Innsbruck (Austria, 130,000 inhabitants) defined its 2025 Energy Plan back in 2009. In this context, and as part of SINFONIA, the city has selected its eastern district to demonstrate the large scale implementation of energy efficient measures, with the objective of achieving on average 40 – 50% primary energy savings in the demo sites and to increase at least by 30% the share of renewables in the district’s energy mix



About 66,000m² of residential and public buildings from the 30s-80s will be retrofitted to dramatically improve indoor quality and energy performance, and reduce final energy demand by up to 80%. Measures include:

  • Improved envelope (insulation, windows, thermal bridges,etc.);
  • Ventilation system with high efficiency heat recovery;
  • Integration of renewable energy sources on-site (PV).





The district heating network will be extended and optimised to increase the use of renewable energy sources and reduce the use of fossil fuels. Measures include:

  • Deployment of a hybrid grid (heat 100 % renewable);
  • Recovery of heat from local industries;
  • Integration of solar energy and innovative biomass gasification.




Smart grids and smart home applications will combine demand and supply side measures to reduce the overall electricity demand. Measures include:

  • Smart load control for water boilers and heat pumps (in hybrid grid);
  • Introduction of an energy management system, which considers solar radiation, temperature and electricity prices as influencing parameters.




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