energies Article Comparison between Concentrated Solar Power and Gas-Based Generation in Terms of Economic and Flexibility-Related Aspects in Chile Catalina Hernández Moris 1 , Maria Teresa Cerda Guevara 1,* , Alois Salmon 1 and Alvaro Lorca 2 1 Fraunhofer Chile Research Foundation, Santiago 7820436, Chile;
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[email protected] (A.S.) 2 Department of Electrical Engineering, Department of Industrial and Systems Engineering, UC Energy Research Center, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile;
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[email protected] Abstract: The energy sector in Chile demands a significant increase in renewable energy sources in the near future, and concentrated solar power (CSP) technologies are becoming increasingly competitive as compared to natural gas plants. Motivated by this, this paper presents a comparison between solar technologies such as hybrid plants and natural gas-based thermal technologies, as both technologies share several characteristics that are comparable and beneficial for the power grid. This comparison is made from an economic point of view using the Levelized Cost of Energy (LCOE) metric and in terms of the systemic benefits related to flexibility, which is very much required due to the current decarbonization scenario of Chile’s energy matrix. The results show that the LCOE of the four hybrid plant models studied is lower than the LCOE of the gas plant. A solar hybrid plant configuration composed of a photovoltaic and solar tower plant (STP) with 13 h of storage Citation: Hernández Moris, C.; and without generation restrictions has an LCOE 53 USD/MWh, while the natural gas technology Cerda Guevara, M.T.; Salmon, A.; Lorca, Á.G.