Hornsea 1 (Hornsea Project One) is a large-scale offshore wind farm in the southern North Sea located roughly 120 km off the Yorkshire coast. At about 1.218 GW nameplate capacity it was the first offshore wind farm to exceed 1 GW and, on completion, became the world's largest operational offshore...
Blackridge Research lists a 'Project Value' of USD 4.54 billion (converted here to 4,540 million USD). This appears to be an estimated project cost; no price base year or publication...