Naugatuck Avenue Battery Storage
205.32 MW storage in New Haven, CT · In queue since January 2021 · Proposed COD May 2027
205.32 MW
Capacity
1
Components
Battery
5y 6m
In Queue
IA Executed
IA Phase
Signed Oct 2023
Queue → IA
2y 9m
IA → COD
3y 7m
Total Duration
2y 9m
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: 6–18 months
Proposed COD: 2027-05-31
Interconnection Agreement executed with ISO-NE
The Naugatuck Avenue Battery Storage project is a proposed 205.32 MW battery storage project located in New Haven County, Connecticut. The project consists of a single 205.32 MW battery component. It is listed in the ISO-NE interconnection queue as queue ID ISO-NE-1089, with an interconnection queue entry date of January 8, 2021, and a proposed commercial operation date of December 1, 2026. The project's interconnection agreement has been executed.
The Naugatuck Avenue Battery Storage project has been featured in recent news coverage.
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
CT
County
New Haven
Grid Region
ISO New England
Market
ISO/RTO Member
Developer
—
Utility
—
Entity
ISO-NE
Service Type
ERIS
Point of Interconnection
Devon 115 kV open position between 4T and 5T
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.CONNECTICUT
- 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.
Last updated 2026-03-26
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