- Onshore wind power: on average more than 3 ton/MW
- Offshore wind power: variable depending on the distance to the shore, typical range 4.3 to 5.6 ton/MW
The copper intensity of use (tCu/MW) in wind power systems depends on several factors. Copper use can vary from around 2.5 tCu/MW to more than 8 tCu/MWp. Some of the major factors determining this use are:
- The size of a plant - as with most energy systems, smaller plants have to a higher copper intensity of use.
- The wind generator technology used.
- The connection to the electricity grid.
- The choice of the conductor material, particularly for the cabling and transformers.
Copper can be used in the following components of a wind power system:
- Turbine power converter
- LV cable
- Turbine transformer
- Turbine switchgear and busbar
- Turbine earthing
- Substation transformer
- Substation switchgear and busbar
- Substation earthing
- Lightning protection
- MV array cable (offshore only)
- Export cable (offshore only)
Last update: April 6, 2022