Mill Point Solar

NYISO-1031BetaActiveSolarBatteryNYISOLBNL + Live

250 MW hybrid in Montgomery, NY · In queue since June 2020 · Proposed COD December 2028

BA: NYISISO/RTO: NYISONERC: NPCCRC: NYIS

250 MW

Capacity

Components

Solar

6y 1m

In Queue

System Impact Study

IA Phase

COD target: 2028

Interconnection

Total Duration

8y 6m

Impact Study25%

Queue EntryJun 18, 2020

Interconnection request submitted to ISO/RTO

TCS StudyCurrent

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

Proposed COD: 2028-12-01

Cross-source intelligence

Beta

Medium confidence·2 sources·as of 2026-06-01

Expected COD

2028-12-01

From queue filing

Developer

Repsol

Recent ownership change

Status

Active

Active — permit approval received from NY Office of Renewable Energy Siting in March 2026, facing legal challenge from Montgomery County

Financing

Unannounced

Ownership history

—·ConnectGen→Repsolsource

Key milestones

Permit approvedMar 2026Most recent

NY Office of Renewable Energy Siting approved project permits; Montgomery County filed legal challenge

source

Project lifecycle

as of 2026-03-30

OperationalNoThe Daily Gazette · 2026-03-30

TechnologySolarThe Daily Gazette · 2026-03-30

DeveloperRepsol±The Daily Gazette · 2026-03-30

PPA offtakerNYSERDAThe Daily Gazette · 2024-03-04

Permit decisionContestedThe Daily Gazette · 2026-03-30

About

Mill Point Solar is a proposed 250 MW hybrid solar and battery project located in Montgomery County, New York. Developed by ConnectGen Montgomery County LLC, the project consists of 250 MW of solar generation. It is currently active in the New York Independent System Operator (NYISO) interconnection queue as queue ID NYISO-1031, with an interconnection queue entry date of June 18, 2020. The proposed commercial operation date is December 1, 2028, and the project's interconnection status is currently in the System Impact Study phase.

The proposed project interconnects to the Marcy - New Scotland 345kV point of interconnection. Mill Point Solar has been the subject of recent news coverage, with six articles categorized as regulatory and industry news.

Generated from interconnection queue and public data sources

NYISO Queue

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

County

Montgomery

Grid Region

NYISO (New York)

Market

ISO/RTO Member

Developer

ConnectGen Montgomery County LLC

Utility

NM-NG

Entity

NYISO

Service Type

—

Point of Interconnection

Marcy - New Scotland 345kV

Data Source

LBNL + Live

ApplicantRepsolThe Daily Gazette · 2026-03-30

CompanyConnectGenThe Daily Gazette · 2024-03-04

AgencyNew York Office of Renewable Energy Siting±The Daily Gazette · 2026-03-30

RulingApprovalThe Daily Gazette · 2026-03-30

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 E
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 (4)Beta

Last updated 2026-03-26

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InfraSure platform

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

Mill Point Solar (NYISO-1031) — Project Summary

Mill Point Solar