Interconnection queue data
Connecticut interconnection queue
228 interconnection requests have been filed at points of interconnection in Connecticut since 2000, totalling 35 GW. Of that capacity, 14.7% reached commercial operation and 83.3% withdrew.
GridVision AI ResearchPublished Updated
Headline figures
- 35 GW
- of capacity requested in Connecticut since 2000
- 14.7%
- of it reached commercial operation; 83.3% withdrew
- 18 GW
- filed in the last six years (111 requests), of which 3.8% is still in the queue
Which markets Connecticut requests sit in
A state is a location, not a market. Requests at Connecticut 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 |
|---|---|---|---|---|---|
| ISO-NE | 227 | 35 GW | 14.8% | 83.3% | |
| NYISO | 1 | 20 MW | 0.0% | 100.0% |
By resource type
| Resource | Requests | Capacity filed | Reached operation | Withdrew | Outcome by capacity |
|---|---|---|---|---|---|
| Battery | 59 | 9 GW | 0.0% | 96.0% | |
| Solar | 52 | 1 GW | 21.1% | 56.7% | |
| Hybrid | 44 | 10 GW | 23.2% | 76.8% | |
| Gas | 41 | 5 GW | 31.4% | 68.6% | |
| Other | 22 | 2 GW | 61.5% | 38.5% | |
| Wind | 10 | 9 GW | 0.0% | 100.0% |
Hybrid covers requests the dataset records as a combination, such as solar plus battery.
By year filed
- 200049 MW
- 2001620 MW
- 2002906 MW
- 2003346 MW
- 200467 MW
- 2005142 MW
- 20061 GW
- 20072 GW
- 20081 GW
- 200986 MW
- 20111 GW
- 2012691 MW
- 2013510 MW
- 2014870 MW
- 2015442 MW
- 20163 GW
- 2017471 MW
- 20183 GW
- 20193 GW
- 20203 GW
- 20211 GW
- 2022951 MW
- 20235 GW
- 20244 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Recent years are unsettled: requests filed in the last few years may still be built or withdrawn.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
- UI Singer Substation4 requests in the dataset
- kV line # 3213 requests in the dataset
- Eversource North Simsbury3 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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