1 of Lewis County serve?

PUD No 1 of Lewis County serves approximately 34,809 customers in Washington. Customer count can affect reliability metrics because larger utilities may face different infrastructure challenges compared to smaller ones.

How has PUD No 1 of Lewis County's reliability changed over time?

PUD No 1 of Lewis 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.

What is SAIDI without major event days?

SAIDI "without major event days" (SAIDI nMED) excludes outages caused by hurricanes, ice storms, and other catastrophic weather events. It better reflects day-to-day infrastructure reliability rather than vulnerability to extreme weather. Both standard SAIDI and SAIDI nMED are shown in the reliability trend table above.

Utility Profile

Type
Municipal
State
Washington
Customers
34,809
Annual Revenue
$0.08B
EIA ID
10944
Data Source: U.S. Energy Information Administration Form 861 annual electric power industry survey. ZIP service territory from OpenEI.

Related

Data sourced from official EIA reliability statistics and OpenEI utility rate database. See our methodology for details. Retrieved and formatted by PlainUtility Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Energy Information Administration (EIA) Form 861. Consult a qualified professional before making decisions based on this data.