Benefits of metering and intelligent control in energy savings of public street lighting - UA Smart Campus use case

Abstract

We describe an intelligent lighting solution suitable for public spaces. The proposed design optimally combines sensor information, LED based lighting, and dynamic control. Departing from this set of starting objectives, project LITES (funded by the EC CIP-ICT-PSP framework) proposed the development of an intelligent lighting solution suitable for public street lighting. This solution was based on the usage of motion sensors as means to control the luminous flow. Following this approach, the lighting necessities are adapted to the actual necessities, thus enabling to reduce energy spent on lighting. The solution was designed to be compliant with enforced EU lighting regulations [1, 2] demanding a minimum lighting flux due to security reasons, and was tested under real live scenarios in three pilots spread on the European space (Municipality of Bordeaux, Riga Technical University and Universidade de Aveiro). This paper focus on the results achieved by the pilot installed in the Universidade de Aveiro (UAV), which highlighted after one year of continuous work that more than 65% energy savings are within reach of currently available technology.