SOLAR ENERGY RESOURCE ASSESMENT IN CHILE
DOI:
https://doi.org/10.59627/cbens.2008.1345Keywords:
Chile, Resource Assesment, Satellite Estimation, Solar EnergyAbstract
The Chilean government ́s energy policy and the power generation sector plans include wind, geothermal, hydro and biomass powerplants in order to introduce renewable energy systems to the country, but they do not mention solar energy to be a part of the plan. This apparent lack of interest in solar energy is partly due to the absence of a valid solar energy database, adequate for energy system planning activities. The only available solar radiation database is relatively old, with measurements taken in 89 stations from the 60’s onwards, obtained with high- uncertainty sensors such as Campbell-Stokes devices and pyranographs. Moreover, not all stations have measured incoming solar radiation for an adequate time span. Here, we compare the existing database of solar radiation in Chile with estimations made with satellite measurements, obtained from the GOES program through collaboration with the Brazilian space institution, INPE. Monthly mean solar energy maps are created from both data sources and compared, using Krigging methods for spatial interpolation. It is found that a maximum 30 percent deviation exist, with snow covers in the Andes Mountains adding additional uncertainty levels. The solar energy levels throughout the country can be considered as high, and it is thought that they are adequate for energy planning given proper diffusion and support by editing a Chilean Solar Atlas.
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References
Perez, R.; Seals, R.; Zelenka, A. Comparing Satellite Remote Sensing and Ground Network Measurements for the Production of Site/Time Specific Irradiance Data. Solar Energy 1997; 60 (2): 89-96.
Pereira, E.; Martins, F.; de Abreu, S.; Ruther, R. Atlas Brasilero de Energía Solar, São José dos Campos: INPE, 2006.
McClatchey, R.A.; Fenn, R.W.; Selby, J.E.A.; Volz, F. E.; Garin, J.S. Optical propert ies of atmosphere. Bedford, Massachusetts: Air Force Cambridge Research Laboratories 1972, (AFCRL-72-0497), 108p.
Gambi, W. Avaliação de um modelo físico estimador de irradiância solar baseado em satélites geoestacionários. Dissertação de Mestrado. Universidade Federal de Santa Catarina. Florianópolis, 1998.
Ceballos, J.C.; Bottino, M.J. Solar radiation in South America, period 1998-2004: Some aspects of a satellite-based data base. XIV Congresso Brasileiro de Meteorologia, Florianópolis, SC 2006.
Ceballos, J.C.; Bottino, M.J. Arquivos de Radiação Solar Es timada por Satélite. Séries pentadais para a América do Sul, Versão V01: modelo GL1.2, Outubro 1997 - Março 2005. Divisão de Satélites e Sistemas Ambientais CPTEC/INPE, 2006.
Ceballos, J.C.; Bottino, M.J.; Galvão, A.M.; Rodrigues, M.L. Ar quivos de Radiação Solar Es timada por Satélite. Séries pentadais para a América do Sul, Versão V02: modelo GL1.2, Janeiro 1996 – Dezembro 2006. Divisão de Satélites e Sistemas Ambientais CPTEC/INPE, 2007.
Ceballos, J.C.; M.J. Bottino; De Souza, J.M. A simplified physical model fo r assessing solar radiation over Brazil using GOES 8 visible imagery, Journal of Geophysics 2004. Res., 109, D02211, doi:10.1029/2003JD003531.
Ceballos, J.C.; Bottino, M. J. Estimativa de radiação solar por satélite: Desempenho do modelo operacional GL 1.2. Anais do XIII Congresso Brasileiro de Meteorologia, Fortaleza - CE, 2004.
Cáceres, R. Modelo Estadístico de la Radiación total en plano horizontal para diversas estaciones del país. Memoria de Título; Facultad de Ingeniería, Departamento de Mecánica, Universidad Técnica Federico Santa María, Chile 1984.
Allende, H.; Sarmiento, P.; Cáceres, R. Preparación de tabla de radiación total mediante modelo estadístico para la República de Chile. IV Seminario Nacional de Energía Solar y Eólica, Universidad de Concepción, 1984.
Davis, John C. Statistics and data analysis in geology , 2nd ed. Wiley, New York c1986. ISBN 0471080799
Issaks, Edward, and Mohan Srivastava. Applied Geostatistics. Oxford University Press, Oxford, 1989.
Ceballos, J.C., M.J. Bottino, R. Righini. Radiación solar en Argentina es timada por satélite: Algunas características espaciales y temporales. IX Congremet, Buenos Aires, Argentina. Octubre 2005.
Pereire, E., Ramos, F.M, Abreu, S. L., Ruther, R. Atlas Brasileiro de Energía Solar. INPE, 2006.
