ANALYSIS OF REAL CONCENTRATING SOLAR PLANT WITH THERMAL STORAGE SYSTEM IN THE BRAZILIAN SCENARIO
DOI:
https://doi.org/10.59627/cbens.2024.2436Keywords:
Technical/economic analysis, Sensitivity analysis, Solar towerAbstract
This study aims to present the results of applying a computational tool developed to conduct a technical economic feasibility analysis of a large-scale concentrating power plant with a Solar Power Tower (SPT) topology and technical characteristics similar to the plant designed in Tabuk, Saudi Arabia. For this purpose, the performances of this plant (with and without thermal storage) will be computationally identified, considering its installation in Bom Jesus da Lapa, in the northeast region of Brazil. Feasibility analysis indicators were obtained considering that the electricity produced is negotiated in the Regulated Contracting Environment (ACR) of the Brazilian Elec tricity Market (MEEB). The results show that the annual energy generation and capacity factors achieved in northeastern Brazil exceed the values of the real plant, confirming the potential for installing such plants in Brazil. However, the project was not economically viable under the initially evaluated conditions. Therefore, a Sensitivity Analysis (SA) was conducted on some strategically selected variables, namely, the exchange rate, the minimum attractive rate, the initial investment (Capital Expenditure - CAPEX), the equity percentage and the electricity selling price in the ACR, aiming to assess their impacts on the Net Present Value (NPV) of the project. Finally, an optimistic scenario was evaluated considering the NPV response to the parameters investigated in the SA. For this scenario, the results indicated the economic viability of the project. This type of initiative is important for the advancement of solar energy in the Brazilian scenario and its respective encouragement, either through Research and Development studies or through regulatory benefits that make certain technologies more attractive.
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