Technology Status - NET Nowak Energie & Technologie AG

100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
the relatively greater importance of reflector and receiver devices in power
tower systems. This is mainly because very few heliostats have been
manufactured to date and they are expensive (>USD 250/m 2 ).
Table 19
Investment and Generation Costs for CSP Technologies
Investment cost
[€/kW electricity]
Electricity generation cost
[€/kWh]
Sources: NET Ltd., Switzerland.
Figure 31
Hybridisation and thermal storage influence both investment and generation
costs. Typically, hybridisation and thermal storage increase dispatchability
and marketability and result in higher investment costs (see Table 20).
Generation Costs
The cost of investment is one of most important factors determining the cost
of CSP. Typically, depreciation accounts for 25-40% of generating cost.
4
CONCENTRATING SOLAR POWER
Parabolic trough Power tower Dish/engine
system
(SEGS type) (Solar Two) (Stirling)
2,800–3,200 4,000–4,500 10,000–12,000
0.12–0.15 0.15–0.20 0.20–0.25
Relative Costs for Parabolic Trough and Power Tower System Components
Civil works
Parabolic trough Power tower
Control
Reflectors & receivers
Structure
81
Heat transport/storage
Note: Based on the SEGS experience at the Kramer Junction Company for parabolic trough and the projected PS10
for power tower.
Source: NET Ltd., Switzerland.