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CAISO · California · Public-record retrospective

Antelope Substation 66 kV: interconnection queue history

1,120 MW filed. 90 MW built.

GridVision AI ResearchUpdated

Fourteen interconnection requests since 2008: 5 reached commercial operation and 9 withdrew.

Built
5
Withdrawn
9
Still in queue
0

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
2008-03-11PV-11 (FKA PV ROSAMOND-DEL SUR)Solar100 MWWithdrawn2011-03-23
2008-03-11PV-3 (FKA PV ANTELOPE-DEL SUR)Solar100 MWWithdrawn2011-03-23
2010-02-01PV-11 EXPANSIONSolar22 MWWithdrawn2010-03-26
2010-02-01PV-03 EXPANSIONSolar23 MWWithdrawn2010-03-26
2010-10-20WESTERN ANTELOPE DRY RANCHSolar10 MWBuilt2016-12-01 · 6.1 yrs
2010-12-15CENTRAL ANTELOPE SOLAR (FKA WESTERN ANTELOPE BLUE SKY RANCH B)Solar20 MWBuilt2016-05-06 · 5.4 yrs
2010-12-15SIERRA SOLAR GWX (FKA SILVER SUN GREENWORKS)Solar20 MWBuilt2015-11-30 · 5.0 yrs
2010-12-15WESTERN ANTELOPE BLUE SKY RANCH ASolar20 MWBuilt2014-11-14 · 3.9 yrs
2011-03-31NORTH LANCASTER SOLAR (FKA WESTERN ANTELOPE DRY RANCH ADDITION)Solar20 MWBuilt2016-12-31 · 5.8 yrs
2011-03-31ROYAL SOLAR PROJECTSolar100 MWWithdrawn2012-04-12
2016-05-02CLOVER ENERGY STORAGE PLANTBattery300 MWWithdrawn2020-10-16
2017-05-01MUNZ SOLAR 1Solar + battery90 MWWithdrawn2018-02-28
2020-04-15BOBCAT ENERGY STORAGEBattery75 MWWithdrawn2021-03-05
2023-04-17ANGELES ENERGY STORAGEBattery220 MWWithdrawn2024-12-02

What the record shows

  • 1,030 MW of the 1,120 MW filed here withdrew, and 90 MW reached commercial operation.
  • Completions here took between 3.9 and 6.1 years from request to commercial operation (median 5.4).
  • The largest request filed here, 300 MW (battery), withdrew 4.5 years after filing.
  • Three requests were filed on 2010-12-15; all of them reached operation.
  • Four of the 9 withdrawals came within a year of filing.
  • By technology, the requests here were solar 10, battery 3, solar + battery 1.
  • 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.
  • 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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