Abstract: . . .  of fig. 6 and the specific costs assump- Page 4 tions of table 1. Since today’s costs of solar thermal power plants are lower than of PV systems, the levelised electricity costs are also lower above global irradiations of 1100 kWh/(m² a) although the specific output of the PV system is higher until 1700 kWh/(m² a). Nevertheless, there is a high uncertainty in the simulation results of solar thermal power plants at very low irradiations. Due to the high investment costs for multi megawatt solar thermal . . .
. . .  for solar thermal power in North Af- rica within the next 10 years. Thus, solar electricity will get a more important role in the struggle against global warming. REFERENCES Enermodal Engineering Ltd. (1999) Final report prepared for the World Bank: Cost reduction study for solar thermal power plants. World Bank, Washington DC. Quaschning, V.; Kistner, R.; Ortmanns, W. (2002) Influence of Direct Normal Irradiance Variation on the Optimal Parabolic Trough Field Size: A Problem Solved with Technical . . .
. . .  thermal solar SPECIFIC COST DEVELOPMENT OF PHOTOVOLTAIC AND CONCENRATED SOLAR THERMAL SYSTEMS DEPENDING ON THE GLOBAL IRRADIATION Page 1 ISES Solar World Congress 2003 · Göteborg, Sweden, 14-19 June 2003 SPECIFIC COST DEVELOPMENT OF PHOTOVOLTAIC AND CONCENRATED SOLAR THERMAL SYSTEMS DEPENDING ON THE GLOBAL IRRADIATION - A STUDY PERFORMED WITH THE SIMULATION ENVIRONMENT GREENIUS Dr. Volker Quaschning and Winfried Ortmanns Deutsches Zentrum für Luft- und Raumfahrt e.V., . . .
. . .  1300 1500 1700 1900 2100 2300 2500 global horizontal irradiation in kWh/(m² a) 2-axis tracking photovoltaic system parabolic trough system non-tracked 30° tilted photovoltaic system €/kWh Fig. 8. Levelised electricity generation costs in 10 years for photovoltaic systems and 1-axis tracked concentrated parabolic trough systems as function of the global hori- zontal irradiation In 10 years, the break-even irradiation for the generation costs of non-concentrating and solar thermal systems move to higher . . .
. . .  Size: A Problem Solved with Technical and Economical Simulations. ASME Journal of Solar Energy Engineering Vol. 124, May 2002, pp. 160-164. Quaschning, V.; Ortmanns, W.; Kistner, R.; Geyer, M. (2001) greenius – A new Simulation Environment for Technical and Economical Analysis of Renewable Independent Power Projects. Proceedings of ASME International Solar Energy Conference Solar Forum 2001, 22-25 April, Washington DC, pp. 413-417. Woditsch, P. (2000) Kostenreduktionspotenziale bei der Herstellung von . . .
. . .  thermal solar SPECIFIC COST DEVELOPMENT OF PHOTOVOLTAIC AND CONCENRATED SOLAR THERMAL SYSTEMS DEPENDING ON THE GLOBAL IRRADIATION Page 1 ISES Solar World Congress 2003 · Göteborg, Sweden, 14-19 June 2003 SPECIFIC COST DEVELOPMENT OF PHOTOVOLTAIC AND CONCENRATED SOLAR THERMAL SYSTEMS DEPENDING ON THE GLOBAL IRRADIATION - A STUDY PERFORMED WITH THE SIMULATION ENVIRONMENT GREENIUS Dr. Volker Quaschning and Winfried Ortmanns Deutsches Zentrum für Luft- und Raumfahrt e.V., Plataforma Solar de Almería, . . .
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