One year after DataCity, the collaboration continues - EGREEN - Datacity

One year after DataCity, the collaboration continues – EGREEN

The City of Paris tells us everything on its collaboration with eGreen, after DataCity Paris 1st edition

Sabine Romon – In charge of the Smart and Sustainable City initiative, City of Paris

Iman Ahmed – Junior Innovation Program Manager, NUMA

In 2016, NUMA and the City of Paris launched DataCity: 5 challenges, 5 companies, and 5 startups ready to meet the challenges of the city of tomorrow. Among them, Egreen and Qucit.

The first took up the challenge “How to change energy consumption behaviors” with Suez, and the second “How to predict the impact of public space design on pedestrian comfort” with Cisco. As the DataCity season 2 comes to an end, NUMA wanted to tell you about the journey and to present the fruitful collaborations that were born with the City of Paris.



“By attending the creation of Egreen’s POC in DataCity, we have seen real potential for internal projects”


eGreen participate in DataCity Paris 1st Edition


Within DataCity, Egreen and the City of Paris did not work directly together. By observing the project co-built between Egreen and Suez, the Paris City Council found that Egreen’s approach would also be relevant for projects in the city’s maturation.

After DataCity, as part of a consultation launched to reduce energy consumption in the city’s administrative buildings, the Paris City Council contacted Jérémie Jean, the CEO of E-green, to propose a response. The purpose of the mission? Co-build with the building managers a tool to raise awareness on the reduction of energy consumption, and launch a challenge between the floors to encourage more sustainable behaviors.

“The key is that they have managed to keep their agility. They are closer to the need of their users, which changes the performance. There is a real exchange.”


Egreen fully understood the expectations of the Paris City Council, was selected for this mission which began in March and will last for a year. Egreen supports the users of the administrative building (Youth and Sports Directorate) by working with them on behavioral actions to reduce the energy consumption of the building. After installing a system for measuring consumption, they were able to analyze it, and made the data visualisation available to building users so they can understand the impact of routine behaviors on energy consumption.

The collaboration is going very well, user engagement is remarkable, Egreen’s action has even increased the social ties within this building, the creation of tools and the challenges between floor being as much opportunity to exchange on the subject of eco-interests.

One of the keys to this success is the agility and involvement of Egreen. They have invested a lot and have been present with the building managers and building users, motivated them in the process, also establishing a fruitful relationship with the communication team, and the technical teams in charge of the building.

They were able to avoid positioning themselves as a simple service provider following word for word a bill of specifications that do not always anticipate the vagaries of implementation, and have remained in a co-construction approach, maintaining their proximity with the needs of their client.

The current success of this collaboration between the Paris City Council and Egreen is certainly due to their joint participation in DataCity. Within DataCity they have adhered to the same philosophy of open innovation, this alignment of objective seems essential today.

“Since DataCity, Egreen has evolved in its approach to energy issues, they have been able to build skills on new subjects”


While Egreen’s solution for DataCity was based on gamification, they were able to evolve and take into account the innovative approaches of “nudges” to meet their clients’ needs. They have thus reinforced their expertise in user engagement, which could result in “boost” or “soft incentive”. This method, based on cognitive sciences, results in the creation of an incentive to modify, without having to think about it, once behavior, for example by means of stickers displayed.

“The ultimate goal would be to extend to other buildings”


The first phase of co-construction has passed, Egreen and the City of Paris have made an initial assessment which showed the success of this first stage. Then will begin the preparation of the winter campaign on the same building, whose variables are more complex, adding heating to the electricity consumption. The real challenge here is to stay on track and be able to keep the motivation and involvement of building users for 2 seasons. Depending on the outcome of the experiment, the Paris City Council plans to extend this methodology to other buildings.

The collaboration of Egreen and the Paris City Council is a clear example of how a smart city solution can be implemented following the experimentation conducted within the DataCity open innovation program. By multiplying experimentations, DataCity aims at opening doors to innovative ways of designing the cities of tomorrow. DataCity now expands to new horizons, programs are already running in Paris and Casablanca, and other cities will be disclosed soon, seeing the DataCity program implemented in Europe, Asia, Africa and the Americas. Thus, solutions will be shared amongst participating cities, building an international network of open innovation programs on smart cities, and sharing solutions amongst participating cities.

Stay tuned!


Written by:

Iman Ahmed, Innovation Programs Manager, NUMA


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