Grassy Knoll Solar
20 MW generation in Herkimer, NY · In queue since June 2019 · Proposed COD May 2028
20 MW
Capacity
1
Components
Solar
7y 1m
In Queue
Facility Study
IA Phase
Signed Sep 2022
Queue → IA
3y 3m
IA → COD
5y 8m
Total Duration
3y 3m
Interconnection request submitted to ISO/RTO
NYISO transitioned to a Transitional Cluster Study (TCS) format in 2024.
Typical: >42 months (historical); ~24 months target
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 12–24 months
Proposed COD: 2028-05-01
The Grassy Knoll Solar project is a proposed 20 MW solar generation facility in Herkimer County, New York. Developed by SunEast Grassy Knoll Solar LLC, the project is interconnected to the NYISO grid under queue ID NYISO-885. The project entered the interconnection queue on June 12, 2019, and has a proposed commercial operation date of December 1, 2025. Its interconnection status is currently in the Facility Study phase.
The proposed project is linked to the existing SunEast Grassy Knoll Solar Project operating plant (EIA ID 63863). The point of interconnection is the Watkins Rd - Inghams 115kV line. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
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.
See the full development-risk decomposition for this project.
State
NY
County
Herkimer
Grid Region
NYISO (New York)
Market
ISO/RTO Member
Developer
Grassy Knoll Solar NY LLC
Utility
NM-NG
Entity
NYISO
Service Type
—
Point of Interconnection
Watkins Rd - Inghams 115kV
Data Source
LBNL
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.
See the full risk decomposition + scenarios for this project.
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.
See the full forecast + scenario decomposition for this project.
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.
See the full revenue + DSCR projection for this project.
- ISO / RTO
- NYISO
- Trading Hub
- NYISO Zone E
- Hub Confidence
- MEDIUM
- Nearest Node (Estimated)
- 323673
- POI Substation
- HARDSCRABBLE_WT_PWR
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 Ask reports yet for this entity.
Ask about Grassy Knoll SolarForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
