SPP · South Dakota · Public-record retrospective
Chappelle Creek 345 kV: interconnection queue history
Eight of nine requests withdrew; one reached operation.
GridVision AI ResearchUpdated
Nine interconnection requests since 2016: 1 reached commercial operation and 8 withdrew.
- Built
- 1
- Withdrawn
- 8
- Still in queue
- 0
The queue record
Every interconnection request the dataset records at this point of interconnection, in filing order.
| Requested | Project | Technology | Capacity | Outcome |
|---|---|---|---|---|
| 2016-03-29 | (unnamed) | Wind | 250.24 MW | Built2020-11-23 · 4.7 yrs |
| 2016-10-05 | (unnamed) | Wind | 175 MW | Withdrawn2021-03-12 |
| 2016-11-14 | (unnamed) | Wind | 240 MW | Withdrawn2021-05-14 |
| 2022-08-11 | (unnamed) | Wind | 250 MW | Withdrawn2025-03-06 |
| 2022-08-11 | (unnamed) | Wind | 250 MW | Withdrawn2023-11-30 |
| 2022-08-11 | (unnamed) | Wind | 250 MW | Withdrawn2023-11-30 |
| 2023-10-02 | (unnamed) | Wind | 249 MW | Withdrawn2025-08-25 |
| 2023-10-02 | (unnamed) | Wind | 504 MW | Withdrawn2024-03-28 |
| 2025-03-01 | (unnamed) | Wind | 250 MW | Withdrawn2025-12-07 |
What the record shows
- 2,168 MW of the 2,418 MW filed here withdrew, and 250 MW reached commercial operation.
- The one request that reached operation took 4.7 years from request to commercial operation.
- The largest request filed here, 504 MW (wind), withdrew 0.5 years after filing.
- Three requests were filed on 2022-08-11; all of them withdrew.
- Two of the 8 withdrawals came within a year of filing.
- The dataset records this point of interconnection under three 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
- SPP · TexasTUCO 345 kV7 requests · 3 built · 4 withdrawn · 0 still in queueRead the record
- SPP · OklahomaSweetwater 230 kV5 requests · 4 built · 1 withdrawn · 0 still in queueRead the record
- SPP · OklahomaWoodward EHV 345 kV5 requests · 1 built · 2 withdrawn · 2 still in queueRead the record
- SPP · OklahomaMinco 345 kV16 requests · 7 built · 6 withdrawn · 3 still in queueRead the record
How the SPP process works today: SPP interconnection queue. Comparing candidate nodes for a project? Read how to choose a point of interconnection.