Impact of cost uncertainties and solar data variations on the economics of central receiver solar power plants: An Australian case study

Central receiver solar power plants are becoming an increasingly important technology worldwide and appear to be well suited to areas with moderate to high solar availability in Australia. However, the lack of large commercial installations in Australia results in a heavy reliance on cost and performance data from international literature when assessing possible installations. High variability in costs was found and, in combination with solar variability, this leads to considerable uncertainty when estimating the cost of electricity for potential projects. A stochastic methodology is presented that allows for changes in size of the plant, storage capacity, site location, costs of different plant items, and performance variations over the plant's lifetime. The developed methodology is used to produce a distribution of LCOE estimates. Three Australian sites, namely Alice Springs, Kalgoorlie and Mildura, are used as examples to examine the impact of changes of multiple variables on LCOE estimates. Analysis of these case studies shows a limited influence of storage capacity on LCOE, but considerably higher dependence on plant size and site selection. This suggests that the methodology could be applied to select an optimum plant design to meet specific targets or to compare the benefits of prospective projects at different sites.

[1]  A. Khellaf,et al.  Thermal performance prediction and sensitivity analysis for future deployment of molten salt cavity receiver solar power plants in Algeria , 2015 .

[2]  Gregory J. Kolb,et al.  Power Tower Technology Roadmap and Cost Reduction Plan , 2011 .

[3]  Gregory J. Kolb,et al.  Incorporating Uncertainty into Probabilistic Performance Models of Concentrating Solar Power Plants , 2010 .

[4]  Siri S. Khalsa,et al.  Methods for probabilistic modeling of concentrating solar power plants , 2011 .

[5]  Edward Fuentealba,et al.  2050 LCOE improvement using new molten salts for thermal energy storage in CSP plants , 2016 .

[6]  Serm Janjai,et al.  Potential application of concentrating solar power systems for the generation of electricity in Thailand , 2011 .

[7]  Garvin A. Heath,et al.  Molten Salt Power Tower Cost Model for the System Advisor Model (SAM) , 2013 .

[8]  Vipluv Aga,et al.  Adaptation of a Direct Steam Solar Tower Plant with Molten Salt Storage for Optimum Value Creation under Different Incentive Schemes , 2014 .

[9]  J. M. Martínez-Duart,et al.  Analytical model for solar PV and CSP electricity costs: Present LCOE values and their future evolution , 2013 .

[10]  K. Nithyanandam,et al.  Cost and performance analysis of concentrating solar power systems with integrated latent thermal energy storage , 2014 .

[11]  Gregory J. Kolb,et al.  An evaluation of possible next-generation high temperature molten-salt power towers. , 2011 .

[12]  Ross Hall,et al.  An analysis of the costs and opportunities for concentrating solar power in Australia , 2013 .

[13]  Ishan Purohit,et al.  Techno-economic evaluation of concentrating solar power generation in India , 2010 .

[14]  Eduardo Zarza,et al.  Uncertainty and global sensitivity analysis in the design of parabolic-trough direct steam generation plants for process heat applications , 2014 .

[15]  Craig Turchi,et al.  Parabolic Trough Reference Plant for Cost Modeling with the Solar Advisor Model (SAM) , 2010 .

[16]  G. Glatzmaier,et al.  Developing a Cost Model and Methodology to Estimate Capital Costs for Thermal Energy Storage , 2011 .

[17]  Fritz Zaversky,et al.  Probabilistic modeling of a parabolic trough collector power plant – An uncertainty and sensitivity analysis , 2012 .

[18]  Szabolcs Varga,et al.  Optimization of an atmospheric air volumetric central receiver system: Impact of solar multiple, storage capacity and control strategy , 2014 .

[19]  Gregory J. Kolb,et al.  Heliostat Cost Reduction Study , 2007 .

[20]  Maziar Arjomandi,et al.  Effect of heliostat design wind speed on the levelised cost of electricity from concentrating solar thermal power tower plants , 2015 .

[21]  B. Kelly,et al.  Advanced Thermal Storage for Central Receivers with Supercritical Coolants , 2010 .

[22]  Amenallah Guizani,et al.  Potential of concentrating solar power (CSP) technology in Tunisia and the possibility of interconnection with Europe , 2016 .

[23]  Monika Topel,et al.  Enhancing the profitability of solar tower power plants through thermoeconomic analysis based on multi-objective optimization , 2015 .

[24]  Antonio L. Avila-Marin,et al.  Evaluation of the potential of central receiver solar power plants: Configuration, optimization and trends , 2013 .