The onshore substation electrical system converts the power generated from the wind farm into a form that can be integrated into the wider transmission network.
What it costs
About £26 million for a 450 MW floating offshore wind farm, considering an HVAC system.
Who supplies them
GE Grid Solutions, Hitachi Energy and Siemens Energy.
The onshore substation has the same types of electrical system components as the offshore substation. This typically includes switchgear, transformers (if HVAC), converters (if HVDC), reactive power compensation and earthing systems.