Reporting on environmental targets following GRI

Electricity and gas are still the two most important energy sources, accounting for about 42 percent and 36 percent of total consumption respectively. The share of renewable energies is being continuously expanded and reached around 15 percent in the reporting year, compared to 11 percent in the previous year.

At company-owned sites, about one-third of renewable energy comes from solar power. In China, India and the Czech Republic, Rieter has a total capacity of 6 800 MWh. In addition, Rieter is improving the energy mix at non-company-owned sites by sourcing sustainable energy for heating and cooling from solar power, green electricity, water, biogas and wood pellets.

As a consequence of energy shortages in recent years, Rieter had to resort in some cases to fossil-fueled emergency power generators. Regular maintenance and use increased the burning of fossil fuels from around four percent in 2022 to around seven percent in the year under review.

In 2023, Rieter reduced its energy consumption to 0.0827 MWh per CHF 1 000 of sales. This means that, for the second year in succession, energy consumption is below the target value for 2025 of 0.10 MWh per CHF 1 000 of sales. Compared to the base year level of 0.1697 MWh per CHF 1 000 of sales, the company has halved its energy consumption. In absolute figures, energy consumption in the 2023 reporting year was 117 294 MWh compared to 124 532 MWh in the previous year.

Rieter has improved water consumption for the third year running. Consumption fell from 0.197 m³ to 0.152 m³ per CHF 1 000 of sales. This represents a reduction of around 23 percent compared to the previous year, while sales decreased by around six percent. In relation to the base year 2020, the improvement is actually approximately 64 percent. Total water consumption in 2023 was 215 403 m³ compared to 287 146 m³ in the previous year. Water consumption per capita improved from 75.19 m³ to 68.33 m³, or about eight percent.

Greenhouse gas emissions declined by approximately 33 percent from 50 541 tons of CO₂ equivalents in 2022 to 33 865 tons of CO₂ equivalents in 2023. As a result, greenhouse gas emissions were reduced to 0.024 t per CHF 1 000 of sales in the reporting year compared to 0.035 t per CHF 1 000 of sales in the previous year, a decrease of approximately 31 percent. Compared to 0.069 t per CHF 1 000 of sales in the base year 2020, greenhouse gas emissions have been reduced by around 65 percent. For the second year running, Rieter thus exceeded its target of 0.045 t per CHF 1 000 of sales. Direct emissions from production, known as Scope 1, accounted for only half of one percent of the reduction. This is attributable to the increased use of fossil fuels and gas combined with high capacity utilization of production facilities. Scope 2 emissions, which arise indirectly from energy procurement, accounted for the remainder. This is the result of an enhanced energy mix combined with an improvement in the CO₂ equivalent value of the electricity supplied.

Rieter primarily measures acidification, which is measured in SO_x. SO_x emissions are formed in industrial plants when fossil fuels are burned for the production process. Emergency generators are also used at some sites to maintain production capacity in the event of a power outage. Legally required air purification systems and filters at all Rieter sites help reduce acidification.

Absolute sulfur dioxide emissions (SO_x) were 15.19 tons compared to 9.47 tons in the previous year. For every CHF 1 000 of sales, therefore, the company emitted 0.0107 kg of SO_x, compared with 0.0065 kg per CHF 1 000 in the previous year, an increase of around 65 percent. In the year under review, Rieter only narrowly missed the target set for 2025 of 0.010 kg per CHF 1 000. Compared with the base year 2020, in which the company recorded 0.0144 kg per CHF 1 000 of sales, Rieter reduced emissions by around 25 percent in the reporting year.

At 7.04 kg in 2023, the Rieter sites were once again well below the waste and recycling target for 2025 of 10 kg per CHF 1 000 of sales. This represents an improvement of almost 20 percent compared to the previous year (8.77 kg per CHF 1 000 of sales) and around 38 percent compared to the base year 2020 (11.34 kg per CHF 1 000 of sales). Rieter uses resources sparingly and strives to recycle as much material as possible. Compared to the previous year, the recycling rate increased from around 84 to 86 percent.