25 TH INTERNATIONAL CONFERENCE ON INFORMATION SYSTEMS DEVELOPMENT (ISD2016 POLAND) 55 Estimation of Energy Consumption in Street Lighting using Mobile Devices Jose-Maria Gutierrez-Martinez josem.gutierrez@uah.es Computer Sciences Department, University of Alcala Alcalá de Henares, Spain Ana Castillo-Martinez ana.castillo@uah.es Computer Sciences Department, University of Alcala Alcalá de Henares, Spain Jose-Amelio Medina-Merodio josea.medina@uah.es Computer Sciences Department, University of Alcala Alcalá de Henares, Spain Alberto Gutierrez-Escolar alberto.gutierreze@uah.es Computer Sciences Department, University of Alcala Alcalá de Henares, Spain Zlatko Stapic zlatko.stapic@foi.hr Faculty of Organization and Informatics, University of Zagreb Varaždin, Croatia Jose-Manuel Medrano-Martinez josemanuel.medrano@edu.uah.es Computer Sciences Department, University of Alcala Alcalá de Henares, Spain Jose Manuel Gomez-Pulido jose.gomez@uah.es Computer Sciences Department, University of Alcala Alcalá de Henares, Spain Jose-Javier Martinez-Herraiz josej.martinez@uah.es Computer Sciences Department, University of Alcala Alcalá de Henares, Spain Abstract The growing energy consumption is not sustainable in the long run. Taking into account that street lighting is one of the highest energy consumers in cities, this paper aims to develop a methodology to estimate the energy consumption of these installations with as few input variables as possible. In addition, the paper presents a mobile application developed to help lighting managers not only on the energy consumption evaluation, but suggesting the possible improvements on current systems which can save energy in case that they are implemented. Keywords: Street-lighting, Energy-consumption, energy-saving, light methodology, mobile 1. Introduction Street lighting plays an important role in cities promoting comfort, as well as enhancing safety and security [29]. However, this service is one of the main energy consumers in local governments’ areas with 30-60 percent of greenhouse gas emissions [13]. Such high level of emissions, joined with the fact that energy saving has become an urgent environmental concern to be addressed by current society, have caused advances on the technology used by street lighting devices, improving quality of lighting, removing light pollution or changing standards. If we analyze the case of Spain, energy consumption by street lamps is one of the highest in the European Union, with an average of 157W per lamp, well above the United Kingdom‘s 76W or Netherland’s 61W [33]. Furthermore, most of towns do not have dimmable lightings; to give an example, the percentage of installations in Andalusia without this kind of systems is 64%