Elmax Power Station (ERCOT-23INR0345) — Project Summary

Queue ID
ERCOT-23INR0345
Capacity
518.83 MW
Technology
Gas
Status
active
Location
Harris, TX
Region
ERCOT
Developer
Elmax Generating, LLC
IA Status
IA Executed

Elmax Power Station

ERCOT-23INR0345BetaActiveGasERCOTLBNL

518.83 MW generation in Harris, TX · In queue since September 2021 · Proposed COD July 2028

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

518.83 MW

Capacity

1

Components

Gas

4y 8m

In Queue

IA Executed

IA Phase

Signed Feb 2025

Interconnection

Queue → IA

3y 5m

IA → COD

3y 5m

Total Duration

3y 5m

Construction75%
Queue EntrySep 14, 2021

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 AgreementFeb 3, 2025

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 24–48 months

Commercial Operation

Proposed COD: 2028-07-05

About

The Elmax Power Station (TEF- Due Diligence) is a proposed project in Harris County, Texas, being developed by Elmax Generating, LLC. This gas-fired generation project has a total capacity of 518.83 MW. The project is currently active in the ERCOT interconnection queue as entry ERCOT-23INR0345, with a queue entry date of September 14, 2021.

The proposed commercial operation date for the Elmax Power Station is July 5, 2028. Its interconnection status is currently in the Facility Study phase. The point of interconnection is Tap 138 kV Lake Houston (#40820) - Atascocita (#40130) ckt 66.

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

Harris

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

Elmax Generating, LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

Tap 138 kV Lake Houston (#40820) - Atascocita (#40130) ckt 66

Data Source

LBNL

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.

No news available for this project.
InfraSure platform

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