Environmental Engineering Reference
In-Depth Information
Table 4-.
Reference Costs for a .5-MW Turbine in a 00-MW Wind Power Station
(in 2002 dollars) [George and Schweitzer 2008]
Component
Component Cost ($,000)
Normalized
component cost
($/kW)
Rotor
248
65
Blades
49
Hub
64
Pitch mechanism and bearings
36
Drive train and nacelle
563
375
Gearbox
5
Variable-speed electronics
0
Generator
98
Main frame
64
Electrical connections
60
Nacelle cover
36
Low-speed shaft
20
Bearings
2
Yaw drive and bearing
2
Hydraulic system
7
Mechanical brake, high-speed
coupling, etc .
3
Tower
0
67
Control safety system
0
7
TURBINE CAPITAL COST
92
64
Electrical interconnection
27
Roads and civil works
79
Transportation
5
Assembly and installation
5
Foundations
49
Permits and engineering
33
BALANCE OF STATION COST
388
259
Market price adjuster
62
08
TOTAL INITIAL CAPITAL COST
$,47,000
98 $/kW
A comprehensive study by the World Bank [2005] found that wind power is competitive
with many other generating sources in a variety of applications in other countries, ranging
from small isolated turbines and mini-grids to large grid-connected wind plants. Cost esti-
mates are reported for 22 power generation technology configurations for global markets,
and these relative costs are illustrated in Figure 4-34 [World Bank 2005].
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