Zeus Armstrong BESS
421.5 MW storage in Armstrong, TX · In queue since March 2024 · Proposed COD April 2028
421.5 MW
Capacity
1
Components
Battery
2y 2m
In Queue
Facility Study
IA Status
COD target: 2028
Total Duration
4y 1m
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: 2028-04-17
The Zeus Armstrong BESS project is a proposed 421.5 MW battery storage project located in Armstrong County, Texas. The developer is Armstrong BESS, LLC. It is interconnected within the ERCOT region under queue ID ERCOT-25INR0587, with an interconnection queue entry date of March 22, 2024. The proposed commercial operation date is April 17, 2028, and the project's interconnection agreement status is currently in the Facility Study phase.
The project consists entirely of battery storage, totaling 421.5 MW. The point of interconnection is Tap 345KV 23900 ALIBATES - 23914 TULECNYN. The project is currently listed as active in the interconnection queue.
Generated from interconnection queue and public data sources
State
TX
County
Armstrong
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Armstrong BESS, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 345KV 23900 ALIBATES - 23914 TULECNYN
Data Source
LBNL + Live
- ISO / RTO
- ERCOT
- Trading Hub
- HB_WEST
- Hub Confidence
- MEDIUM
- POI Substation
- Alibates Substation
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.
