The Seacoast Reliability Project involves a new 115-kV transmission line to address reliability concerns around the Portsmouth region, NH. The new line will travel approximately 13 miles between the Madbury and Portsmouth substations. The line will be structured to run both above ground and below Little Bay.
| Project Sponsor | Line Miles | Voltage (kV) | From State | To State | Year in Service |
|---|---|---|---|---|---|
| Eversource Energy | 13 | 115 | NH | NH | 2020 |
| Estimated Costs ($M) | Voltage Type | Project Status | Project Group | Origin Point | Destination Point |
| 84 | Underground and Aboveground | Under Construction | Madbury | Portsmouth SS | |
| Interstate | Build Start | NERC | ISO/RTO | Country | Project Partners |
| No | NPCC | ISONE | US |
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