Interconnection queue data
California interconnection queue
2,830 interconnection requests have been filed at points of interconnection in California since 2000, totalling 680 GW. Of that capacity, 4.6% reached commercial operation and 76.0% withdrew.
GridVision AI ResearchPublished Updated
Headline figures
- 680 GW
- of capacity requested in California since 2000
- 4.6%
- of it reached commercial operation; 76.0% withdrew
- 378 GW
- filed in the last six years (1,149 requests), of which 27.6% is still in the queue
Which markets California requests sit in
A state is a location, not a market. Requests at California 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 |
|---|---|---|---|---|---|
| CAISO | 2,644 | 633 GW | 4.7% | 78.8% | |
| West | 186 | 47 GW | 2.3% | 38.6% |
Process pages: CAISO.
By resource type
| Resource | Requests | Capacity filed | Reached operation | Withdrew | Outcome by capacity |
|---|---|---|---|---|---|
| Battery | 816 | 200 GW | 2.2% | 71.0% | |
| Solar | 784 | 111 GW | 6.1% | 88.9% | |
| Hybrid | 722 | 224 GW | 3.8% | 66.9% | |
| Gas | 233 | 67 GW | 12.5% | 86.4% | |
| Wind | 195 | 63 GW | 4.2% | 90.5% | |
| Other | 80 | 14 GW | 2.4% | 77.3% |
Hybrid covers requests the dataset records as a combination, such as solar plus battery.
By year filed
- 20007 GW
- 2001950 MW
- 2002733 MW
- 20031 GW
- 20046 GW
- 20056 GW
- 200619 GW
- 200734 GW
- 200835 GW
- 20095 GW
- 201019 GW
- 201124 GW
- 201213 GW
- 20138 GW
- 201410 GW
- 201516 GW
- 201620 GW
- 201713 GW
- 201821 GW
- 201942 GW
- 202039 GW
- 202197 GW
- 20229 GW
- 2023228 GW
- 20244 GW
- 20251 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Recent years are unsettled: requests filed in the last few years may still be built or withdrawn.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
- Whirlwind Substation 230kV23 requests in the dataset
- Colorado River Substation 230kV16 requests in the dataset
- Windhub Substation 230kV16 requests in the dataset
- LUGO 500 kV16 requests in the dataset
- MANNING 500 kV16 requests in the dataset
- Imperial Valley Substation 230 kV15 requests in the dataset
Names are as the dataset records them, so spelling variants of one station can appear separately.
Published retrospectives in California
- Colorado River Substation 230 kV (CAISO)
- Windhub Substation 230 kV (CAISO)
- Whirlwind Substation 230 kV (CAISO)
- Otay Mesa Switchyard 230 kV (CAISO)
- Gates Substation 230 kV (CAISO)
- Kramer Substation 230 kV (CAISO)
- Devers Substation 230 kV (CAISO)
- Victor Substation 230 kV (CAISO)
- Stroud switching station 70 kV (CAISO)
- Manning 500 kV (CAISO)
- Birds Landing 230 kV (CAISO)
- Lugo 500 kV (CAISO)
- Mendota Substation 115 kV (CAISO)
- Pisgah Substation 230 kV (CAISO)
- Vincent Substation 230 kV (CAISO)
- Antelope Substation 66 kV (CAISO)
- Arco 230 kV (CAISO)
- Highwind Substation 230 kV (CAISO)
- Tranquility 230 kV (CAISO)
- Trout Canyon Substation 230 kV (CAISO)
- Los Banos 500 kV (CAISO)
- Mohave Substation 500 kV (CAISO)
- Arco Substation 70 kV (CAISO)
- Mira Loma Substation 230 kV (CAISO)
- Quinto Switching Station 230 kV (CAISO)
- Borrego Substation 69 kV (CAISO)
- Lamont Substation 115 kV (CAISO)
- Los Banos 230 kV (CAISO)
- Delaney Substation 500 kV (CAISO)
- Red Bluff Substation 500 kV (CAISO)
- Valley Switch 230 kV (CAISO)
- Antelope 230 kV (CAISO)
- Boulevard East Substation 138 kV (CAISO)
- Schindler Substation 115 kV Bus (CAISO)
- Sloan Canyon 230 kV (CAISO)
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 2026-09-18.
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