Myrtle Solar

ERCOT-19INR0041BetaActiveSolarERCOTLBNL + Live

321.2 MW generation in Brazoria, TX · In queue since March 2017 · Proposed COD June 2026

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

321.2 MW

Capacity

Components

Solar

9y 4m

In Queue

IA Executed

IA Phase

Signed Nov 2019

Status

as of 2y 8m ago

Latest milestoneCOD achieved · 2023-11-01PR Newswire · 2023-11-01

Interconnection

Queue → IA

2y 8m

IA → COD

6y 7m

Total Duration

2y 8m

Schedule

0 months past proposed COD

Construction75%

Queue EntryMar 15, 2017

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 13, 2019

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 12–24 months

Commercial Operation

Proposed COD: 2026-06-30

Cross-source intelligence

Beta

High confidence·7 sources·as of 2026-06-01

Expected COD

2023-10-24

Queue date 3+ years staleQueue: 2026-06-30

Developer

TotalEnergies

Filed as Myrtle Solar, LLC

Status

Online

Online — commercial operations began October 24, 2023. 380 MW solar + 255 MWh battery storage operational in ERCOT.

Financing

Secured

Financing secured prior to 2023 COD. Project fully operational with power purchase agreements including Kilroy Realty and TotalEnergies' own Gulf Coast production plants.

Key milestones

IA executedNov 13, 2019

Interconnection Agreement executed per LBNL queue data

source

COD targetOct 24, 2023Most recent

TotalEnergies started commercial operations of 380 MW Myrtle Solar with 255 MWh battery storage

source

Project lifecycle

as of 2023-11-01

PhaseOnlinePR Newswire · 2023-11-01

OperationalYesPR Newswire · 2023-11-01

TechnologyHybridPR Newswire · 2023-11-01

DeveloperTotalEnergiesPR Newswire · 2023-11-01

PPA offtakerKilroy RealtyPR Newswire · 2023-11-01

COD achievedReportedPR Newswire · 2023-11-01

About

Myrtle Solar is a proposed solar generation project located in Brazoria County, Texas, with a total capacity of 321.2 MW. The developer is Myrtle Solar, LLC. This project is listed in the ERCOT interconnection queue as entry ERCOT-19INR0041, with a queue entry date of March 15, 2017, and a proposed commercial operation date of June 30, 2026. The Interconnection Agreement (IA) has been executed as of November 13, 2019.

The project is linked to the existing operating plant named Myrtle Solar, LLC (EIA plant ID 66910). Recent news coverage of the project includes 14 articles related to industry, grid, development, and regulatory topics.

Generated from interconnection queue and public data sources

ERCOT Queue EIA Plant Profile

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

County

Brazoria

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

Myrtle Solar, LLC

Utility

—

Entity

ERCOT

Service Type

—

Point of Interconnection

42110 Angleton 138kV

Data Source

LBNL + Live

DeveloperTotalEnergiesPR Newswire · 2023-11-01

CompanyTotal EnergiesABC13 Houston · 2025-04-24

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_HOUSTON
Hub Confidence: HIGH
Nearest Node (Estimated): MYR_ALL

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.

Linked EIA Plant

Myrtle Solar, LLCEIA 66910

High match82% confidence

View Plant

Insights & Articles (2)Beta