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Paris Smart City Projects Target Energy Cuts and Infrastructure Upgrades While Raising Data and Access Questions
Initiatives include a city-wide lighting grid and sensor-driven programs that aim to cut consumption and optimize services, prompting examination of privacy, equity and oversight.
How we reported this

Paris has deployed a smart city-ready lighting grid across its full 105 km² area using a radio network to connect controllers, with a stated goal of cutting public lighting energy consumption by 30 percent. The effort forms part of broader smart city work that also includes AI and sensors to manage lighting, waste collection and traffic.
Scale of the lighting network and energy target
The radio-linked controllers now cover every part of the city. This infrastructure supports the 30 percent reduction target for public lighting energy use. The same network supplies data that feeds into wider resource optimization under the city’s strategy.
Investment history and three-part strategy
Between 2014 and 2020 the city directed €1 billion toward smart city initiatives intended to improve quality of life, strengthen urban attractiveness and lower the carbon footprint. The overall approach rests on three models: an open city that emphasizes citizen participation and open data, a connected city that targets modernized infrastructure with 5G and fiber access by 2025, and an ingenious city focused on resource optimization.
Réinventer Paris and the 2024 experimentation program
The Réinventer Paris project applies AI and sensors to public lighting, waste collection and traffic flows while setting up Fablabs to widen access to digital tools. Starting in May 2024 the Greater Paris Metropolis began an 18-month program to test more than 30 market-ready solutions in mobility, climate adaptation and waste management.
Questions that accompany the deployments
The scale of sensor coverage and AI use in daily services brings forward questions about how data is collected, stored and shared. The open-city model includes provisions for citizen participation, yet the extent of public oversight over the connected infrastructure remains a point of discussion. Access to the benefits of Fablabs and optimized services also raises equity considerations for different neighborhoods.
These projects continue to roll out under the existing investment framework and the three-model strategy. Further details on implementation will come from ongoing reporting by the Greater Paris Metropolis and city agencies.