Excelsior Energy Center (NYISO-721) — Project Summary

Queue ID
NYISO-721
Capacity
280 MW
Technology
Solar
Status
active
Location
Genesee, NY
Region
NYISO
Developer
Excelsior Energy Center, LLC
IA Status
System Impact Study

Excelsior Energy Center

NYISO-721BetaActiveSolarNYISOLBNL

280 MW generation in Genesee, NY · In queue since June 2018 · Proposed COD November 2026

BA: NYISISO/RTO: NYISONERC: NPCCRC: NYIS

280 MW

Capacity

1

Components

Solar

8y 1m

In Queue

System Impact Study

IA Phase

Signed Jan 2021

Status
Latest milestoneconstruction start · 2025-04-03TheDailyNewsOnline.com · 2025-03-22
Interconnection

Queue → IA

2y 7m

IA → COD

5y 10m

Total Duration

2y 7m

Construction25%
Queue EntryJun 7, 2018

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 AgreementJan 22, 2021

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 12–24 months

Commercial Operation

Proposed COD: 2026-11-01

Cross-source intelligence
Beta
Medium confidence·2 sources·as of 2026-06-01
Expected COD
Nov 2026
From queue filing
Developer
Excelsior Energy Center, LLC
From queue filing
Status
Active
Active — construction starting April 2025, state siting approval secured 2022
Financing
Unannounced
Key milestones
Permit approvedApr 2022

NY State Board on Electric Generation Siting and the Environment approval granted

source
GroundbreakingApr 3, 2025

Construction start scheduled

source
COD targetNov 2026Most recent

LBNL proposed commercial operation date

source
Project lifecycle
as of 2025-03-22
PhaseConstructionTheDailyNewsOnline.com · 2025-03-22
OperationalNoTheDailyNewsOnline.com · 2025-03-22
TechnologySolarTheDailyNewsOnline.com · 2025-03-22
DeveloperExcelsior±TheDailyNewsOnline.com · 2025-03-22
GroundbreakingAnnouncedTheDailyNewsOnline.com · 2025-03-22
Permit decisionGrantedThe Well News · 2022-04-07
About

The Excelsior Energy Center is a proposed 280 MW solar generation project located in Genesee County, New York. Developed by Excelsior Energy Center, LLC, the project is interconnected to the NYISO grid at the Dysinger - N. Rochester 345kV point of interconnection. It entered the NYISO interconnection queue as queue ID NYISO-721 on June 7, 2018, and has a proposed commercial operation date of November 1, 2026. The project's interconnection status is currently in the System Impact Study phase.

The proposed project is linked to the existing Excelsior Energy Center operating plant (EIA plant ID 68507). The Excelsior Energy Center has been the subject of recent news coverage, with four articles related to regulatory, development, and industry topics.

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

Genesee

Grid Region

NYISO (New York)

Market

ISO/RTO Member

Developer

Excelsior Energy Center, LLC

Utility

NYPA

Entity

NYISO

Service Type

Point of Interconnection

Dysinger - N. Rochester 345kV

Data Source

LBNL

DeveloperExcelsiorTheDailyNewsOnline.com · 2025-03-22
ApplicantExcelsior Energy Center LLC±WGRZ · 2022-04-12
AgencyNew York State Board on Electric Generation Siting and the EnvironmentWGRZ · 2022-04-12
RulingApprovalWGRZ · 2022-04-12
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
NYISO Zone B
Hub Confidence
UNKNOWN

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

View all articles
InfraSure platform

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