Energy Data Lab & Energy Planning & Monitoring

The objective of this action is to create and test new services for individuals and businesses, and optimise Nantes Metropole’s public policies on energy through data - especially concerning electricity. The use of the platform started in spring 2017 with the exploitation of electricity consumption data from public facilities managed by Nantes Metropole. The Enedis platform (accessible at this address: after authentication) displays consumption data for a sample of 300 buildings and public lighting cabinets managed by Nantes Metropole. At this stage, two use cases were developed based on electrical data (see here).

In 2017, Nantes Metropole commissioned its urban agency called AURAN to support the development of a metropolitan wide energy master plan. The plan has a 20-year perspective with a view to define the approach to energy production, distribution and consumptions at metropolitan level. The on-going first phase includes a diagnostic of the local energy system and the identification of energy challenges (2017-2018), the second phase will include the definition of energy scenarios and governance (2018-2019).

Through the Energy Data Lab, Nantes Metropole intends to cross the data - recovered from electricity but also later from gas and heat distributors - with those from the land files characterising the buildings of the territory. This type of analysis pre-figures an enhanced decision making support to identify for example energy-consuming buildings and will contribute to the future metropolitan energy plan.

Within mySMARTLife, as a pilot on the demonstration district, a similar analysis is done on the simulation of energy demand in 10-20 years with the support of mySMARTLife partner TECNALIA.

With a portfolio of 93,000 light points and 2,215 buildings (for around 1,700,000 m²) and an annual energy consumption of 160 GWh costing €16M per year, Nantes Metropole and the City of Nantes have a high potential for significant energy and financial savings.

Nantes Metropole acquired and worked on the customisation of a monitoring tool for the production and consumption of all energy flows (electricity, gas, district heating, renewable energy production) in order to measure its annual energy expenditures. This tool allows for better control of invoices, it contributes to the optimisation of energy contracts and provides automatic reports on Nantes Metropole’s energy consumption.