Little Falls (WA) — Plant Summary
- EIA Plant ID
- 3866
- Capacity
- 43.2 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Lincoln, WA
- Operating Since
- 1910
- Generators
- 4
- Operator
- Avista Corp
- Parent Company
- Avista
- Annual Generation
- 185,339 MWh
- Capacity Factor
- 49.0%
- Balancing Authority
- Avista Corporation
- ISO/RTO
- —
- NERC Region
- WECC
Little Falls (WA)
OperatingHydro
Ranked #34 of 75 Hydro plants in WA#329 of 1454 nationally
43.2 MW Hydro operating in Lincoln, WA — Avista Corporation
EIAWD
43.2 MW
Nameplate Capacity
4
Generators
units
Conventional Hydroelectric
Technology
1910
Operating Since
Location
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Avista Corp | Avista | — |
| Owner(s) | Avista Corp | Avista | — |
| Status | Operating | — | — |
Ownership Chain
About
The Little Falls Hydroelectric Power Plant, on the Spokane River near Reardan, Washington, about 30 miles (48 km) west of Spokane was built during 1907–10. It was listed on the National Register of Historic Places in 1988. The listing included one contributing building and seven contributing structures on 12 acres (4.9 ha). The area spans the border of Lincoln County, Washington and Stevens County, Washington.
Read more on WikipediaLocated in Lincoln County, Washington, the Little Falls hydroelectric plant has a total capacity of 43.2 MW across four generators. The plant began operating in 1910 and is owned and operated by Avista Corp. The primary fuel source is water (WAT), and the plant utilizes conventional hydroelectric technology. Little Falls ranks 34th out of 75 power plants in Washington and 331st nationally out of 1464 plants.
In the most recent year with available data, Little Falls generated 185,339 MWh, achieving a capacity factor of 49.0%. The plant operates within the Avista Corporation balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Financial data indicates an installed cost of $1618.16 per kW. The plant's operations and impact have been covered in 10 news articles, with 7 focused on industry topics, 2 on regulatory matters, and 1 on deals.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Avista Corporation
Grid Voltage
115 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
18.5K MWh
Latest Month
185.3K MWh
Annual Generation
49.0%
Capacity Factor
Jan 2022 – Dec 2024
Financial DataBeta
Source: FERC Form 1HIGH
$1,661/kW
Installed Cost
$11.7/MWh
Operating Cost
Avista Corporation
Reporting Utility
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
Regulatory·state puc
New targeted tax in WA aims to keep coal power plant shut down
Tax legislation Washington Gov. Bob Ferguson signed Wednesday targets the last coal-fired power plant in the Pacific Northwest.
Bob Ferguson (executive)Washington (regulator)
Lynnwood Times·3 days ago
Industry·other
Washington Aqueduct implements water supply protection measures following Potomac Interceptor sewage spill; no impact on drinking water
Photo By Christopher Rosario | U.S. Army Corps of Engineers Baltimore District's Washington Aqueduct operates two...... read more read more.
Washington Aqueduct (operator)U.S. Army Corps of Engineers Baltimore District (other)
DVIDS - Defense Visual Information Distribution Service·4 weeks ago
Regulatory·federal policy
Trump orders Pentagon to buy coal power as the polluting fuel struggles to survive
President Donald Trump signed an order directing the Defense Department to favor electricity derived from coal, expanding his campaign to...
Donald Trump (other)Defense Department (regulator)
The Washington Post·4 weeks ago
Deals·debt financing
Trump officials give $1 billion loan to restart Three Mile Island
The deal leaves taxpayers shouldering some of the risk of the plan to reopen the shuttered nuclear plant and sell its power to Microsoft for...
Microsoft (buyer)Three Mile Island (seller)
The Washington Post·4 months ago
Last updated 2026-03-14
View all 10 articles