Photovoltaic Training Course - Module 1.1 resource evaluation
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Solar resource assessment
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Photovoltaic Training Course - Module 1.1 resource evaluation
- 1. Photovoltaic Systems Training Design 1.1 RESOURCE EVALUATION www.leonardo-energy.org
- 2. Capturing a solar resource Solar resource is random and variable Geography of a location will affect solar plant’s capacity There are an increasing number of measurement stations of global radiation and its components: direct and diffuse New measurement tools include geo-stationary satellite More reliable than the interpolation of data from land-based meteorological stations However, new methods of measurement do not eliminate the need for local measurement of solar resource at the location where a solar plant is being considered. www.leonardo-energy.org Solar resource evaluation
- 3. Source: NASA www.leonardo-energy.org Solar resource evaluation Solar radiation maps Tools that can giving a large scale overview of the solar resource available at a location, provide a prima facie understanding of the viability of a site. A rigorous solar evaluation in situ provides more accurate measurement and greater certainty. Additionally, it is good practice to compare satellite data with the data gathered locally from meteorological stations.
- 4. OPTIMUM PROFITABILITY Resource evaluation System losses (PR) • Shadows • Disconnections & Breakdowns • Panel tolerance • Pollution, dispersion & reflectance • Temperature • Inverter • Cables • Latitude • Longitude • Altitude • Data from closest meteorological stations • Data from satellites www.leonardo-energy.org Plant profitability and design
Editor's Notes
- Welcome to the first module in the first chapter of Leonardo Energy’s training course on the design, economic analysis, installation, operation, and maintenance of Grid-connected and Off-grid Photovoltaic Solar Plants. The course is based on a series of webinars delivered for Leonardo Energy by Javier Relancio & Luis Recuero of the Generalia Group in Spain.
- New tools to measure the solar radiation falling on the earth have appeared in recent years. For example, geostationary statellitescan provide a relatively acurate picture of the potential of site for solar energy production. However, while the quality and quantity of the data has improved dramatically, it remains insufficient for a detailed evaluation of any potential solar location.
- Solar resource evaluation: Solar Radiation maps Each day, we can find new maps, which have less uncertain measures They allow a first approach to the viability study for a solar plant location They can be considered enough for small solar facilities But to get a completely certain measure, a rigorous solar radiation evaluation must be done in situ. Then we can additionally compare them with the satellite information and the closer meteorological stations.
- A site’s viability for solar energy production needs to take The possibility of shadowing, breakdowns and disconnections need to be taken into account together with the possiblity of factors that will reduce system efficiency such as very high temperatures, pollution or light dispersion, among others.