The use of Artelys Crystal City allowed the Metropolis of Grenoble Alpes to analyze the impact of potential actions and produce a concrete and concerted plan to reach the following targets by 2030 :

Greenhouse gases

Nitrogen oxides


Renewable energy and energy from waste

Energy consumption







The calculations in Artelys Crystal City allowed for a detailed (hourly time resolution over a whole year, at IRIS level) and complete (all sectors, uses, types of energy) simulation of the energy system of the territory. The study has been organized in three steps:

• a current state review of the consumption, production and networks
• the elaboration of a demand evolution scenario including concrete actions of energy sobriety and efficiency in all domains (engagement of citizens, renovations, transportation, etc.)
• the elaboration of an energy mix evolution scenario including the renewable energy generation technologies that are the most suitable to the different zones of the territory, their densities and their energy networks.

A particular attention has been devoted to the analysis of the district heating network in order to ensure it serves as one of the drivers of the energy transition with the aim of increasing the share of renewable energies and energies from waste and guaranteeing its profitability.

The scenarios have been compared by taking into account a great number of environmental and economic criteria (pollutant emmissions, renewable energy generation, investment costs, the energy bill in 2030, etc.).

This study has allowed to build a strong link between the energy actors of the territory and to place the metropolis at the heart of the energy transition, with the participation of local agencies, network operators, researchers, elected representatives and citizens.

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