Arc Energy Storage
204.5 MW storage in Lamar, TX · In queue since July 2023 · Proposed COD April 2028
204.5 MW
Capacity
1
Components
Battery
2y 10m
In Queue
Facility Study
IA Status
COD target: 2028
Total Duration
4y 9m
Interconnection request submitted to ISO/RTO
ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.
Typical: 18–30 months (fastest major ISO)
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2028-04-18
The Arc Energy Storage project is a proposed 204.5 MW battery storage project located in Lamar County, Texas. Developed by Paris Energy Storage, LLC, the project is interconnected within the ERCOT region under queue ID ERCOT-26INR0184. It entered the interconnection queue on July 31, 2023, with a proposed commercial operation date of April 18, 2028. The project's interconnection status is currently in the Facility Study phase.
The Arc Energy Storage project has been featured in recent news coverage related to the energy industry, grid infrastructure, and business deals.
Generated from interconnection queue and public data sources
State
TX
County
Lamar
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Paris Energy Storage, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 138kV 1693 Paris Switch - 11806 ENLOE T8
Data Source
LBNL + Live
- ISO / RTO
- ERCOT
- Trading Hub
- HB_NORTH
- Hub Confidence
- LOW
This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.
Last updated 2026-03-26
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