Tanglewood Solar (ERCOT-23INR0054) — Project Summary

Queue ID
ERCOT-23INR0054
Capacity
250.96 MW
Technology
Solar
Status
active
Location
Brazoria, TX
Region
ERCOT
Developer
Brazoria Solar, LLC
IA Status
IA Executed

Tanglewood Solar

ERCOT-23INR0054BetaActiveSolarERCOTLBNL + Live

250.96 MW generation in Brazoria, TX · In queue since July 2020 · Proposed COD April 2026

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

250.96 MW

Capacity

1

Components

Solar

6 years

In Queue

IA Executed

IA Phase

Signed Nov 2022

Interconnection

Queue → IA

2y 4m

IA → COD

3y 5m

Total Duration

2y 4m

Schedule

2 months past proposed COD

Construction75%
Queue EntryJul 10, 2020

Interconnection request submitted to ISO/RTO

Interconnection Study

ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.

Typical: 18–30 months (fastest major ISO)

Interconnection AgreementNov 1, 2022

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 12–24 months

Commercial Operation

Proposed COD: 2026-04-30

Cross-source intelligence
Beta
Medium confidence·5 sources·as of 2026-06-01
Expected COD
2026-04-30
From queue filing
Developer
Brazoria Solar, LLC
Filed as Brazoria Solar I, LLC
Status
Active
Active — IA executed November 2022, interconnection filings ongoing with CenterPoint as of April-May 2025
Financing
Unannounced
Key milestones
IA executedNov 1, 2022

Interconnection Agreement executed with ERCOT

source
COD targetApr 2026Most recent

Expected online April 2026 per queue filing

source
About

Tanglewood Solar is a proposed 250.96 MW solar generation project located in Brazoria County, Texas. The project, developed by Brazoria Solar, LLC, is in the ERCOT interconnection queue as entry ERCOT-23INR0054, with a queue entry date of July 10, 2020. The proposed commercial operation date is March 15, 2026.

The project's interconnection agreement (IA) has been executed as of November 1, 2022. The point of interconnection (POI) is the 345kV Seabreeze Substation. The project has appeared in recent news coverage.

Generated from interconnection queue and public data sources

Development Risk

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.

Available on the InfraSure platform

See the full development-risk decomposition for this project.

P(COD by stated date)
Financing close probability
EPC + tax-equity counterparty
Project Details

State

TX

County

Brazoria

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

Brazoria Solar, LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

345kV Seabreeze Substation

Data Source

LBNL + Live

Risk Analytics

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.

Available on the InfraSure platform

See the full risk decomposition + scenarios for this project.

Climate hazards (8+)
Generation variability (P10/P50/P90)
Offtake + transmission counterparty
Generation Forecast

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.

Available on the InfraSure platform

See the full forecast + scenario decomposition for this project.

10-year P50 forecast
First-year output estimate
Weather + policy scenarios
Financial Forecast

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.

Available on the InfraSure platform

See the full revenue + DSCR projection for this project.

10-year revenue projection
First-year DSCR
Financing close risk
Market Context
Approximate
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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InfraSure platform

Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.