In 2023, the total new installed capacity of offshore wind turbines in the UK reached 15.0 GW, while the new installed capacity of onshore wind turbines reached 18.0 GW.
In the offshore wind turbine market, three major manufacturers (Vestas, Siemens Gamesa, and GE Renewable Energy) collectively supplied and installed 13.5 GW of this capacity.
In contrast, the onshore wind turbine market features a broader range of suppliers. The table below shows the market shares of different manufacturers and operators by volume in the UK onshore market in 2023.
| Supplier / Operator | Market Share (%) |
|---|---|
| Nordex Group | 28% |
| Independent Local Installers | 25% |
| Vestas | 20% |
| Siemens Gamesa | 14% |
| Enercon | 9% |
| Goldwind | 4% |
Explain, using relevant calculations, whether the offshore wind turbine manufacturing market was more concentrated or less concentrated than the onshore wind turbine manufacturing market in 2023.