Assessment of Parabolic Trough and Power Tower Solar Technology Cost and Performance Forecasts

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Assessment of Parabolic Trough and Power Tower Solar Technology Cost and Performance Forecasts ( assessment-parabolic-trough-and-power-tower-solar-technology )

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2015 $50/m2 2020 $46/m2 *Smaller solar field per kWe due to no storage. SEGS VI $/kWe 4-12 SL-5641 Final Reduction from 25% 489 LS-2 LS-3 EuroTrough Duke Solar IST $58/m2 $66/m2 $58/m2 $48/m2 $48/m2 31% 450 The baseline cost of $67/m2 is consistent with estimates prepared by Pilkington International (1999) indicating $63/m2. Cost comparisons based on weight for the various structures are illustrated below in Table 4-6. Additional cost reductions will be realized by minimization of the number of required parts, simplification of fabrication and field erection reducing labor costs for on-site assembly and erection. This cost reduction potential has not been quantified in this evaluation since there has not been an actual erection of a new collector structure. The individual metal parts of the structure can readily be manufactured by suppliers worldwide, leading to potential cost reductions through competition. However, structure cost reductions due to commercialization were not specifically considered in this evaluation. Table 4-6 — Costs of Various Structures Based on the current activity in progress by the various suppliers, obtaining the projected cost reductions for the structure represents a low risk. The current weight reduction presented by the suppliers has the potential to meet the projected cost reduction. 4.3.2 Solar Field Heat Collection Elements (HCE) The receivers, or heat collection elements (HCEs), are a major contributor to trough solar field performance. Luz manufactured this solar field component in-house, which has continued under Solel Solar Systems who acquired the Luz manufacturing facilities. HCEs supplied to the SEGS plants for spare parts over the last decade by Solel have shown improvements in performance and reliability. These include improved optical properties

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