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Proceedings Paper

Energy-saving approaches to solid state street lighting
Author(s): Pranciškus Vitta; Rytis Stanikūnas; Arūnas Tuzikas; Ignas Reklaitis; Andrius Stonkus; Andrius Petrulis; Henrikas Vaitkevičius; Artūras Žukauskas
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Paper Abstract

We consider the energy-saving potential of solid-state street lighting due to improved visual performance, weather sensitive luminance control and tracking of pedestrians and vehicles. A psychophysical experiment on the measurement of reaction time with a decision making task was performed under mesopic levels of illumination provided by a highpressure sodium (HPS) lamp and different solid-state light sources, such as daylight and warm-white phosphor converted light-emitting diodes (LEDs) and red-green-blue LED clusters. The results of the experiment imply that photopic luminances of road surface provided by solid-state light sources with an optimized spectral power distribution might be up to twice as low as those provided by the HPS lamp. Dynamical correction of road luminance against road surface conditions typical of Lithuanian climate was estimated to save about 20% of energy in comparison with constant-level illumination. The estimated energy savings due to the tracking of pedestrians and vehicles amount at least 25% with the cumulative effect of intelligent control of at least 40%. A solid-state street lighting system with intelligent control was demonstrated using a 300 m long test ground consisting of 10 solid-state street luminaires, a meteorological station and microwave motion sensor network operated via power line communication.

Paper Details

Date Published: 24 September 2011
PDF: 7 pages
Proc. SPIE 8123, Eleventh International Conference on Solid State Lighting, 81231H (24 September 2011); doi: 10.1117/12.893250
Show Author Affiliations
Pranciškus Vitta, Vilnius Univ. (Lithuania)
Rytis Stanikūnas, Vilnius Univ. (Lithuania)
Arūnas Tuzikas, Vilnius Univ. (Lithuania)
Ignas Reklaitis, Vilnius Univ. (Lithuania)
Andrius Stonkus, Vilnius Univ. (Lithuania)
Andrius Petrulis, Vilnius Univ. (Lithuania)
Henrikas Vaitkevičius, Vilnius Univ. (Lithuania)
Artūras Žukauskas, Vilnius Univ. (Lithuania)


Published in SPIE Proceedings Vol. 8123:
Eleventh International Conference on Solid State Lighting
Matthew H. Kane; Christian Wetzel; Jian-Jang Huang, Editor(s)

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