Marathon BESS
BetaActiveBatteryNYISOLBNL + Live
135 MW storage in Suffolk, NY · In queue since September 2024 · Proposed COD October 2029
135 MW
Capacity
1
Components
Battery
1y 6m
In Queue
—
IA Status
COD target: 2029
Interconnection Timeline
Total Duration
5y 1m
Pre-Study0%
Queue EntrySep 6, 2024
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 Agreement
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Commercial Operation
Proposed COD: 2029-10-01
Project Details
State
NY
County
Suffolk
Region
NYISO
Developer
Marathon Power
Utility
LIPA
Entity
NYISO
Point of Interconnection
Greenlawn 138kV
Data Source
LBNL + Live
No news available for this project.