Abstract
This report supplements the Sunrise Wind Construction and Operations Plan.
Sunrise Wind, a 50/50 joint venture between Orsted North America Inc. (Orsted NA or Orsted) and Eversource Investment LLC (Eversource), proposes to construct, own, and operate the Sunrise Wind Farm (SRWF) and the Sunrise Wind Export Cable (SRWEC) (collectively, the Sunrise Wind Farm Project or Project). The offshore wind farm portion of the Project (i.e., the SRWF) will be located on the Outer Continental Shelf (OCS) in the designated Bureau of Ocean Energy Management (BOEM) Renewable Energy Lease Area OCS-A 0487 (Lease Area). The Lease Area is approximately 18.9 statute miles (mi) (16.4 nautical miles [nm], 30.4 kilometers [km]) south of Martha’s Vineyard, Massachusetts, approximately 30.5 mi (26.5 nm, 48.1 km) east of Montauk, New York (NY), and 16.7 mi (14.5 nm, 26.8 km) from Block Island, Rhode Island.
The information and analysis presented in this report was developed in support of a new individual National Pollutant Discharge Elimination System (NPDES) permit under Section 402 of the Clean Water Act (CWA). A NPDES individual permit application for the operation of the Offshore Converter Station (OCS-DC) located in the Lease Area was submitted to the United States Environmental Protection Agency (EPA) on December 1, 2021.
The purpose of the OCS-DC is to collect the medium voltage alternating current (AC) power generated by the wind turbine generators (WTGs), convert it to Direct Current (DC), and transform it to higher voltage for transmission via the SRWEC. T