Zeus Armstrong Solar (ERCOT-25INR0586) — Project Summary

Queue ID
ERCOT-25INR0586
Capacity
503.56 MW
Technology
Solar+Battery
Status
active
Location
Armstrong, TX
Region
ERCOT
Developer
Armstrong Solar, LLC
IA Status
Facility Study

Zeus Armstrong Solar

ERCOT-25INR0586BetaActiveSolarBatteryERCOTLBNL + Live

503.56 MW hybrid in Armstrong, TX · In queue since May 2024 · Proposed COD April 2028

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

503.56 MW

Capacity

1

Components

Solar

2y 2m

In Queue

Facility Study

IA Phase

COD target: 2028

Interconnection

Total Duration

3y 11m

Facilities Study50%
Queue EntryMay 20, 2024

Interconnection request submitted to ISO/RTO

Interconnection StudyCurrent

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

Typical: 18–30 months (fastest major ISO)

Interconnection Agreement

Interconnection agreement not yet executed

Typical: 30–60 days (negotiation)

Commercial Operation

Proposed COD: 2028-04-17

Cross-source intelligence
Beta
Low confidence·4 sources·as of 2026-06-01
Expected COD
2028-04-17
From queue filing
Developer
Armstrong Solar, LLC
From queue filing
Status
Active
Active — ercotqueue.com shows 'Construction' stage with 95% build-chance score and Facility Study milestone completed per LBNL
Financing
Unannounced
Key milestones
IA executedMost recent

Facility Study stage per LBNL queue snapshot, no IA executed yet

source
About

The Zeus Armstrong Solar project is a proposed solar generation facility with a total capacity of 509.6 MW. It is located in Armstrong County, Texas, and is being developed by Armstrong Solar, LLC. The project is currently active in the ERCOT interconnection queue as entry ERCOT-25INR0586, with a queue entry date of May 20, 2024.

The proposed commercial operation date for the Zeus Armstrong Solar project is April 17, 2028. Its interconnection status is currently in the Facility Study phase. The point of interconnection is Tap 345KV 23900 AlLIBATES -23914 TULECNYN. The project has appeared in recent news.

Generated from interconnection queue and public data sources

Development Risk

Realization risk before commercial operation — cluster-study clearance, IA timing, counterparty mix, and withdrawal probability vs cohort. The diligence view that determines whether this project is worth pursuing. 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)
Withdrawal probability vs cohort
IA cluster risk
Project Details

State

TX

County

Armstrong

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

Armstrong Solar, LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

Tap 345KV 23900 AlLIBATES -23914 TULECNYN

Data Source

LBNL + Live

Risk Analytics

Composite operating-phase risk view — what this asset's risk profile would look like once it reaches commercial operation. 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 — what this project would produce assuming it reaches commercial operation. Probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios, conditioned on the proposed COD. Powered by InfraSure's generation modeling stack.

Available on the InfraSure platform

See the full forecast + scenario decomposition for this project.

P50 conditioned on COD
Capacity factor vs cohort
Weather + policy scenarios
Financial Forecast

Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. The bankability view that determines whether the deal clears its covenants once online. Powered by InfraSure's asset cashflow stack.

Available on the InfraSure platform

See the full revenue + DSCR projection for this project.

Revenue conditioned on COD
Financing close risk
Cohort DSCR comparison
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.

No insights available for this project.
InfraSure platform

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