OFICIAL INAUGURATION METAS AND DUKE Almería 6 June, 2013

Transcription

1 OFICIAL INAUGURATION METAS AND DUKE Almería 6 June, 2013 Dr. Lourdes Ramírez Santigosa División de Energías Renovables. Mr. Stefan Wilbert Institute of Solar Research

2 CONTENT INTRODUCTION MAIN TOPICS DRIVEN BY CIEMAT MAIN TOPICS DRIVEN BY DLR OVERVIEW AND OUTLOOK 2

3 INTRODUCCTION What is METAS METAS is an installation: In METAS are included most of the DLR (Institute of Solar Research) and CIEMAT (Solar Radiation Group) equipment related to solar radiation assessment. METAS is a joint research group: METAS has de intention of increase the collaboration in projects of both research groups. METAS is an agreement: In METAS, both institution share the measured data METAS is a project: METAS has to be founded with external budget 3

4 METAS overview Solar radiation measurements Satellite/modeled data Standardization Solar Technology Beam attenuation in tower plants calibration Nowcasting & irradiance grid Circumsolarradiation Instrument characterization 4

5 INTRODUCTION Who is METAS DLR Institute of solar research Qualification Department Stefan Wilbert Fabian Wolfertstetter Natalie Hanrieder Bijan Nouri Nicole Janottte CIEMAT Renewable Energy Division Solar Radiation Group Lourdes Ramírez Luis F. Zarzalejo Rita X. Valenzuela Jesús Polo Ana A. Navarro Jose M. Vindel CIEMAT PSA Division PSA Staff Antonio Campos Ginés García José Liria DLR Institute of Solar Research Line Focusing Systems CIEMAT Renewable Energy Division CIEMAT PSA Division PSA maintenance staff CSP Unit 5

6 INTRODUCTION BEFORE 2012 Since 1988 different meteo stations (from CIEMAT but also from DLR) have been operated at PSA in order to include new instrumentation to improve the solar radiation knowledge for solving new CSP needs. 6

7 INTRODUCCTION BEFORE 2012 Collaboration in IEA Joint Task: Solarpaces Agreement Task 5 SH&C Agreement Task 46 7

8 INTRODUCCTION 2012 SFERA II (In negotiation phase) Calibration of solar sensors. FP7 Project DNICast (In negotiation phase) Stefan Wilbert Scientific coordination. Picture Norbert Geuder (CSPS) 8

9 INTRODUCCTION OCT 2012 COLLABORATION AGREEMENT 1. Coordinating the use of measuring equipment included in METAS installation. 2. Production of reference meteorological datasets. a) Analysis of spatial variation of DNI. b) Creation of Typical Meteorological Years (TMY) and/or Representative Radiation Years (ASR), etc. c) Standardization and integrating procedures for data bankability, data quality control and treatment, integration of data sources, and evaluation of meteorological parameters. 3. Pyranometer and pyrheliometer calibration with absolute cavity radiometers (ACRs) following international standards. 9

10 CONTENT INTRODUCTION MAIN TOPICS DRIVEN BY CIEMAT MAIN TOPICS DRIVEN BY DLR OVERVIEW AND OUTLOOK 10

11 Solar radiation measurements BASELINE SOLAR RADIATION NETWORK since October

12 Solar radiation measurements Web access to the recorded data 12

13 Arquitecture of systems and comunications 13

14 Web portal and data bases 14

15 Satellite/modeled data Spatial distribution of solar radiation Global model (GSat2Rad) Integration of data sources Validation and uncertainty 15

16 Satellite/modeled data Spatial distribution of solar radiation 16

17 Satellite/modeled data Spatial distribution of solar radiation 17

18 Satellite/modeled data 18

19 Satellite/modeled data 19

20 Standardization Solar radiation measurement stations Configuration and optimization of measurement stations for the characterization of solar radiation at specific sites Location of stations Data acquisition systems and communication elements Station configuration Selection of instrumentation depending on the application 20

21 Standardization A manual on best practices for the provision of bankable datasets of measured data for concentrating solar power projects for investors, financial and governmental institutions will RSI specific manual 21

22 Standardization Solar radiation data treatment quality control records generating series (TMY, SRY) series analysis probability functions trends 22

23 Calibration Traceable to the World Radiation Reference (World Standard Group) PYRHELIOMETERS ISO 9059: Calibration of field pyrheliometers by comparison to a reference pyrheliometer. 23

24 Calibration pyranometer ISO 9846: Calibration of a pyranometer using a pyrheliometer. Establishes two calibration methods Alternating sun and shade Continuous sun ISO 9847: Calibration of field pyranometers by comparison to a reference pyranometer. Establishes two calibration methods Calibration inside Outside calibration Stable conditions of clear sky Unstable conditions sky with some clouds Overcast conditions 24

25 Calibration 25

26 CONTENT INTRODUCTION MAIN TOPICS DRIVEN BY CIEMAT MAIN TOPICS DRIVEN BY DLR OVERVIEW AND OUTLOOK 26

27 Rotating Shadowband Irradiometers (RSIs) global irradiance diffuse irradiance Principle of operation 1. Pyranometer measures global irradiance 2. Shadowband rotates once per minute 3. During rotation: measure the diffuse irradiance DNI is calculated DNI (Direct Normal Irradiance) Robust instrument used for solar resource assessment at remote sites Characterization, further improvements & calibration 27

28 Circumsolar radiation Circumsolar radiation is forward scattered solar radiation disk radiation Concentrating collectors use: nearly the complete disk radiation + a smaller fraction of the circumsolar radiation 28

29 Measurement of circumsolar radiation SAM (Sun & Aureole Measurement), sun photometer & software autonomous measurements additional determination of aerosol & cloud properties master system running at PSA 2 replicas: CNRS/Odeillo (France), Masdar Institute (United Arab Emirates) Sun photometer part of measurement network AERONET 1 SAM sun photometer 29

30 AERONET sun photometer PSA station is part of NASA s AERONET since 2011 reference for satellite based aerosol measurements input for DNI modeling 30

31 Beam attenuation in tower plants Depending on the atmospheric conditions the reflected radiation is attenuated noticeably on its way to the tower. Influence on output and design of tower plants (field size) 31

32 Beam attenuation in solar tower plants How can we measure and model the attenuation? How does the attenuation vary with time and climate? Visibility sensors (Scattermeters) Transmissometers Aerosol particle counter + radiative transfer model DNI measurements on the ground and on the tower 32

33 Beam attenuation in tower plants & cloud effects LIDAR: LIght Detection And Ranging Aerosol height profile Cloud height & cloud properties par al shading of CSP collector fields 33

34 Partial shading and nowcasting of DNI Especially relevant for Direct Solar Steam technology DUKE Provide spatially & temporally resolved DNI data for CSP simulation & operation. Develop nowcasting (short term prediction) of DNI maps for the operation. Andasol parabolic trough plants 34

35 Cloud height from LIDARs 35

36 Cloud camera based DNI nowcasting determine the cloud position using photogrammetry follow & predict cloud movement from picture series 4 cameras 36

37 CONTENT INTRODUCTION CIEMAT DRIVEN TOPICS DLR DRIVEN TOPICS OVERVIEW & OUTLOOK 37

38 METAS overview& outlook BSRN Satellite/modeled data Standardization New topics Nowcasting & irradiance grid Solar Technology Pyranometer & pyrheliometer calibration Beam attenuation in tower plants Circumsolar radiation Instrument characterization 38

39 Thank you for your attention! Thanks specially to the project members the PSA maintenance staff the DUKE colleagues Norbert Geuder (CSPS) Partially funded by: EU FP7 (SFERA), German Foreign Office (enermena)