Solar energy consultancy_2010_en_e


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Solar energy consultancy_2010_en_e

  1. 1. | | Celso Costa
  2. 2. Solar energy services
  3. 3. Prologue | As the national renewable energy consultancy reference, MEGAJOULE is proud to present to you our solar energy projects development and support services, dedicated to all the main players in the energy global market, such as investors, promoters and financial institutions. Our solar project’s portfolio ranges from technical due diligences to country scale resource mapping and prospecting to the amount of 100 MW, in Portugal, Spain, Romania and East Timor. We provide an independent perspective allied to a tailor made product range, always synchronized with each clients goals. Our goal is to contribute to the settlement of economically viable renewable energy projects, providing excellent consultancy services to our costumers integrated in a variety of levels.Solar energy servicesMEGAJOULE 2010 3
  4. 4. Our services 4
  5. 5. Our services | Due diligence for solar power plants The perception of the risks associated to the solar energy industry and how to deal with them, is an essential tool for investors and financial institutions, which invest in these business area. Therefore, requiring services tailored to their objectives, such as: -Technical due diligence; -Equipment and mounting solutions comparative studies; -Power plants extension possibilities. We provide an independent analysis and support service, using our cumulative experience and the most advanced research tools, some of them developed by our very own innovation and research team, so that our clients can make rigorously informed decisions on their investments and projects.Solar energy servicesMEGAJOULE 2010 5
  6. 6. Our services | Solar resource prospecting Based on point measurements and/or satellite coverage, MEGAJOULE uses a self constructed algorithm, similar to the one used in the European Solar Radiation Atlas (ESRA/SoDa)) in order to determinate the parameters of solar radiation for the whole prospected area requested for the projects. Considering the individual needs of each client, we provide mappings with definitions that range from 10 km, for large scale areas, to 100m, for local bounded projects . Covering from small areas, destined to utility scale power plant implementation, to country scale mappings for resource prospecting in order to search for the best investment locations.Solar energy servicesMEGAJOULE 2010 6
  7. 7. Our services | Feasibility studies This services package is dedicated to the initial stage of the solar power plant design phase, when a complete approach to the place(s) considered for the projects implementation is required. Its main objective is to provide an analysis of the multiple parameters that contribute for the local quality, as a energy generator, combining the desired area’s resource mapping with local construction restrictions, access ways, technologies in use and respective energy production estimates. The feasibility study can also be extended to many places simultaneously, where the promoter is considering the investment, providing a comparative perspective , in which the sites quality and mounting options are considered.Solar energy servicesMEGAJOULE 2010 7
  8. 8. Analysis tools 8
  9. 9. Analysis tools | Data base comparative analysis Information exclusively gathered by satellite coverage, particularly: Meteosat5-9, ISCCP, GEWEX/SRB3, etc.. Stations + Satellite Satellite • Satel-light • Meteonorm • NASA SSE Data from meteorological • ESRA • HelioClim V3 measurement stations complemented by satellite data coverage Stations Information exclusively gathered • PVGIS from meteorological stations • Meteorology institutesSolar energy servicesMEGAJOULE 2010 9
  10. 10. Analysis tools | Meteorological data processing A successful solar power plant relies on a comprehensive knowledge of the Solar pattern across the desired area. However, the initial characterization of prospective areas is often a challenge due to the lack of reliable local-data. Moreover, traditional climatologic data bases have many limitations like coarse resolutions, data periods restricts and high uncertainty in cloud cover assessment. In order to provide a reliable regional climatic analysis MEGAJOULE has developed a wide range of solutions using Solar numerical simulations based on European Solar Radiation Atlas methodology, advanced interpolation methods and Mesoscale numerical simulations.Solar energy servicesMEGAJOULE 2010 10
  11. 11. Analysis tools | Solar resource mapping methodology  Usage of the ESRA/SODA clear sky model, taken into account turbidity values for one most description of the scattering by aerosols and the absorption by gas, mainly water vapor;  Clear sky values of direct, diffuse, reflected and global radiation components, are independently modeled in horizontal plane or tilt plane;  Clear sky values are corrected, by effective distances interpolation method, from ground measurements, NASA database or mesoscale modeling (WRF)Solar energy servicesMEGAJOULE 2010 11
  12. 12. Analysis tools | Resource prospecting The applicability of a solar resource map is related to several parameters, but mostly to the function of its horizontal resolution, which should be chosen to be suitable with its purpose and subsequent correction of clear sky values. Governments or Grid Manager scale  Solar resource prospecting and quantification (investor)  Defining regions with socioeconomic development potentialities  Grid management (extension or enforcing)  Planning national energy needs (source)Solar energy servicesMEGAJOULE 2010 12
  13. 13. Analysis tools | Terrain evaluation Due to the reduced spatial variability of the solar resource, the equipment layout across the project’s area importance is less than the site’s location itself. Therefore, the keywords are: “Location, location and location…” Terrain aspect  In order to obtain the best performance, terrain should have south orientated surfaces; Topography  Ideally the project’s area should be flat and without any kind of permanent vegetation; Surroundings  From the terrain analysis results the Sky-View Factor, which expresses the percentage of non obstructed horizon in each point of the consideredSolar energy services grid.MEGAJOULE 2010 13
  14. 14. Analysis tools | Surrounding effects  The first radiation blockage evaluation can be done on-site, thru visual inspection, in order to predict the zones and periods year around which will be affected by shades on the horizon;  Accounting for the line visibility on the horizon, using GIS calculated elevation angles in the vicinity, obtaining the local horizon profile.  Modeling of obstacles in urban environment above the topographical horizon profile, which can cause additional losses and, therefore, significant degradation on the systems energy output.Solar energy servicesMEGAJOULE 2010 14
  15. 15. Final Product 15
  16. 16. Final product | Detailed reports Presentation of the annual energy production estimates followed by comments and expert recommendations; Conclusions withdraw from equipment and mounting solutions comparative studies; Optimization of the layouts according to the results obtained; Cidade Rodrigo Salamanca I Salamanca II 180.00 200.00 600.00 Produção Produção Produção 160.00 Estimativa 180.00 Estimativa Estimativa Evaluation of the uncertainty associated to 500.00 140.00 160.00 140.00 120.00 400.00 120.00 MWh/mês MWh/mês MWh/mês the production estimates, where we 100.00 100.00 300.00 80.00 80.00 60.00 200.00 60.00 registered an excellent correlation between 40.00 40.00 100.00 20.00 20.00 - - - predicted values and the ones occurred in the Jan Fev Mar Abr Mai Jun Jul Ago Set Out Nov Dez Jan Fev Mar Abr Mai Jun Jul Ago Set Out Nov Dez Jan Fev Mar Abr Mai Jun Jul Ago Set Out Nov Dez field; Long term analysis of equipment performance degradation, and the consequent effective energy production decay over the years.Solar energy servicesMEGAJOULE 2010 16
  17. 17. Final product | Featured documentsSolar energy servicesMEGAJOULE 2010 17
  18. 18. Final product | Experience across the worldSolar energy servicesMEGAJOULE 2010 18
  19. 19. www.megajoule.ptPortugal • Brazil • Poland 19