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CAISO · California · Public-record retrospective

Vincent Substation 230 kV: interconnection queue history

5,195 MW filed. 188 MW built.

GridVision AI ResearchUpdated

Sixteen interconnection requests since 2006: 2 reached commercial operation, 9 withdrew, and 5 remain active.

Built
2
Withdrawn
9
Still in queue
5

The queue record

Every interconnection request the dataset records at this point of interconnection, in filing order.

Interconnection requests recorded at this point of interconnection, with request date, capacity and outcome.
RequestedProjectTechnologyCapacityOutcome
2006-02-23PALMDALE POWER PLANTGas570 MWWithdrawn2019-07-22
2006-04-05WINDSTAR I ALTERNATEWind + battery120 MWStill in queue
2013-04-30PEARBLOSSOM SOLARSolar9.5 MWBuilt2016-12-29 · 3.7 yrs
2015-04-30PALMDALE ENERGYGas130 MWWithdrawn2019-07-22
2016-05-02SAGEBRUSH SOLAR 2Battery179 MWBuilt2024-09-16 · 8.4 yrs
2018-04-16SAGEBRUSH SOLAR 5Solar223.56 MWWithdrawn2019-04-30
2019-04-15SAGEBRUSH 6 HYBRIDSolar + battery116.01856 MWWithdrawn2020-04-29
2019-04-15HUMIDOR STORAGE 1Battery305 MWStill in queue
2019-04-15FORT TEJON SOLARSolar + battery310.2 MWWithdrawn2021-05-05
2019-04-15UNA LAKE SOLARSolar + battery627 MWWithdrawn2019-07-10
2021-04-15FLEA FLICKER ENERGY STORAGEBattery213.55 MWWithdrawn2024-07-31
2021-04-15MAATHAIBattery256 MWWithdrawn2025-11-18
2021-04-15HUXLEY SOLARSolar + battery335.7 MWWithdrawn2021-10-12
2021-04-15SAGEBRUSH ENERGY STORAGEBattery528 MWStill in queue
2023-04-17RoverBattery206.24 MWStill in queue
2023-04-17Hillside Energy StorageBattery1064.748473 MWStill in queue

What the record shows

  • 2,782 MW of the 5,195 MW filed here withdrew, and 188 MW reached commercial operation.
  • Completions here took between 3.7 and 8.4 years from request to commercial operation (median 6.0).
  • The largest request filed here, 1,065 MW (battery), was filed in 2023 and is still active.
  • Four requests were filed on 2021-04-15; 3 withdrew and 1 remains active.
  • Two of the 9 withdrawals came within a year of filing.
  • By technology, the requests here were battery 7, solar + battery 4, gas 2, solar 2, wind + battery 1.
  • The longest-standing active request here was filed on 2006-04-05.
  • The dataset records this point of interconnection under five spellings, which are combined here.

What a decision record would have to make explicit

  • What separated the requests that reached operation from those that withdrew, such as study results, upgrade assignments or site conditions, is not in the public queue record, so a decision record here would have to carry it as an unknown.
  • Five requests are unresolved, so the outcome counts at this node can still change.
  • The dataset records outcomes and dates, not reasons, so no cause is attributed to any outcome here.

What this does and does not show

This is a reading of a public dataset, not a customer case study: no engagement, customer or client is involved. The dataset records outcomes — what was built, what withdrew, and when — but not why any project withdrew, so no cause is attributed here. Nothing on this page claims GridVision predicted, influenced or would have changed any outcome, and a pattern at one point of interconnection does not generalise to another.

Source: Lawrence Berkeley National Laboratory, Queued Up: 2026 Edition — project-level interconnection queue dataset. Interconnection requests through year-end 2025. Used under CC BY 4.0; attribution to Lawrence Berkeley National Laboratory and GridTracker.

Related points of interconnection

How the CAISO process works today: CAISO interconnection queue. Comparing candidate nodes for a project? Read how to choose a point of interconnection.

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