Optimizing LED lamps design for street lighting with staggered arrangement allowing energy saving strategies in a Lighting Smart Grid context

Lighting Systems are suffering an important evolution, due to the incorporation of LED lighting, renewable energy and energy storage capability moving to Lighting Smart Grids (LSG) where efficiency and flexibility are two important requirements looking for energy efficiency. Adaptability of light taking into account geometric dimensions from the target application is one important requirement thinking in energy efficiency. This work keeps in mind the idea of new designs using the concept of sending the light in the correct direction and with the required intensity. New lamps based on power LED must be designed in order to fit these requirements and new tools and design procedures need to be established. Additionally, the easy implementation capability of light level regulation, 0 to 100% is an extremely interesting additional advantage to adequate light level requirements and also to introduce new possibilities through dimming capability according to external environmental conditions or if required. This paper propose a complete methodology for street lighting with staggered arrangement and obtaining advantage of Power LED´s possibilities. Two experimental lamps design for street lighting according to real city geometry (City of Oviedo in Spain) have been proposed in order to validate the established methodology.