Arch 4 (C24-085)

Arch 4 is a 150.0 MW battery interconnection project in Orange, New York with a current status of active. It is proposed to connect at Rock Tavern 345kV Substation.

150.0 MWCapacity
ActiveStatus
GMarket
BatteryTechnology

Project facts

Canonical nameArch 4
Queue IDC24-085
Statusactive
Source status7
MarketG
TechnologyBattery
Capacity150.0 MW
StateNew York
CountyOrange
Point of interconnectionRock Tavern 345kV Substation
Requested (queue) date2024-08-09
Proposed in-service date—
Operational date—
Withdrawn date—
DeveloperTerra-Gen Development Company, LLC
Utility / transmission ownerCHGE

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
2026-07-31new_project—activehigh

Explore related data

Source last checked2026-10-11
Data last materially changed2026-10-11
Page data generated2026-10-11

Provenance: New York ISO — interconnection queue. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.

Follow this project and get an alert when its status, capacity, developer, or schedule changes.

Start tracking with interXdata