Houston BESS (ERCOT-25INR0420) — Project Summary

Queue ID
ERCOT-25INR0420
Capacity
227.9 MW
Technology
Battery
Status
active
Location
Harris, TX
Region
ERCOT
Developer
SMT Houston
IA Status
Facility Study

Houston BESS

ERCOT-25INR0420BetaActiveBatteryERCOTLBNL + Live

227.9 MW storage in Harris, TX · In queue since April 2023 · Proposed COD August 2027

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

227.9 MW

Capacity

1

Components

Battery

3y 3m

In Queue

Facility Study

IA Phase

COD target: 2027

Interconnection

Total Duration

4y 4m

Facilities Study50%
Queue EntryApr 7, 2023

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: 2027-08-01

Cross-source intelligence
Beta
High confidence·5 sources·as of 2026-06-01
Expected COD
Jun 2026
Queue date 3+ years staleQueue: 2027-08-01
Developer
SMT Energy
Filed as SMT Houston
Status
Active
Active — construction started May 2025 following $135M financing close, targeting mid-2026 COD
Financing
Secured
$135M financing closed Feb 2025 for 160MW/320MWh project (SMT Houston IV)
Key milestones
Financing closeFeb 26, 2025

SMT Energy secured $135M financing for 160MW/320MWh Houston BESS (SMT Houston IV)

source
GroundbreakingMay 13, 2025

Irby Construction, SMT Energy, and CenterPoint Energy broke ground on 160MW/320MWh battery storage project

source
COD targetJun 14, 2026Most recent

Proposed completion date updated to June 14, 2026 (changed from Sept 2025)

source
About

The Houston BESS project is a proposed 227.9 MW battery storage project located in Harris County, Texas. The developer is SMT Houston. It is currently active in the ERCOT interconnection queue as entry ERCOT-25INR0420, with a queue entry date of April 7, 2023, and a proposed commercial operation date of August 1, 2027. The project's interconnection agreement status is currently in the Facility Study phase.

The project consists of 227.9 MW of battery storage. The point of interconnection is Tap 138 kV LAUDER (#46002) - RITTENHOUSE (#46282) ckt 95. The project has appeared in recent news coverage.

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

Harris

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

SMT Houston

Utility

Entity

ERCOT

Service Type

Point of Interconnection

Tap 138 kV LAUDER (#46002) - RITTENHOUSE (#46282) ckt 95

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.

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