Smart energy forms the basis for resource conservation in the operation and management of cities, neighbourhoods, sites and buildings. The most important components of overall smart energy systems are energy storage units and demand-driven management systems that ensure the efficient use of renewable energy sources. The combination of various storage media enables both short and long-term energy storage.
SBB’s traction current infrastructure consists of numerous energy production facilities and storage systems. SBB’s energy division already ensures reliable and sustainable delivery and distribution of energy in a manner that conserves resources. With solar panels mounted on roofs, facades and even noise barriers, as well as local storage solutions, SBB has the potential to transform itself from an energy consumer into an energy producer at its sites and buildings as well. Such a development would increase the energy supply available to SBB and might even result in a positive energy balance.
Switzerland’s Energy Strategy 2050 programme calls for the gradual conversion of the country’s energy supply to renewables by 2050, as well as a reduction in energy consumption of nearly 50 per cent from the 2000 level by 2035. As an environmentally conscious company, SBB is committed to achieving these targets in cooperation with residents and communities. Within the framework of “The Confederation: Exemplary in Energy” initiative and the Energy Strategy 2050 programme, SBB is serving as a role model for energy efficiency and the promotion of new renewable energy sources.
SBB maximises energy efficiency and contributes to the achievement of the 2,000-watt society.
- SBB is developing its energy networks into smart grids that efficiently manage energy production, storage and use.
- SBB promotes the use of new renewable energy sources and the establishment of energy associations.
- SBB also supports self-consumption communities and develops energy-plus houses and buildings.
The new reality: District heating centre for energy efficiency and sustainability, Zurich-Altstetten.
Up until just a few years ago, waste heat from the data centre in Zurich Herdern was released into the environment without being used. Today, this waste heat is linked to a geothermal system that supplies environmentally friendly heat and air conditioning to SBB buildings at the WestLink and Letzibach site developments near Altstetten station, as well as to other buildings. This set-up is made possible by an energy association created by ewz – the Zurich Municipal Electricity Service – which was facilitated by SBB’s site developments.
The process utilised at the association’s energy centre has reduced CO2 emissions by 3,000 tonnes per year. Through the implementation of the Minergie standard at its sites, and its membership in the energy association, SBB is making an important contribution to energy efficiency and sustainability and thus assuming ecological responsibility on the road to the 2,000-watt society.