Compared to the previous year, energy consumption increased in absolute figures by 3.1% to 252.4 gigawatt hours (previous year: 244.6 GWh). However, energy consumption per tonne of manufactured products was reduced by 10.7% to 1,544 kWh of energy (previous year: 1,730 kWh/t). On the one hand, this shows that well utilised plants result in more efficient production: the quantity produced compared to the previous year rose by 15.6% to 163,396 tonnes. On the other hand, various measures ensured that energy efficiency improved. HOCHDORF Swiss Nutrition Ltd was able to comply well with the cantonal requirements for increasing energy efficiency.
In absolute terms, the use of fossil fuels was reduced by 8.7% to 132.8 GWh at the Swiss plants. This led to a corresponding reduction in the absolute CO2 emissions. Across the whole of the HOCHDORF Group, there was a 17% reduction in CO2 emissions per produced tonne of product to 305.3 kg CO2 (previous year 367.7 kg CO2/t).
Since 2018, the Hochdorf plant has been using reverse osmosis and mechanical vapour recompression, which are powered by electricity, to concentrate milk. Natural gas was used previously to concentrate milk. The employee canteen at the Sulgen plant was connected to the heat recovery system in the reporting year. The building was heated previously using heating oil.