Diaz BESS
241.48 MW storage in Cameron, TX · In queue since May 2023 · Proposed COD November 2027
241.48 MW
Capacity
1
Components
Battery
3 years
In Queue
Facility Study
IA Status
COD target: 2027
Total Duration
4y 6m
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: 2027-11-18
The Diaz BESS project is a proposed 241.48 MW battery storage project located in Cameron County, Texas. Developed by BRP Blue Topaz 10, LLC, the project consists entirely of battery storage. It is currently active in the ERCOT interconnection queue as entry ERCOT-25INR0386, with a queue entry date of May 22, 2023.
The proposed commercial operation date (COD) for the Diaz BESS project is November 18, 2027. Its interconnection status is currently in the Facility Study phase, and its point of interconnection (POI) is the 8950 Olmito 138kV substation. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
State
TX
County
Cameron
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
BRP Blue Topaz 10, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
8950 Olmito 138kV
Data Source
LBNL + Live
- ISO / RTO
- ERCOT
- Trading Hub
- HB_SOUTH
- Hub Confidence
- MEDIUM
- Nearest Node (Estimated)
- OLMITO_RN
- POI Substation
- Olmito 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.
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