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Energy Express

  • Editor: Bernard Kippelen
  • Vol. 18, Iss. S1 — Apr. 26, 2010
  • pp: A53–A63

30 kW Concentrator Photovoltaic System Using Dome-shaped Fresnel Lenses

Kenji Araki, Taizo Yano, and Yoshio Kuroda  »View Author Affiliations

Optics Express, Vol. 18, Issue S1, pp. A53-A63 (2010)

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A 30 kW concentrator photovoltaic power plant was constructed and has started operation with the following new technologies: A new Concentrating PhotoVoltaic (CPV) tracker developed for high wind area like Korea and Japan by Daido Steel. (The power consumption of the tracking motors was only 19.6 W, namely 0.07% of the rated power.) With improved optics that reduce the mismatch losses associated with optical aberrations, an efficiency of 25.8% was achieved under standard testing conditions (STC) even in a large 23.8 m2 array size. A rapid installation sequence was developed. It was designed for long-term power supply to a local sewage center. Peak power corresponds to 10% of the demand. As a result, the system performance ratio was 0.87, and the capacity factor was 11.7%. The energy generation per rated power was 1,020 kWh/kWp. While it is true that CPV systems perform better in dry and high irradiance areas, our 30 kW system installed in a cloudy area like Japan, showed satisfactory performance.

© 2010 OSA

OCIS Codes
(350.4600) Other areas of optics : Optical engineering
(350.6050) Other areas of optics : Solar energy

ToC Category:
Solar Concentrators

Original Manuscript: March 24, 2010
Revised Manuscript: April 24, 2010
Manuscript Accepted: April 24, 2010
Published: April 26, 2010

Virtual Issues
Focus Issue: Solar Concentrators (2010) Optics Express

Kenji Araki, Taizo Yano, and Yoshio Kuroda, "30 kW Concentrator Photovoltaic System Using Dome-shaped Fresnel Lenses," Opt. Express 18, A53-A63 (2010)

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