Millstone Increase (930)

Millstone Increase is a 37.0 MW other interconnection project in New London, Connecticut with a current status of operational. It is proposed to connect at Eversource's Millstone 345 KV switchyard (15G) - no change to existing connection.

37.0 MWCapacity
OperationalStatus
CTMarket
OtherTechnology

Project facts

Canonical nameMillstone Increase
Queue ID930
Statusoperational
Source statusC
MarketCT
TechnologyOther
Capacity37.0 MW
StateConnecticut
CountyNew London
Point of interconnectionEversource's Millstone 345 KV switchyard (15G) - no change to existing connection
Requested (queue) date2019-10-17
Proposed in-service date
Operational date2022-05-26
Withdrawn date
Developer
Utility / transmission ownerISO-NE

Cross-source records

This project is also observed in: Lawrence Berkeley National Laboratory — Queued Up interconnection dataset. interXdata links these source records without double-counting the project.

What changed

ObservedFieldOld valueNew valueMateriality
2026-08-04new_projectoperationalhigh

Explore related data

Source last checked2026-08-04
Data last materially changed2026-08-04
Page data generated2026-08-28

Provenance: isone-irtt. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.

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