Abstract

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

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References

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Other (4)

A. W. Bett, F. Dimroth, W. Guter, R. Hoheisel, E. Oliva, S. P. Philipps, J. Schöne, G. Siefer, M. Steiner, A. Wekkeli, E. Welser, M. Meusel, W. Köstler, and G. Strobl, “Highest Efficiency Multi-Junction Solar Cell for Terrestrial and Space Applications”, Proc. 24th EUPVSEC, (2009), 1.

A.W. Bett, F. Dimroth, W. Guter, J. Jaus, P. Nitz, E. Oliva, G. Peharz, S. Phillips, J. Schöne, T. Schult, G. Siefer, M. Steiner and E. Welser, “Raising the Efficiency of FLATCON®Modules”, 5th ICSC (2008).

J. Monedero, and F. Dobon, “Two-Axis Tracking System TETRA-TRACK: System Description and Study for Optimized Space Factor”, CDROM of International Solar Concentrator Conference for the Generation of Electricity or Hydrogen, (2003)

P.J.Pérez, G.Almonacid, J.Aguilera, P.G.Vidal, J. de la Casa, I.Luque-Heredia, M. Doménech. “Multi-trackers Systems Calculation of Losses due to Self-shadowing”, 4th ICSC, (2008), 201.

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