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Developing an energetically autonomous building

Sustainable Cities and Communities; Affordable and Clean Energy


With more than 50 years of experience taking new technologies from the lab to industry, CEA Tech is poised to drive and coordinate the French government’s innovation-led industrial regeneration policy. TOTEM (TOTal Energy Management) consists in a newly built 400m² RT2012 building, with five Electrical Vehicle charging stations and electric vehicles, offering real services whilst targeting real-time energy self-sufficiency thanks to a specifically developed Energy Management System (EMS). Located near Toulouse in the South-West of France, this office-type building houses an open innovation center and a showroom of CEA technologies. The infrastructure itself is used as a playground to test and demonstrate innovative solutions by R&D teams.

Our challenge 

The aim of the challenge is to optimize the energy consumption in TOTEM. The challenge could include the creation of a numerical model of the energy consumption by creating a set of standardized energy profiles and correction factors based on historical energy consumption data.

Profiling will rely on criteria such as the type of consumption (lighting, office equipment, HVAC, etc.), the type of day (working day, weekend, bank holiday, vacation period, etc.) and any other category deemed useful.

Available information is:

  • The energy consumption data for the building over the last year (by zone, by type of use, by equipment, etc...).
  • The previous work carried that quantifies the consumption of some particular zones of the building as the showroom for example.
  • The planning of uses of the building.

Expected impact

As it is based on measured energy consumption, the developed model is expected to improve the energy consumption forecasts of TOTEM. Furthermore, besides a gain in computation time, its simplicity would allow us to explore new approaches and new algorithms that could not be previously considered. 

Targeted groups

Public actors (French laboratories) private actors (industrials, start-ups, energy clusters…) and civil society (residents, NGOs…) could be involved in this project in one way or another.

The project will be run over a ten-week period:
Week 40: Kick-off
Week 44: First interim presentation
Week 48: Second interim presentation
Week 50: Closing event

Deadline for applications, including a short motivational statement: 15th September 2021





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