Technology Status - NET Nowak Energie & Technologie AG

150
Table 45
Average Investment Costs of an On-land Wind Turbine (600 kW)
€ 2000 /kW
Machine frame, including ring 52.7
Blades 123.8
Hub, including main shaft 56.3
Gear, including clutch 156.0
Generator/controller 85.0
Tower, including painting 112.5
Hydraulics, including hoses 22.5
Yaw gear 16.9
Nacelle cover 32.2
Insulation/cables, etc. 26.0
Estimated assembly cost 22.5
Total machine cost 715
Civil engineering infrastructure and grid connection 185
Total investment cost 900
Source: DRKW.
Investment costs differ considerably between on-land and offshore
applications in both relative and absolute terms. For offshore
installations, the foundation amounts to one-third (or more) of turbine
costs. Typical turnkey installation costs are now in the range of USD
1,100–2,000 per kW for offshore wind turbines and farms, i.e. 35% to
100% higher than for on-land installations. The investment costs for the
Middelgrunden offshore wind farm in Denmark (see Table 46) were €
1,233 per kW, but costs are often higher due to construction and
interconnection issues. The relative investment costs for offshore and onland
wind turbines also differ. For on-land, turbines account for 75-80% of
the total investment, with the remaining 20% to 25% related to civil
engineering, infrastructure and grid connection. In the case of the
Middelgrunden wind farm, turbines accounted for 55% of the total
investment, and foundations accounted for 19%.
WIND POWER X7