Project Overview


National Grid will build, own and operate the majority of the new electrical infrastructure needed to connect the Block Island Wind Farm to the electric grid on Block Island and mainland Rhode Island. This project, sea2shore: The Renewable Link, is a reflection of the company’s commitment to bringing clean, renewable energy to customers.

sea2shore will deliver electricity generated by the to-be-built Block Island Wind Farm to National Grid where it will be distributed to electric customers. With an anticipated 30 MW of generation, the wind farm is expected to supply far more than Block Island’s entire current demand of approximately 4 MW. The excess electricity will be transmitted to mainland Rhode Island via a bi-directional submarine cable between Block Island and Scarborough State Beach in Narragansett, which will ultimately be tied into the state’s electric grid.

Project components (including maps) are described below. For an illustrated version of the project overview map, please click here.

Ocean (Click for map):

  • Approximately 20 miles of 34.5kV submarine cable from Block Island Town Beach to Scarborough State Beach (Narragansett)

Narragansett/South Kingstown (Click for map):

    • New 34.5kV substation, called Dillon’s Corner Substation, at existing RIDOT maintenance facility (at the intersection of Rt. 108 and Rt. 1)
    • Approximately 3.5 miles of underground cable from Scarborough State Beach to new Dillon’s Corner Substation via Burnside Road and Rt. 108
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    • Additional 0.75 miles of underground cable from new Dillon’s Corner Substation to existing Wakefield Substation (intersection of Rt. 108 and Old Tower Hill Rd in South Kingstown)
    • Upgrades to existing Wakefield substation and West Kingston substation (Great Neck Rd., South Kingstown) inside the fence line
    • Improvements to public facilities at Scarborough State Beach

Block Island (Click for map):

  • New 34.5kV substation on existing Block Island Power Company (BIPCo) property
  • Approximately 0.8 miles of underground cable from Block Island Town Beach to the BIPCo property via Corn Neck Road and Beach Avenue and 0.2 miles of overhead line on BIPCo property

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