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Mainstream and Ocean Winds plan second 500MW ScotWind project

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Mainstream and Ocean Winds plan second 500MW ScotWind project | Windpower Monthly

Mainstream Renewable Power and Ocean Winds – a joint venture between EDP Renewables and Engie – are partnering on a second ScotWind site, of 500MW capacity. Lying east of Shetland island, it would expand Arven’s scale to 2.3GW.

The first, 1.8GW site, was awarded to the partnership as part of the ScotWind leasing process in 2022.

Ocean Winds was also awarded a separate 500MW site and with Mainstream having completed its acquisition of a 50% stake in the holding company, the two sites will now be co-developed.

Early-stage local engagement, meeting with supply chain partners, local authorities and fisheries representatives is under way.

Mainstream and Ocean Winds are also co-developing a 1.2GW floating project in South Korea and are eyeing the upcoming Utsira Nord tender in Norway.

Related Knowledge Center: Offshore wind energy

State of Play

Over the next decade, U.S. offshore wind power is expected to grow from a single 30-megawatt wind farm off Rhode Island to more than 2,000 MW of capacity along the Atlantic Seaboard. There are contracts for wind power off the coasts of Massachusetts, Connecticut, New York, Maryland, New Jersey, Rhode Island, and Virginia.

The National Renewable Energy Laboratory has estimated the United States has over 4,000 gigawatts (GW) of offshore wind potential, enough to power the country four times over.

The growth in part being spurred by state solicitations, including in New York, where then-Gov. Andrew Cuomo (D) set a commitment of 9,000 MW of offshore wind by 2035, and in Connecticut, where in June 2021, Gov. Ned Lamont (D) signed legislation authorizing the construction of 2,000 MW of offshore wind by 2030.

The offshore development is also being driven by an investment tax credit set to end in December 2019 and is equal to 12 percent of expenditures. U.S. Sens. Susan Collins (R-Maine) and Tom Carper (D-Del.) have introduced a bill to extend the tax credit for up to eight years.

The Interior Department has held eight competitive lease sales that resulted in 15 offshore wind leases over 1.7 million acres that has the potential for 21 GW of capacity. In February 2022, the Bureau of Ocean Energy Management completed a bidding process that realized $4.37 billion for 488,000 acres across six lease areas in federal waters off New York and New Jersey.

Projects have also been proposed off the Southeast coast, off California and Hawaii, and for the Great Lakes.

More informationabout Offshore wind energy