COMPARATIVE ANALYSIS OF THE SOLAR DISH ELECTRICITY PRODUCTION

Abstract

Round parabolic solar mirror is often called the solar or sun dish. Even when the dish is faceted into several smaller dishes (facets) which are all focusing the sunlight in the single point (focus), it is called a solar dish. When solar radiation to electricity converter is mounted into the dish focus and the sun-tracking system is provided, it could be named solar dish/converter system. Depending on the sort of the converter, two promising systems which are approaching the commercialisation could be mentioned. These are solar dish/Stirling system and solar dish/ photovoltaic (PV) system. In this paper, majority of the technical and economical aspects of the two systems are examined and compared. Two systems are chosen to represent this: SAIC/STM SunDishTM, solar dish with Stirling heat engine/generator, and Solar Systems SS20TM representing solar dish with concentrating photovoltaic (PV) converter. It is concluded that solar dish with concentrated PV converter can have much better cost/performance ratio. It is also concluded that recently introduced thermoacoustical converter and PV cavity converter, probably designates future development of the solar dish systems. World's potential of installing solar dish systems according to geographic and climate conditions was estimated. Also, the number of solar dishes which could, installed in Croatia, cover yearly state's electricity consumption was calculated.

Keywords

Dates

  • Submission Date2005-04-27
  • Revision Date2005-07-25
  • Acceptance Date2005-08-31

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