Smart Management

Smart management provides networking and intelligent control that enhances the performance of the system that is applied to, thanks to real-time monitoring and management. When applied to public lighting with Light Emitting Diodes (LEDs), it can increase energy savings and other benefits that this technology can give, but the system can be further implemented to be used to enhance public safety, transport, health and prepare the community to be SMART (Specific, Measurable, Achievable, Realistic, and Timely).

This Solution is directed to local governments that are exploring or that have already decided to implement a smart street lighting system (either in an existing public lighting with LEDs or in retrofitting project from conventional lighting to LEDs). It is relevant to local governments that are responsible for the street lighting service in their communities and rural areas, particularly if they are also the infrastructure and asset managers. This solution provides general guidance on all stages of implementation but places a focus on the procurement stage, which is one that often requires significant resources and expertise from municipalities; it stresses on the critical aspects that local governments need to consider and assess when procuring a smart lighting system.

Motivation / Relevance

Public street lighting is crucial to ensure the safety and security of drivers and pedestrians in cities and towns across the world and an important condition for socio-economic activities after dark. Public lighting can contribute close to 40% of a city’s annual electricity bill. LED street lighting is currently the most energy-efficient and cost effective option and can deliver between 40-60% in energy savings, depending on the systems replaced, and when connecting light points to a smart management systemenergy savings increase of an additional 30%. This system can support cities to meet their ambitious targets in energy savings and sustainability, by reducing cities greenhouse gas (GHG) emissions and bringing several economic and social benefits and co-benefits.

Smart lighting also provides a platform that can support several non-lighting applications, supporting cities in their path to becoming smarter, contributing to other areas such as public safety, traffic management, public health, comfort, etc. With these added benefits, comes and added complexity for municipalities reflected in the procurement processes that are the route for delivery, despite of this complexity, procurement procedures are often in control of local governments, enabling them to implement effective procurement systems that translate in successful project delivery and that can promote sustainability and innovation.

Main impacts

The main impacts of LED street lighting have already been mentioned in the LED retrofit solution, please see a selection of other impacts associated to smart street lighting:

  • Improvement in energy optimization and grid management due to the availability of real-time data on energy usage (R. Elberg, 2017);
  • Increased community safety thanks to real time management of lighting system in case of system failure;
  • Easy reporting of consumption and performance which allow the local government to directly input real data into monitoring emission inventories at the community level;
  • Opportunity to accelerate urban innovation because connected lighting offers a more dynamic and interactive system that fosters innovation processes;
  • Opportunity to advance in the pathway to becoming a smart city because smart lighting can enable the implementation of other smart infrastructure. Multi-application platforms can be supported by the lighting network providing other services that contribute to public safety, improvement of sustainability, business proliferation, etc.;
  • Potential to generate revenue for the city associated with the network and additional services that it can support.

Benefits and Co-Benefits

As in the case of the main impacts, the direct benefits from LED street lighting have already being addressed in the retrofit solution. These benefits can be further enhanced result of improved monitoring capabilities: please find below a list of smart lighting benefits related to lighting management and city platform applications:

  • Precise measurement of energy consumption as opposed to scenarios where electricity is not metered;
  • Enhanced energy savings through adaptive brightness levels as needed, according to e.g. traffic volumes, street activity and weather conditions;
  • Remote performance monitoring that avoids the use of patrols to identify malfunctioning lights, contributing to timely reparations;
  • Color and level of lighting adjustment that can be applied for public safety purposes and/or different areas and needs within a city;
  • Features for emergency response to handle public safety issues and emergencies like warning flashing lights in case of need;
  • Mitigation of impacts of artificial lighting in human sleep and certain species migratory patterns by offering the possibility to eliminate parts of the lighting spectrum that have these impacts (IPWEA (SLSC Programme), 2017);
  • Supporting other non-lighting applications as part of the Internet of Things (IoT) solutions for smart cities like environmental monitoring, traffic monitoring and traffic light control, smart parking, smart waste management, public messaging, video surveillance, etc.;
  • Maintaining safety of public infrastructure through computerized asset management techniques;
  • Flexibility to address issues according to local needs, priorities, opportunities and challenges by providing capabilities that enable innovative approaches to improve city services (R. Elberg, 2017).