Lilliwaup Falls Generating
Lilliwaup Falls Generating is a 1 MW hydroelectric power plant in Mason County, Washington, operated by William G. Reed Jr. EIA-860M lists 7 generating units here. Its units entered service in 1986.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 1.4 MW
- 1.4 MW net summer
- Generating units
- 7
- In service
- 1986
- EIA plant ID
- 50700
Where it is
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- County
- Mason County, Washington
- Coordinates
- 47.4706, -123.1153
- Balancing authority
- BPAT
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- William G. Reed Jr
- Primary energy source
- Hydro
- Technologies
- Conventional Hydroelectric
- Status
- Operating
Lilliwaup Falls Generating: FAQ
- Where is Lilliwaup Falls Generating?
- In Mason County, Washington (WA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Lilliwaup Falls Generating?
- 1 MW of nameplate capacity across 7 units, as of the EIA-860M release for 2026-07.
- Who owns Lilliwaup Falls Generating?
- EIA-860M names William G. Reed Jr as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Lilliwaup Falls Generating LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — William G. Reed Jr here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Lilliwaup Falls Generating LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Lilliwaup Falls Generating still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.