Grissom Solar
4.99 MW generation in Sullivan, NH · In queue since March 2022 · Proposed COD December 2026
4.99 MW
Capacity
1
Components
Solar
4y 4m
In Queue
IA Executed
IA Phase
Signed Jan 2025
Queue → IA
2y 10m
IA → COD
1y 11m
Total Duration
2y 10m
Interconnection request submitted to ISO/RTO
ISO-NE is transitioning to cluster studies per FERC Order 2023.
Typical: 25–30 months (recent)
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 12–24 months
Proposed COD: 2026-12-30
Grissom Solar is a proposed 4.99 MW solar generation project located in Sullivan County, New Hampshire. The project is in the ISO-NE interconnection queue as entry ISO-NE-1226, with a queue entry date of March 4, 2022, and a proposed commercial operation date of May 15, 2025. The interconnection agreement for the project has been executed.
The point of interconnection is a 46 kV subtransmission line between GMP Maple Avenue B-42 and the 4402 breaker at the GMP/NGRID demarc considered at Bellows Falls.
Generated from interconnection queue and public data sources
Realization risk from now to commercial operation — financing close, EPC and tax-equity counterparty mix, and COD probability vs the proposed date. The diligence view that determines whether the deal actually closes. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
NH
County
Sullivan
Grid Region
ISO New England
Market
ISO/RTO Member
Developer
—
Utility
—
Entity
ISO-NE
Service Type
ERIS
Point of Interconnection
46 kV subtransmission line between GMP Maple Avenue B-42 and the 4402 breaker at the GMP/NGRID demarc considered at Bellows Falls
Data Source
LBNL + Live
Composite operating-phase risk view — what this asset's risk profile will look like once it commissions. 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 — first-year production estimate and 10-year P50 trajectory, with probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios. 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. First-year DSCR, 10-year cashflow, and counterparty exposure across price and policy scenarios. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this project.
- ISO / RTO
- ISO-NE
- Trading Hub
- .Z.NEWHAMPSHIRE
- 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.
No Ask reports yet for this entity.
Ask about Grissom SolarForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
