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Case Studies on the Use of Solar Irradiance Forecast for Optimized Operation Strategies of Solar Thermal Power Plants

Wittmann, Michael and Breitkreuz, Hanne and Schroedter-Homscheidt, Marion and Eck, Markus (2008) Case Studies on the Use of Solar Irradiance Forecast for Optimized Operation Strategies of Solar Thermal Power Plants. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 1 (1), pp. 18-27. DOI: 10.1109/JSTARS.2008.2001152. ISSN 1939-1404.

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Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?isnumber=4648334&arnumber=4609944&count=16&index=6

Abstract

The Spanish Royal Decree 661/2007 for the regulation of renewable energy allows operators of power plants to participate directly on the electricity market instead of reverting to flat-rate prices. The premium tariff option motivates operators of renewable energy plants to increasingly act like managers of conventional plants, selling electricity at the liberalized market. Just like a normal market participant, the operator places bids in advance on the day-ahead market and is obliged to fulfill them. Thus, there is the need for operators of renewable energy plants to be able to provide predictable and dispatchable energy in the profitable premium tariff. This legal setting motivates the following analysis on the value of irradiance forecasts for determining optimal operation strategies of solar power plants. The scientific background of this study are ongoing research activities on the use of satellite-based nowcasting of solar irradiance using cloud motion vector techniques and on data assimilation of aerosols into air quality models as a basis for day-ahead irradiance forecasts. The influence of a schedule based on imperfect forecasts on the daily revenue for a solar thermal power plant is assessed. Three typical weather situations are analyzed: clear-sky, overcast, and aerosol-charged situations. This paper shows the economic potential of the participation at the premium tariff with optimized operation strategies using direct solar irradiance forecasts based on earth observation techniques.

Document Type:Article
Title:Case Studies on the Use of Solar Irradiance Forecast for Optimized Operation Strategies of Solar Thermal Power Plants
Authors:
AuthorsInstitution or Email of Authors
Wittmann, Michaelmichael.wittmann@dlr.de
Breitkreuz, HanneHanne.breitkreuz@gmx.de
Schroedter-Homscheidt, Marionmarion.schroedter-homscheidt@dlr.de
Eck, Markusmarkus.eck@dlr.de
Date:March 2008
Journal or Publication Title:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:1
DOI:10.1109/JSTARS.2008.2001152
Page Range:pp. 18-27
ISSN:1939-1404
Status:Published
Keywords:Energy meteorology, optimized operation strategy, solar direct irradiance forecast, solar thermal power plant, STPP
HGF - Research field:Aeronautics, Space and Transport (old), Energy
HGF - Program:Space (old), Renewable Energies
HGF - Program Themes:W EO - Erdbeobachtung, E SF - Solar research (old)
DLR - Research area:Space, Energy
DLR - Program:W EO - Erdbeobachtung, E SF - Solar research
DLR - Research theme (Project):W - Vorhaben Atmosphären- und Klimaforschung (old), E - Applikationsentwicklung (old)
Location: Stuttgart , Oberpfaffenhofen
Institutes and Institutions:Institute of Technical Thermodynamics > Solar Research
German Remote Sensing Data Center
Deposited By: Michael Wittmann
Deposited On:28 Oct 2008
Last Modified:24 Apr 2013 16:52

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