Purple Sage BESS 1
156 MW storage in Collin, TX · In queue since March 2023 · Proposed COD May 2027
156 MW
Capacity
1
Components
Battery
3y 2m
In Queue
IA Executed
IA Status
Signed Oct 2024
Queue → IA
1y 7m
IA → COD
2y 7m
Total Duration
1y 7m
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 executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 6–18 months
Proposed COD: 2027-05-30
Purple Sage BESS 1 is a proposed 156 MW battery storage project located in Collin County, Texas. The project, developed by Purple Sage, LLC, is interconnected within the ERCOT region under queue ID ERCOT-25INR0391. The project entered the interconnection queue on March 8, 2023, with a proposed commercial operation date of May 30, 2027.
The project's Interconnection Agreement (IA) has been executed as of October 11, 2024. The point of interconnection (POI) is the Anna 345 kV Bus# 2373. The project has appeared in recent news.
Generated from interconnection queue and public data sources
State
TX
County
Collin
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Purple Sage, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Anna 345 kV Bus# 2373.
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.
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