Cleanview

Planned solar farms in Washington

Developers have proposed 7 solar farms in Washington with 1.6 GW of capacity, in the grid operators' interconnection queues.

  • Planned7

See operating solar farms in Washington

SeattleSpokaneYakimaWenatcheeQuincy

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

The largest planned solar farms in Washington

Planned, by capacity

#Solar farmExpected onlineCapacity
1Hop Hill Solar Generation and BESS2031500 MW
2Lower Snake Solar Generation BESS2029300 MW
3Royal Slope2027260 MW
4Carriger2028160 MW
5Bluebird Solar2027140 MW
6SR Quincy Valley2026130 MW
7High Top Solar202980 MW

Planned solar farms expected online soonest in Washington

In the next 18 months, soonest first

#Solar farmExpected onlineCapacity
1SR Quincy Valley2026130 MW
2Royal Slope2027260 MW
3Bluebird Solar2027140 MW
The developer behind each project is on paid plans. See plans

How Cleanview tracks solar farms

Operating solar farms come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.

Questions about solar farms in Washington

How many solar farms are planned in Washington?
Developers have proposed 7 solar farms in Washington with 1.6 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.
What is the largest planned solar farm in Washington?
Hop Hill Solar Generation and BESS in Benton County, Washington is the largest planned, at 500 MW. It is expected to come online in 2031.
Who is developing solar farms in Washington?
Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.

More energy trackers for Washington

Planned solar farms in other states

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