Upstream BESS
461.6 MW storage in Johnson, TX · In queue since March 2023 · Proposed COD May 2026
461.6 MW
Capacity
1
Components
Battery
3y 2m
In Queue
Facility Study
IA Status
COD target: 2026
Total Duration
3y 2m
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: 2026-05-29
The Upstream BESS project is a proposed 461.6 MW battery storage project located in Johnson County, Texas. Developed by Upstream Storage LLC, the project is currently active in the ERCOT interconnection queue as entry ERCOT-26INR0106, with a queue entry date of March 27, 2023. The proposed commercial operation date is May 29, 2026, and the project's interconnection agreement status is currently in the Facility Study phase.
The project consists entirely of battery storage, with a total capacity of 461.6 MW. The point of interconnection is the 1902 Johnson Switch. The Upstream BESS project has appeared in recent news coverage regarding energy storage developments in Texas.
Generated from interconnection queue and public data sources
State
TX
County
Johnson
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Upstream Storage LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
1902 Johnson Switch
Data Source
LBNL
- 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.
