Interconnection queue data
Washington interconnection queue
769 interconnection requests have been filed at points of interconnection in Washington since 2000, totalling 145 GW. Of that capacity, 3.7% reached commercial operation and 66.6% withdrew.
GridVision AI ResearchPublished Updated
Headline figures
- 145 GW
- of capacity requested in Washington since 2000
- 3.7%
- of it reached commercial operation; 66.6% withdrew
- 75 GW
- filed in the last six years (344 requests), of which 48.1% is still in the queue
Which markets Washington requests sit in
A state is a location, not a market. Requests at Washington points of interconnection are studied by the market that runs the queue there, and the process differs between them.
| Market | Requests | Capacity filed | Reached operation | Withdrew | Outcome by capacity |
|---|---|---|---|---|---|
| West | 769 | 145 GW | 3.7% | 66.6% |
By resource type
| Resource | Requests | Capacity filed | Reached operation | Withdrew | Outcome by capacity |
|---|---|---|---|---|---|
| Wind | 214 | 40 GW | 7.8% | 75.4% | |
| Hybrid | 158 | 36 GW | 0.2% | 47.1% | |
| Solar | 140 | 14 GW | 1.2% | 63.7% | |
| Battery | 119 | 23 GW | 0.0% | 60.7% | |
| Gas | 77 | 27 GW | 5.8% | 88.1% | |
| Other | 61 | 6 GW | 6.6% | 56.5% |
Hybrid covers requests the dataset records as a combination, such as solar plus battery.
By year filed
- 20002 GW
- 200118 GW
- 20021 GW
- 2003864 MW
- 20042 GW
- 20052 GW
- 20064 GW
- 20077 GW
- 20086 GW
- 20091 GW
- 20102 GW
- 20111 GW
- 20122 GW
- 2013489 MW
- 2014161 MW
- 2015664 MW
- 20162 GW
- 20173 GW
- 20188 GW
- 20195 GW
- 20206 GW
- 202112 GW
- 202216 GW
- 202330 GW
- 20245 GW
- 20255 GW
Recent years are unsettled: requests filed in the last few years may still be built or withdrawn.
Points of interconnection with the most requests
- Central Ferry Substation12 requests in the dataset
- Wallula substation12 requests in the dataset
- Midway-Union Gap transmission line7 requests in the dataset
- Benewah 230kV Station6 requests in the dataset
- Cascade-Rocky Reach 230 kV Line6 requests in the dataset
- Dodge Junction 230 kV Substation6 requests in the dataset
Names are as the dataset records them, so spelling variants of one station can appear separately.
Method and limits
Each request is counted once, at the capacity and status the dataset records for it, and placed in the state the dataset gives for its point of interconnection. Requests missing a state, status, filing year or capacity are left out. The dataset records outcomes and dates, not reasons, so nothing here says why a request withdrew, and no share is a rate to plan against.
For the same record filtered your own way, use the queue explorer; for national tables and time-to-build figures, see queue statistics.
Source: Lawrence Berkeley National Laboratory, Queued Up: 2026 Edition, data file through 2025, CC BY 4.0. Computed September 18, 2026.
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