Abstract
The optical efficacy of light emitting diode (LED) has exceeded 72 lm/W in 2006. This implies that energy can be saved about 75%, as compared to mercury lamps used in roadway lighting. In some remote areas where the grid power cannot reach, solar-powered lighting using high-power LED provides a promising solution. However, the cost of solar photovoltaic device may cause the application of solar-powered LED roadway lighting to be not economically feasible.
The present study investigates the design of the solar-powered LED roadway lighting using high-power LED luminaire (100W) and estimate the installation cost for 10 km highway with 2 lanes. LED luminaries are installed on both sides of the road with staggered arrangement. The pole distance is 30m. The cost comparison of LED lighting using grid and solar power with the conventional mercury lamps was carried out. It shows that the installation cost is 22.48 million USD for LED lighting powered by grid power and 30.91 million USD for solar-powered. The total installation cost of conventional mercury lighting is 18.82 million USD. The excess cost of LED mainly comes from the cost of LED lamp and solar PV. But, the cost of power generation and electrical transmission line can be greatly reduced since about 75% energy was saved for LED. This permits the use of smaller copper wire and shorter line length for solar-powered system which in turns saves installation cost. The payback period for the excess investment of LED is 1.2 years for LED using grid power and 3.3 years for LED using solar power.
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References
B. J. Huang, M. S. Wu, C. J. Wu, “Development and field test of a long-lasting solar LED lighting system”, Word Renewable Energy Congress IX August 19–25, 2006 p. 590.
Jeffrey Singer, Scott Mangum, John Lundberg, “Lighting trends and challenges for the aviation market”, Sixth International Conference on Solid State Lighting, 2006, SPIE Vol. 6337, 633712
B.J. Huang, C.H. Wang, T.T. Lin, H.H. Huang and Y.Y. Yeh: Development of a low-cost LHP for commercial application. 13th International Heat Pipe Conference, Shanghai, China. Sept.21-25, 2004.
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© 2008 Tsinghua University Press, Beijing and Springer-Verlag GmbH Berlin Heidelberg
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Huang, B.J., Wu, MS., Huang, H.H., Chen, J.W. (2008). Economic Analysis of Solar-Powered Led Roadway Lighting. In: Goswami, D.Y., Zhao, Y. (eds) Proceedings of ISES World Congress 2007 (Vol. I – Vol. V). Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-75997-3_83
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DOI: https://doi.org/10.1007/978-3-540-75997-3_83
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-75996-6
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