Austin Bayou Storage III
156.6 MW generation in Brazoria, TX · In queue since March 2023 · Proposed COD June 2027
156.6 MW
Capacity
1
Components
Battery
3y 4m
In Queue
IA Executed
IA Phase
Signed Feb 2025
Queue → IA
1y 11m
IA → COD
2y 4m
Total Duration
1y 11m
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: 18–30 months
Proposed COD: 2027-06-01
Austin Bayou Storage III is a proposed 150.68 MW battery storage project located in Brazoria County, Texas. The project, under development by Austin Bayou Solar, LLC, is interconnected within the ERCOT region and entered the interconnection queue as ERCOT-25INR0237 on March 8, 2023. The current interconnection status is listed as Facility Study, with a proposed commercial operation date of June 1, 2027.
The project consists entirely of battery storage, with a total capacity of 150.68 MW. The point of interconnection is Tap 345kV 43180 Savanna - 43020 Seabreeze Ckt 27 AND 43035 Oasis - 43060 Speedway Ckt 18. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
Realization risk from now to commercial operation — financing close, EPC and tax-equity counterparty mix, and COD probability vs the proposed date. The diligence view that determines whether the deal actually closes. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
TX
County
Brazoria
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Austin Bayou Solar, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 345 kV Savana 43180 to Seabreeze 43020 - Ckt 27
Data Source
LBNL + Live
Composite operating-phase risk view — what this asset's risk profile will look like once it commissions. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.
See the full risk decomposition + scenarios for this project.
Forward generation outlook — first-year production estimate and 10-year P50 trajectory, with probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
See the full forecast + scenario decomposition for this project.
Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. First-year DSCR, 10-year cashflow, and counterparty exposure across price and policy scenarios. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this project.
- 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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Ask about Austin Bayou Storage IIIForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
