Stockholm operates Sweden’s largest street lighting estates including more than 150 000 luminaires. At this scale, lighting control is far beyond switching lights on and off. It has become a critical part of the city’s operational and digital infrastructure, with high requirements for reliability, security, usability, energy efficiency, and long-term governance.
As the city evaluated new lighting control solutions, it became clear that the current approach insufficient. The system needed to meet the same expectations as other city-wide IT infrastructure, including cybersecurity, operational monitoring, scalability, and the flexibility to evolve as technology and city priorities change. Stockholm also required better visibility into its lighting estate, from cabinet-level operations to luminaire performance, enabling more informed decision-making, improved maintenance planning, and greater operational resilience.Stockholm adopted an open and scalable lighting control approach that treats street lighting as part of the city’s broader infrastructure system. Working with GreenStreet, the city established a system that combines cabinet control and monitoring, connected lighting infrastructure, and operational insight within a unified management environment.
Cabinet-level monitoring provides visibility into power supply, switching status, and operational conditions, creating a strong foundation for reliable daily operation and preventive maintenance. Connected luminaires provide additional insight into energy consumption, asset status, and network performance.Immediate visualisation of the lighting estate in Greenstreet supports inventory management and gives operational teams a clearer understanding of infrastructure status across the city.
The platform designed with security, openness, and flexibility as core principles, enable Stockholm to support new applications, adapt to changing requirements, and integrate future technologies without being constrained by fixed functionality or closed systems.Lighting Engineer, Stockholm Municipality
Today, Stockholm manages street lighting as a strategic city infrastructure asset rather than a standalone technical system. By applying IT principles to lighting control, the city has created a secure, scalable, and adaptable foundation that supports both everyday operations and long-term planning.
Cabinet monitoring provides greater operational visibility, while connected lighting data enables more efficient maintenance, improved fault handling, and ongoing energy optimisation. The system also gives the city the flexibility to respond to changing priorities, whether related to sustainability, biodiversity, skyglow, public safety, urban quality, or future smart-city initiatives.
Stockholm’s experience demonstrates that smart lighting at large city scale is not simply a product deployment. It is the combination of operational infrastructure, digital governance, and long-term city planning brought together in a single, flexible lighting system.
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