SCHOTT Achieves First Successes in Climate Neutrality Initiative

In 2020, SCHOTT announced its plan to become climate neutral across its production by 2030. Now, the company is celebrating its first milestones. In spite of the coronavirus pandemic and the major challenges facing the global economy, the technology group has achieved some important goals on its path towards climate neutrality.

In addition to switching to 100% green electricity and making a 60% reduction in carbon emissions, it has also launched important projects to develop more climate-friendly melting technologies. The company has developed a global roadmap to form the basis of this demanding and complex technology change.

Specialty glass production requires a lot of energy. To manufacture CERAN cooktops, pharmaceutical glass tubing, or protective smartphone cover glass, SCHOTT requires temperatures of up to 1,700°C to melt the raw materials for glass. Its melting furnaces have primarily relied on the fossil fuel natural gas. They consume the largest share of energy at SCHOTT, and therefore cause most of its carbon emissions.

“Globally, we are experiencing a lot of economic uncertainties. However, we don’t want these to negatively impact our progress in the fight against climate change. We believe this is one of the most important challenges of our time,” said Dr. Jens Schulte, member of the Board of Management and head of the Zero Carbon program. “We’ve already achieved some important milestones at SCHOTT. In the coming years, we will be setting further ambitious interim targets in order to achieve climate neutrality and are working intensively to reduce our carbon emissions. The current gas crisis will not change our commitment to our sustainability initiatives.”

At the start of the Zero Carbon program, SCHOTT’s global emissions were around one million tons of carbon dioxide equivalents (CO2e). By 2022, the company has reduced its carbon emissions by more than 60%, despite an increase in energy consumption due to production facilities’ high-capacity utilization and the construction of new ones.

SCHOTT’s reduction in carbon emissions is mainly due to its global switch to 100% green electricity. In addition to natural gas, which is mainly used to fire furnaces, electricity is SCHOTT’s largest energy source in terms of volume. To make the switch, SCHOTT is relying on renewable energies through corresponding Energy Attribute Certificates (EACs). In order to make a strong contribution to the energy transition, SCHOTT has committed to using high-quality, independently verified green electricity certificates.

Since 2022, the company also relies on power purchase agreements (PPAs), which make a more concrete contribution to the energy transition. PPAs are contracts with operators of renewable energy plants, such as wind farms. SCHOTT has concluded three long-term contracts with providers in Germany, and is pursuing further opportunities. The company will cover 17% of its electricity consumption in Germany for the year 2023 using PPAs.

SCHOTT’s switch to green electricity marks the first step in its ambitious innovation and transformation process. Since the company wants to eliminate fossil energy use such as gas as much as possible, technology change is its most important and most difficult goal in terms of achieving climate neutral production. However, this ongoing process will take longer than the year 2030.

“At the moment, we are investing a mid-double-digit million euro amount to achieve our climate targets. We are using this money to acquire high-quality green electricity and also research new technologies for decarbonized production,” said Dr. Schulte. “In order to convert our plants to these technologies, we expect to invest significantly higher sums in the coming years.”

In terms of technology development, SCHOTT’s experts are focusing on energy-intensive glass melting. Here, the company is pursuing two transformative initiatives in order to be able to produce its products without gas in the future: electrifying its melting tanks using green electricity and utilizing hydrogen.

In both fields, SCHOTT has launched several research projects that are pioneering work for the glass industry and are partially supported by grant funding from the German government and the European Union. For its hydrogen initiative, the company is planning large-scale production tests at its Mainz site at the end of fall 2022.

“The initial results of our research are really promising,” says Dr. Matthias Müller, head of research and development at SCHOTT. “We are convinced that we can provide an important impetus for the entire glass industry. Therefore, we have been working to intensify our activities in this area.”

“Our technology shift is a marathon and not a sprint. We are working intensively on innovations and investing large sums to ensure that our complex production is ready to go as soon as sustainable energy sources are available on an industrial scale,” explained Dr. Schulte.