Cooperative Washington

Inland Power & Light Company

219min
SAIDI 2023
1.20
SAIFI 2023
44,400
Customers

What This Utility Data Tells You

Inland Power & Light Company is a member-owned electric cooperative operating in Washington under EIA identifier 8699. It reports service to approximately 44,400 customer accounts and generated about $0.09 billion in annual electric revenue, with a service footprint spanning 98 ZIP codes. As a cooperative, its governance is accountable to its ratepayer-members rather than shareholders, which often shapes rate-setting and reinvestment priorities.

In 2023, the average Inland Power & Light Company customer experienced 219.0 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. SAIFI — the average number of outage events per customer — was 1.20 for the same period, so customers statistically faced roughly 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 201.0 minutes — the gap between that figure and the headline 219.0 reveals how much weather, not day-to-day infrastructure, drove outages.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for Inland Power & Light Company, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has improved from 797.0 to 219.0 minutes over that window — a meaningful direction for prospective customers and regulators watching capital investment outcomes. 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

219 min per year

Average outage minutes (2023)

SAIFI

1.20 interruptions/yr

Outage frequency (2023)

Customers

44,400

Served in Washington

SAIDI vs. National Average (180 min) 54.8%

219 minutes per customer per year

Inland Power & Light Company SAIDI

Minutes without power per year (2023)

219 SAIDI219 SAIDINat. avg 120120SAIDI219SAIDI

Below Average

Reliability Trend (2020–2023)

Year SAIDI (min) SAIDI nMED SAIFI Customers
2020 797.0 232.0 1.970 42,853
2021 712.0 204.0 1.849 44,575
2022 325.0 204.0 1.457 44,528
2023 219.0 201.0 1.202 45,972

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

Service Area

Inland Power & Light Company serves 98 ZIP codes in Washington.

8380483822838518385483856838698387698832990019900399004990059900699008990099901199012990139901499016990179901899019990209902199022990239902599026990279902999030990319903299033990349903699037990399904099102991039910599110991119911399116991179912299125991289912999130991339913499135991369913899140991439914499147991499915499156991589915999161991639916999170991719917499176991859920199205992069920799208992129921499215992169921799218992199922399224992289925199301993289933399347993719940299403

Frequently Asked Questions

How reliable is Inland Power & Light Company?

Inland Power & Light Company had a SAIDI of 219.0 minutes in 2023, meaning the average customer experienced about 219 minutes of outages that year. This is near the national average.

What type of utility is Inland Power & Light Company?

Inland Power & Light Company is classified as a Cooperative serving Washington. Electric cooperatives are member-owned nonprofit utilities, typically serving rural areas.

What does SAIDI mean for Inland Power & Light Company?

SAIDI (System Average Interruption Duration Index) measures the average total minutes per year that a customer of Inland Power & Light Company experiences power outages. A lower SAIDI indicates better reliability. The national average is roughly 120-180 minutes per year, so comparing Inland Power & Light Company's SAIDI to that benchmark shows whether this utility is above or below average.

How many customers does Inland Power & Light Company serve?

Inland Power & Light Company serves approximately 44,400 customers in Washington. Customer count can affect reliability metrics because larger utilities may face different infrastructure challenges compared to smaller ones.

How has Inland Power & Light Company's reliability changed over time?

Inland Power & Light Company 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
Cooperative
State
Washington
Customers
44,400
Annual Revenue
$0.09B
EIA ID
8699
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.