published at 21/10/2014

S2E2, Smart Electricity Cluster

The S2E2 cluster - Tours
Labelled a competitive cluster in 2005, the S2E2 cluster contributes to the emergence of novel technological solutions, new products and services in the domains of energy efficiency and renewable energies.
Formation :

The competitive cluster for electrical and thermal energy management

The S2E2 cluster aims to favor competitiveness in the West of France regions - Centre-Val de Loire, Nouvelle-Aquitaine and Pays de la Loire.  The cluster fosters innovation and stimulates collaboration between companies and laboratories in the form of R&D projects, whose spin-offs are growth drivers for these companies on the market.

S2E2 gathers over a hundred members: companies, SMEs and groups, research and training organizations. All of them invested in the domains of intelligent electricity technologies. These technologies aim to optimize management of electric and thermal energies.

The S2E2 cluster is an essential partner, supporting the development of its members through innovation and assisting them in strengthening their network

Our goal

  • Create and support collaborative R&D projects between companies, research centers and training organizations 
  • Contribute to the development of training courses in the cluster’s domains
  • Provide our members with innovation tools and supports to enhance their competitiveness and their visibility
  • Favor the sharing of technological skills
  • Gradually switch from the “project factory to the product factory"
  • Participate in the dynamism of our region
  • Enhance the prestige of our projects’ economic spin-offs


  • 189 members*
  • 128 companies including 71 SMEs*
  • 11 colleges: Orléans, Tours and Nantes Polytechnic, INSA centre Val de Loire, Supelec, ESEO*, CNAM, ICAM, Ecole centrale de Nantes
  • 6 public establishments: BRGM, CEA, CERIB and CNRS*
  • 200 financed projects under development or successfully completed
  • € 423m in investments 

*Figures drawn up on 1er January 2018

€ 423m in investments in public and private R & D