Energy efficiency and CO2 emissions

In % except where indicated   2015   2014   Change
Energy consumption (in GWh)   521   497   4.8%
Increase of the efficiency of energy to 1 January 2010   29.6   26.4    
Direct CO2-emissions (in tons)   20,115   21,380   –5.9%
Reduction of direct CO2-emissions to 1 January 2010   23.5   17.0    

Swisscom is striving to boost energy efficiency and rely more on renewable energies in order to minimise the environmental impact of its business activities. In Switzerland, Swisscom targeted a 25% rise in its energy efficiency as compared to 1 January 2010 by the end of 2015, and then a further increase of 35% between 1 January 2016 and 2020. The increase will be achieved primarily by measures in the network infrastructure area. Swisscom also targeted a 12% reduction in direct CO2 emissions in Switzerland by the end of 2015. This reduction is to be achieved primarily through measures related to employee mobility and the infrastructure.

In 2015, total energy consumption in Switzerland rose by 24 GWh or 4.8% to 521 GWh. The rise in energy consumption due to the greater number of data centres was not fully offset by energy savings in other areas. However, energy efficiency increased versus 1 January 2010 to 29.6% (prior year: 26.4%). This improvement was largely achieved by efficiency enhancements in data centres and the Mistral energy saving project (the use of fresh air to cool telephone exchanges). In 2015, direct CO2 emissions in Switzerland fell by 1,265 tonnes or 5.9% to 20,115, chiefly due to reduced consumption of heating oil. This resulted in a reduction of 23.5% in direct CO2 emissions versus 1 January 2010.