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EnergySavings · Washington · Utility

Avista Corp: what its customers actually pay

Data as of: EIA-861 annual 2024 (released 2025) · EIA monthly state prices February 2026 · EIA weekly heating-fuel survey Mar 30, 2026 · retail-choice registry reviewed Jun 2026 · URDB tariffs pulled Jun 2026. Page generated 2026-06-12.

Avista Corp residential customers paid an average of 11.87¢/kWh in 2024in line with the Washington average of 11.91¢/kWh (EIA-861). It served 246,055 residential customers across 9 WA counties. Territories are fixed by address, but the cheapest nearby utility, PUD No 2 of Grant County (6.01¢), works out about $633/yr less at 10,800 kWh/yr.

How Avista compares with the utilities next door

Utilities filing EIA-861 service territory in at least one county that Avista also serves — average residential ¢/kWh (EIA-861 2024) and annual cost difference vs Avista at 10,800 kWh/yr
Utility2024 ¢/kWhCustomersΔ vs Avista, ¢/kWh$/yr difference
PUD No 2 of Grant County 6.01 42,485 -5.86 -$633
Modern Electric Water Company 7.43 9,181 -4.44 -$479
PUD No 1 of Pend Oreille County 8.59 9,120 -3.28 -$354
Inland Power & Light Company 8.98 41,684 -2.89 -$312
Big Bend Electric Coop, Inc 9.10 5,841 -2.77 -$299
Vera Irrigation District #15 9.18 12,171 -2.69 -$291
Avista Corp (this page) 11.87 246,055

6 bundled utilities (≥5,000 customers) share at least one county with Avista. Positive $/yr = that utility's customers pay more than Avista customers at the same usage. Territories are fixed by address — these gaps measure cost differences between areas, not options you can pick between.

Where Avista customers pay more (county benchmark)

Counties served by Avista Corp: cheapest bundled utility operating in the same county and the annual difference at 10,800 kWh/yr (EIA-861 2024)
CountyCheapest utility in countyTheir ¢/kWhAvista premium, $/yr
FerryPUD No 1 of Douglas County3.15 +$941
AdamsPUD No 2 of Grant County6.01 +$633
GrantPUD No 2 of Grant County6.01 +$633
LincolnPUD No 2 of Grant County6.01 +$633
SpokaneModern Electric Water Company7.43 +$479
Pend OreillePUD No 1 of Pend Oreille County8.59 +$354
AsotinInland Power & Light Company8.98 +$312
StevensInland Power & Light Company8.98 +$312

Multiple utilities in one county means adjoining territories, not household choice — you cannot switch wires companies. Showing the 8 highest-premium counties of 9 served.

Rate trend and size

Avista Corp residential average price and customers, EIA-861 2023 vs 2024
Metric20232024Change
Average price, ¢/kWh10.7811.87+10.1%
Residential customers243,524246,055+1.0%

Ownership: Investor Owned. Statewide context: Washington electricity rates.

Supply vs delivery on a Avista bill

Washington is a regulated retail market — Avista customers cannot choose a different supplier; rates are set in utility-commission proceedings. Official information: utc.wa.gov.

Counties served (WA, EIA-861 2024)

Adams · Asotin · Ferry · Grant · Lincoln · Pend Oreille · Spokane · Stevens · Whitman

Questions people ask

Is Avista Corp more expensive than other Washington utilities?
Avista Corp customers paid an average 11.87 cents/kWh in 2024 — in line with the Washington volume-weighted average of 11.91 cents (EIA-861, bundled residential service).
Can I switch away from Avista Corp?
No — distribution territory is fixed by address and Washington has no residential supplier shopping. Rate changes go through the state utility commission (utc.wa.gov).
How many customers does Avista Corp have?
246,055 residential customers in Washington in 2024 across 9 counties, per its EIA-861 federal filing. Ownership type: investor-owned.
About these numbers. Rates shown are averages computed from federal regulatory filings (EIA Form 861) and public tariff databases — confirm with your utility before making decisions; your actual rate depends on your tariff, usage, and riders. Distribution utility is determined by address and generally cannot be chosen; in retail-choice states you may choose your supplier for the supply portion of the bill. Savings figures use 10,800 kWh/yr (US average residential usage) and are estimates, not quotes. EnergySavings is an independent data project by CertiHomes and is not affiliated with any utility, supplier, or government agency.