St. Lawrence Infrastructure 1 (NYISO-1742) — Project Summary

Queue ID
NYISO-1742
Capacity
860 MW
Technology
Other
Status
active
Location
St. Lawrence, NY
Region
NYISO
Developer
St. Lawrence Infrastructure, LLC
IA Status

St. Lawrence Infrastructure 1

NYISO-1742BetaActiveLNYISOLive · NYISO

860 MW generation in St. Lawrence, NY · In queue since September 2025

BA: NYISISO/RTO: NYISONERC: NPCCRC: NYIS

860 MW

Capacity

0

Components

10 months

In Queue

IA Status

Interconnection

Total Duration

10 months

Pre-Study0%
Queue EntrySep 2, 2025

Interconnection request submitted to ISO/RTO

TCS Study

NYISO transitioned to a Transitional Cluster Study (TCS) format in 2024.

Typical: >42 months (historical); ~24 months target

Interconnection Agreement

Interconnection agreement not yet executed

Typical: 30–60 days (negotiation)

Commercial Operation

Commercial operation date not yet determined

Cross-source intelligence
Beta
Low confidence·0 sources·as of 2026-06-01
Expected COD
Developer
St. Lawrence Infrastructure, LLC
From queue filing
Status
Active
Active — recently entered NYISO queue (September 2025), no construction or milestone announcements found
Financing
Unannounced
Key milestones
IA executedSep 2, 2025Most recent

Project entered NYISO interconnection queue

About

The St. Lawrence Infrastructure 1 project is a proposed 860 MW generation project located in St. Lawrence County, New York. The project, developed by St. Lawrence Infrastructure, LLC, is listed in the New York Independent System Operator (NYISO) interconnection queue as queue ID NYISO-1742, with a queue entry date of September 2, 2025. The point of interconnection is the NYPA HA-2, 345kV Transmission Line, and the project's technology is listed as "Other" with the detail "L".

The project is currently listed as active in the NYISO queue. The proposed project has appeared in recent news, with 14 news articles covering the development, primarily focusing on industry and regulatory aspects. The utility involved is the New York Power Authority (NYPA).

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

NY

County

St. Lawrence

Grid Region

NYISO (New York)

Market

ISO/RTO Member

Developer

St. Lawrence Infrastructure, LLC

Utility

NYPA

Entity

NYISO

Service Type

Point of Interconnection

NYPA HA-2, 345kV Transmission Line

Data Source

Live · NYISO

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
NYISO
Trading Hub
ZONE D
Hub Confidence
MEDIUM

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.

Insights & Articles (1)Beta

Last updated 2026-03-14

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InfraSure platform

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