Parabolic Trough or Solar Tower? A technology decision

Securing cost reductions and carving out routes to grid parity remains as ever the most pressing issue for the CSP industry.

At the crux of this pursuit is understanding the associated costs of the CSP technologies themselves, whether it be Parabolic Trough, Solar Tower, Linear Fresnel or Dish Sterling. Delving even deeper, the ability to identify and successfully implement cost reduction strategies is dependent on understanding where exactly the bulk of costs currently rests within these technologies.


CSP Today's Technology reports has recently analysed the costs of Parabolic Trough and Solar Tower and found that CAPEX costs varied by only 1% between these technologies. However the percentage of costs distributed between EPC, developer and solar field provided more significant variation.

Parabolic Trough

For a reference plant with a 110 MW gross, 6 hours of TES and dry cooling located in the MENA region the CAPEX represented the largest portion of lifecycle costs, accounting for 48%.

The distribution of CAPEX costs revealed that within this 48%:

•EPC costs account for 92% of upfront costs
•Developer costs account for 8% of upfront costs
•The solar field (i.e. collector structure, mirrors, absorbers, hydraulic actuators and HTF piping) represents the largest proportion of CAPEX costs at 30%

Solar Tower

For a reference plant with a 100 MW capacity, 6 hours of TES and dry cooling located in the MENA region the CAPEX represented the largest portion of lifecycle costs, accounting for 49%.

The distribution of CAPEX costs revealed that within this 49%:

•EPC costs account for 91% of upfront costs
•Developer costs account for 9% of upfront costs
•The solar field (i.e. heliostats, the drives, the foundation, pedestal and support structure) represents the largest proportion of CAPEX costs at 24%

For more information about the CSP Today's Technology Reports, please visit: http://www.csptoday.com/csp-technology-report/index.php

Or contact:

Bea González
CSP Today
bea@csptoday.com

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