Siemens Gamesa Renewable Energy has announced that it will conditionally supply SG 14-222 Direct Drive offshore wind turbines to the 2.64GW Dominion Energy Coastal Virginia Offshore Wind (CVOW) project. This project feature’s Siemens Gamesa’s latest offshore turbine variant, capable of generating up to 15MW with a 222m rotor.
The precise number of turbines to be deployed is subject to final project site conditions. All turbine installations are expected to be completed by 2026. The agreement is subject to certain conditions, including Dominion Energy’s final investment decision, governmental permitting, and other required approvals.
The project is an important step to help Virginia meet the clean energy goals established by the Virginia Clean Economy Act, which sets a target of 100 per cent clean energy by 2045.
The turbine’s 222m diameter rotor uses the new Siemens Gamesa B108 blades. Each 108m long IntegralBlade is cast in one piece, and the turbine has a swept area of 39,000 m2. This gives the SG 14-222 DD an increase of over 25 per cent in Annual Energy Production compared to the SG 11.0-200 DD offshore wind turbine, rated at 11MW with a 200m rotor. The new offshore turbine features a comparatively low nacelle wight of 500 tonnes. This enables Siemens Gamesa to safely utilise an optimised tower and foundation substructure compared to a heavier nacelle, reducing costs per turbine.
Siemens Gamesa said that it is working with local stakeholders to investigate a potential blade manufacturing facility for these turbines on the East coast of the USA.