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TetraEner: Optimal Balancing of Demand and Supply Through RES in Urban Areas

Project Details

Project date: 
November, 2005 to November, 2010
Contact Person: 
José Ramon Lopez

Ente Vasco de la Energia (EVE)

Budget Information

EU contribution: 
Total cost : 
Funding programme: 

Pilot Cities

  1. San Sebastian
  2. Geneva

Early adopter cities

The TETRAENER project was based on the premise of creating residential communities where external energy dependency is reduced by optimising the supply/demand balance through an improvement in energy efficiency and the use of renewable energy sources, together with demand monitoring and control applications. TETRAENER encompassed two new urban developments in the cities of San Sebastian (Spain) and Geneva (Switzerland) and one observer community in Frankfurt (Germany).

Demonstration Sites

These communities offered a series of synergies with regard to the priorities set out in the CONCERTO initiative:

Large-scale integration of renewable energy sources:

  • biomass installations,
  • high efficiency solar thermal systems,
  • photovoltaic-solar systems,
  • wind installations integrated in residential areas, and
  • harnessing of Lake Leman as a heat source in Geneva.


  • Passive solar energy harnessing criteria,
  • targets of maximum energy efficiency,
  • integration of RES, and
  • application of innovative legislation.

SRT data