Ordenamiento Ambiental del Territorio y Sistemas De Información Geográfica Como Herramientas Para La Evaluación Ambiental Estratégica en La Generación De Energía Sustentable a Partir de La Energía Solar (original) (raw)
Related papers
Analysis of alternatives for the assessment of the solar resource in Argentina
In a paper by Grossi Gallegos 12 charts were presented in 1998 with the monthly distribution of the mean value of daily global irradiation, using all available information up to that moment in Argentina, whether from daily irradiation data obtained with Argentina´s Solarimetric Network pyranometers or sunshine hours measured by the National Meteorological Service Network; the error due to the inclusion of estimates and interpolations was evaluated about 10%. After that, Solarimetric Network underwent a continuous decrease in the number of operational stations due to the lack of resources for supporting them. In view of this situation, different alternatives were gradually evaluated which would make it possible to improve the already mentioned available global solar irradiation charts. Authors test relationships between relative sunshine hours with global solar irradiation proposed by Ångström and by Suehrcke, and differences between maximun and minimum temperatures related to global...
Energy Procedia, 2014
To achieve urban sustainability, the access to solar radiation must be a guaranteed right in the cities. There is an urgent need to review designs, patterns and constructive technologies to obtain energy efficient buildings providing thermal and lighting comfort for their occupants through the maximum utilization of available renewable resources of energy. Although solar radiation is one of the most valuable resources of clean and renewable energy, the access to the same seldom constitutes a social right. When analyzing the viability of a bioclimatic design in a new building or in the recycling of an existing one, it is fundamental to know what the solar available potential is, especially in urban consolidated areas where the characteristics of the structure significantly determine the access and availability of the resources. This problem is present in all Latin American cities, emerging from a Spanish colonial grid layout. In order to reverse this tendency, it is necessary to ensure the future free utilization of solar power destined for central and water heating in urban surroundings regardless of their densities. However, the reality indicates that the legal existing frame in many countries of Latin America does not consider the renewable resources as appropriable. This paper presents the evaluation of the impact of regulations in medium scale Argentine cities, in relation to the solar potential of buildings located in consolidated areas. If the present patterns continue, the application of rules orientated toward the utilization of solar resources, will be viable only with great difficulty.
A solar irradiation GIS as decision support tool for the Province of Salta, Argentina
Renewable Energy, 2019
The province of Salta is characterized by its solar energy high potential. The use of solar resource would improve living conditions in the area, diversify the energy matrix, promote more sustainable production systems and reduce greenhouse gases emissions. However, there are only a few studies that describe in high spatial resolution the variability of the solar resource in Argentina. Multidimensional tools, that consider the environment and the socioeconomic situation, have to be considered for adequate support decision-making, such as solar collector location assessment and photovoltaic potential. In this sense, a deep evaluation of the solar resource is needed first, as solar irradiation is an essential input variable for the design and evaluation of solar application systems. In this paper, we detail the methodology used to elaborate a GIS tool to support decisions related to renewable energy policies and solar technology design. A comparison between global solar irradiation measurements in situ, empirical models, and data provided by Land Surface Analysis Satellite Applications Facility (LSA-SAF), is performed in daily, monthly and annual basis for a seven-year period. This analysis validates the use of this satellite data for the determination of solar irradiation in the region.
The state of solar energy resource assessment in Chile
Renewable Energy, 2010
The Chilean government has determined that a renewable energy quota of up to 10% of the electrical energy generated must be met by 2024. This plan has already sparked interest in wind, geothermal, hydro and biomass power plants in order to introduce renewable energy systems to the country. Solar energy is being considered only for demonstration, small-scale CSP plants and for domestic water heating applications. This apparent lack of interest in solar energy is partly due to the absence of a valid solar energy database, adequate for energy system simulation and planning activities. One of the available solar radiation databases is 20–40 years old, with measurements taken by pyranographs and Campbell–Stokes devices. A second database from the Chilean Meteorological Service is composed by pyranometer readings, sparsely distributed along the country and available from 1988, with a number of these stations operating intermittently. The Chilean government through its National Energy Commission (CNE) has contracted the formulation of a simulation model and also the deployment of network of measurement stations in northern Chile. Recent efforts by the authors have resulted in a preliminary assessment by satellite image processing. Here, we compare the existing databases of solar radiation in Chile. Monthly mean solar energy maps are created from ground measurements and satellite estimations and compared. It is found that significant deviation exists between sources, and that all ground-station measurements display unknown uncertainty levels, thus highlighting the need for a proper, country-wide long-term resource assessment initiative. However, the solar energy levels throughout the country can be considered as high, and it is thought that they are adequate for energy planning activities – although not yet for proper power plant design and dimensioning.
Renewable Energy, 2015
The South American High Plateau (Altiplano) is one of the few regions on the planet believed to receive, at certain sites, an annual mean daily direct solar irradiation greater than 9 kWh/m 2 (32.4 MJ/m 2). The veracity of this estimation is important because it implies that establishing large solar power stations in the region would be highly profitable. However, the measured data are highly localised, and the knowledge of the spatial distribution of the resource could be insufficient. To address this problem, the global and direct normal solar radiation data measured at eight stations distributed in northern Chile were compared with the SWERA database for South America. The differences found between the estimated and measured values were as high as 11%, on an annual basis. Thus, the SWERA database could be used to construct maps of the isolines of direct solar radiation to help visualise the spatial distribution of the resource. An analysis was performed to determine the per cent variation of a solar field collection area designed to achieve stable energy production throughout the year. Based on the analysis results, the northern region of Chile presents an economic potential much greater than that of the Mojave Desert from the point of view of the economic risk for a solar venture. This information can serve as a useful and reliable tool because it represents the initial assessments of optimal sites for installing solar power stations.
Respuestas, 2020
This research shows the estimation of direct, diffuse and total irradiation in the department of Cesar (Colombia) through the use of the Bird and Hulstrom model and parameterizations of the Mächler and Iqbal model. The data used for this purpose were collected by the meteorological stations installed by the Institute of Hydrology, Meteorology and Environmental Studies of Colombia (IDEAM) corresponding to the range of collection and analysis with more than 20 years between 1993 and 2013, a period of study suitable for a comprehensive solarimetric study. Irradiation data were estimated taking into account four types of climate scenarios that depended on the type of atmosphere present in the study area. It was found that the solar potential of the department of Cesar, located on the Colombian Caribbean Coast, presents average total irradiations ranging from 6.2 kWh/m2day in very turbid atmospheres to 6.8 kWh/m2 day in extremely clean atmospheres, making it one of the regions with the h...
ISRN Renewable Energy, 2012
This paper presents the maps of solar radiation on the surface of south-east region of Spain namedRegión de Murcia. These maps are the result of treatment, study, and correlations obtained by data of 35 weather stations distributed throughout the region. These stations have collected data for 6 to more than 25 years. The paper presents the work performed for the treatment of collected data, the correlations used for the adjustment of the data, and the parameters obtained as a result of this adjustment. The weather stations are equipped with various sensors to collect several parameters, the measures covered and used for the study were global and diffuse radiation (in case that the station has pyranometer diffuse) and ambient temperature. The results were used to produce maps of horizontal radiation (global and diffuse) and ambient temperature at the surface of the region studied. To achieve the irradiation maps for this extended region has been used “r.sun” program, technical progra...
Solar Energy, 2015
The progress in solar energy resource assessment for Chile is reported, including measurements from a ground station network spanning more than three years of data, satellite estimations from the recently developed Chile-SR model including three full years of data, and simulations that evaluate the potential for solar thermal, photovoltaics (PV) and concentrated solar power (CSP) utilization. The satellite estimation model adapts the Brasil-SR methodology with the combined use of visible and infrared (IR) satellite images, an enhanced treatment for altitude-corrected meteorological variables and an effective cloud cover computations that allows the estimation of the global horizontal and diffuse horizontal irradiation on an hourly basis. Direct normal irradiation (DNI) is computed from the direct horizontal irradiation by applying the Boland-Ridley-Laurent (BRL) model of diffuse fraction and proper solar geometry corrections. Comparison of the satellite-derived data with the ground station data shows good agreement and low error levels thus served for model validation. The results indicate that Chile is endowed with one of the highest levels of solar resource in the world in terms of annual irradiation for large portions of its territory. There is a small decrease in yearly levels of GHI and DNI with latitude that in practice indicate that most of the country shares exceptional conditions for solar energy. However, coastal regions have a large decrease in both GHI and DNI due to the persistence of seasonal cloud covers with daily cycles. The use of irradiation data from the Chile-SR model for system simulation indicates that solar fractions over 80% are achievable for residential-sized solar thermal systems in most of the country, with PV systems yielding between 4.5 and 8 kW h/kWpv, and CSP annual yields of up to 240 GW h/year for a 50 MW parabolic trough plant. These results indicate that the country has the potential for ample utilization of solar energy conversion technologies in most of its territory when considering annual GHI and DNI, suitable terrain availability and energy (electricity and heat) demand from industrial, commercial and residential activities.
The Egyptian Journal of Remote Sensing and Space Science, 2017
Currently, quantifying global solar radiation at surface in Argentina is crucial for the development of projects related to solar energy, calculation of evapotranspiration and eco-sustainability architecture, among other environmental issues. In recent years, several models have been developed to estimate the solar energy resources by means of various techniques, e.g. satellite imaging, kriging, or Artificial Neural Networks. The use of satellite data allows for a better spatial representation, being of great relevance in areas with lack of terrain measurements. In this paper, we use the CERES_SYN1deg to develop a new Global Solar Radiation Atlas for Argentina. In this study, we developed maps of annual and monthly mean daily global solar radiation using CERES_SYN1deg data between 2000 and 2016. In order to validate the global solar radiation data provided by CERES_SYN1deg, they were compared with ground-based measurements in the time overlap of both instruments, in four monitoring sites of the SAVER-Net project and an additional site in Tandil, which belongs to the Remote Sensing Group of IHLLA. The maps show the spatial and temporal variation of global solar radiation in Argentina. Comparisons with ground-based pyranometers reveal relative differences of around 3% at a monthly scale for all sites, while the biases can be neglected. Therefore, it is possible to conclude that the maps could be very useful for different technical and scientific purposes, and the comparison with ground-based data demonstrates CERES_SYN1deg's reliability.
Evaluation of the Solar and Wind Energy Potential of the
This paper aims to analyze and evaluate the existing solar and wind energy potential in the Paraguayan Chaco, for which a Davis weather station was installed in La Patria for a three months period, which sent every 30 minutes data of wind speed at 10m height and global solar radiation. The measuring instruments were calibrated according to international standards, field experience and scientific literature independently. For the elaboration of this paper four aspects were taken into account: 1) the experimental method of data treatment, 2) adjustments based on data from scientific literature, 3) discussion of the results and 4) the conclusions, which allow us to have an overview more comprehensive about the potential of renewable energy resources existing in the region. Regarding the use of mathematical models, adjustments were made using regression curves and statistical models representing the focus of analysis of this research.