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Table 1: Comparison table of energy consumption for two types of road classification using traditional and new lamps sources
Tested: Siteco test road – Traunreut, Germany Nov 08
Classification of road Traditional lamp type used Energy consumption per km in kWhr/per year New lamp sourceenergy consumption per km in kWhr/per year energy savingenergy saving with dimming (i)
ME4b70W HP sodium 9.2986x 1W LED(ii) 7.84 16%27%
S450W HP 7.3986x 1W LED(ii) 5.624%43%
(i) based upon varying levels of dimming and number of hours
(ii) with Siteco DL10 luminaire
source: Siteco lighting Nov 2008