How reliable is Avista Corp,avista?

Avista Corp,avista did not report standardized SAIDI/SAIFI reliability metrics to the EIA. Outage history for the counties it serves is available on their individual pages.

How many customers does Avista Corp,avista serve?

Avista Corp,avista serves 17 counties across 3 states, per its EIA-861 service territory filing.

Where does Avista Corp,avista provide power?

Avista Corp,avista operates in Idaho, Montana, Washington. The full list of counties served is below, each linked to its live outage status.

Avista Corp,avista— Outages & Reliability

As of July 18, 2026 18:54 UTC, about 398 Avista Corp,avista customers are without power in 2 counties.

Avista Corp,avista is an electric utility serving 17 counties in 3 states. Avista Corp,avista did not report standardized reliability metrics to the EIA (common for smaller or short-form utilities), but its service territory and outage history are tracked below.

SCATTERED OUTAGES · ON ITS NETWORK

398

Avista Corp,avista customers out in 2 counties

Official reliability

US EIA

Not reported to EIA

OUTAGE TREND

Avista Corp,avista

398

AS OF LAST UPDATE · PEAK 1,148

Updated July 18, 2026

2 PM8 PM2 AM9 AM2 PM

Counties served by Avista Corp,avista (17)

Service territory reported to EIA-861 — each links to live outage status and history.

What causes Avista Corp,avista outages

Share of outage-time by reported cause across the counties it serves (territory-wide — may include other utilities in shared counties).

Planned / maintenance

60.6%

Weather / storm

24.8%

Equipment failure

14.6%

A reported cause is available for 7.8% of outage-time over 1 month of live data. Shares above are of the portion with a known cause.

Avista Corp,avista: FAQ

How reliable is Avista Corp,avista?: Avista Corp,avista did not report standardized SAIDI/SAIFI reliability metrics to the EIA. Outage history for the counties it serves is available on their individual pages.
How many customers does Avista Corp,avista serve?: Avista Corp,avista serves 17 counties across 3 states, per its EIA-861 service territory filing.
Where does Avista Corp,avista provide power?: Avista Corp,avista operates in Idaho, Montana, Washington. The full list of counties served is below, each linked to its live outage status.

Reliability metrics (SAIDI/SAIFI) and service territory from the US EIA Form 861. SAIDI/SAIFI are IEEE-standard, including major event days. Primary state: Idaho.