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Decarbonisation

The glass industry’s transition to carbon neutrality

Decarbonizing the glass industry is one of the sector’s greatest challenges. As it moves toward climate neutrality, the industry is undergoing a profound technical and economic transformation. At the same time, glass manufacturing is one of the most energy-intensive industrial processes in existence.

Energy-intensive production often relies on fossil fuels such as natural gas. At the same time, CO₂ costs, regulatory pressure and demands for sustainable procedures are constantly rising.

An illustration depicting decarbonisation, featuring clouds and a downward-pointing arrow to symbolise the reduction of CO₂ emissions.

The move towards climate-neutral glass production requires technological innovation, alternative fuels and a systematic improvement in energy efficiency. Decarbonising the glass industry therefore involves not only reducing emissions, but also a structural transformation of plants, processes and energy sources.

Industrial glass production, involving melting furnaces and plant infrastructure, as a key starting point for decarbonisation and energy efficiency.

Decarbonization in the Glass Industry: Significance and Goals

Decarbonization refers to the gradual reduction of CO₂ emissions with the goal of making the economy and industry climate-neutral. In the glass industry, this primarily means reducing process-related emissions and gradually replacing fossil fuels.

The goal is to make energy-intensive glass production climate-neutral in the long term without jeopardizing supply security and competitiveness. To achieve this, melting tanks, furnace technologies, energy infrastructure, fuel systems, and process control must be specifically further developed.

Technological drivers of decarbonisation

To reduce energy consumption and CO₂ emissions, the glass industry is relying on various technological approaches. These include more efficient processes, better insulation, and heat recovery systems. A higher proportion of recycled glass also makes an important contribution, as cullet can be melted at lower temperatures and thus requires less energy.

Other key levers include the electrification of melting furnaces and the use of green hydrogen as an alternative to natural gas. However, their implementation depends heavily on local conditions: renewable energy or green hydrogen is not yet available everywhere in sufficient quantities and at competitive costs. Combined with a reliable supply, hybrid or fully electric plants can significantly reduce CO₂ emissions.

A modern industrial plant with pipework and chimneys, serving as an example of technological solutions for decarbonising glass production.
Digital sustainability analysis on a laptop, using indicators for energy, CO₂ reduction and the circular economy as the basis for economic transformation.

The economic dimension of decarbonization

The retrofitting of existing facilities, new burner systems, investments in infrastructure, and fluctuating energy prices are forcing companies to make costly decisions. At the same time, decarbonization offers the opportunity to reduce energy demand in a targeted manner, drive innovation, and secure long-term competitiveness.

The key is a transformation path that combines technical feasibility, economic viability, and regulatory requirements. This makes investments more predictable and enables a sustainable reduction in energy consumption and CO₂ emissions.

Technology partner for decarbonisation

Decarbonizing the glass industry requires specialized expertise and close collaboration among various partners.

These include plant and furnace builders, suppliers of hybrid or fully electric melting systems, specialists in hydrogen technology, experts in energy infrastructure, and consulting firms specializing in industrial transformation strategies.

Business partners have agreed to collaborate on decarbonisation technologies and sustainable transformation strategies in the glass industry.


glasstec as a driver of innovation

From energy-efficient melting technologies to carbon-neutral production

glasstec brings together leading suppliers, technologies, and decision-makers in one place. It showcases solutions for decarbonizing the glass industry – not just individually, but in combination. This creates a solid foundation for strategic decisions on the path to more energy-efficient and climate-friendly glass production.

Discover exhibitors specialising in decarbonisation ❯

An overview of innovations

The trade fair offers decision-makers a structured overview of the current state of decarbonisation in the glass industry – ranging from technological innovations and infrastructure issues to economic implementation models and practical solutions for a variety of applications.

Direct dialogue with experts

Through direct dialogue with plant manufacturers, technology providers and research partners, specific pathways to transformation can be discussed. Practical issues such as reducing energy consumption in glass production or retrofitting existing machinery can be discussed in a practical context.

Investitionen fundiert vorbereiten

Making well-founded investments

When it comes to long-term investment decisions, reliable information, real-world operational experience, and the ability to compare technologies are crucial. glasstec provides the ideal platform for this: it showcases a variety of solutions, facilitates direct dialogue with experts, and helps companies make well-informed investment decisions.

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Review: Everything to do with glass and decarbonisation at glasstec 2024

How is decarbonisation changing glass production? The video features highlights and expert insights from glasstec 2024.

Further technical information on decarbonising the glass industry

The glasstec Magazine offers in-depth analyses, practical insights and technical background information. It features specialist articles on the decarbonisation of industry, energy consumption and energy input in glass manufacturing, as well as innovative approaches to low-emission production processes.

To glasstec Magazine ❯
FEVE report features European decarbonisation projects

FEVE report features European decarbonisation projects

How will the glass industry become CO2-neutral by 2045?

Decarbonization: What companies should know about it
Green PPA Renewable Energy

Green PPAs: Renewable Energy for business

Conclusion: Glass & decarbonisation – an ongoing process

Decarbonisation in the glass industry is not a short-term project, but an ongoing process. Companies that embrace innovative technologies, renewable energy and sustainable plant designs at an early stage strengthen their economic resilience and competitiveness. The glass industry serves as a prime example of the decarbonisation of industry as a whole – it is energy-intensive, technologically sophisticated and innovation-driven.  

FAQ on the decarbonization of the glass industry

Why is the glass industry particularly energy-intensive?

Glass production requires very high melting temperatures. Temperatures in melting tanks consistently exceed 1,500 °C. Many glass furnaces operate 365 days a year, 24 hours a day, because frequent cooling and reheating is technically complex, consumes a great deal of energy, and can put a strain on the equipment. This results in a consistently high energy demand.

What role does hydrogen play?

Hydrogen can replace fossil fuels such as natural gas and reduce CO₂ emissions, provided it is produced from renewable energy sources. However, availability, infrastructure, and cost-effectiveness are crucial factors for its use in the glass industry: so far, green hydrogen is not available everywhere in sufficient quantities or at competitive prices.

Which measures are most effective at reducing CO₂ costs?

Electrification, improved energy efficiency and alternative fuels reduce emissions and the economic burden.

Why is glasstec ideal for companies undergoing a transformation process?

The trade fair is ideal for this purpose, as it provides a forum for discussing specific transformation pathways and solutions in dialogue with plant manufacturers, technology providers and research partners.

Jetzt Ticket kaufen und dabei sein!

Ticket kaufen ❯

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How can energy and resource consumption be reduced and recycling rates increased throughout the glass value chain? The focus is on recycling and upcycling.

 Photo credit:

  • dekarbonisierung-glasproduktion-schmelzofen.jpg | Sviatlana Lazarenka/iStock.com
  • energieeffiziente-industrieanlage-glasproduktion.jpg | coffeekai/iStock.com
  • nachhaltigkeit-energieeffizienz-industrie-transformation.jpgtadamichii/Stock.com
  • technologiepartner-glasproduktion.jpg | vittaya25/iStock.com
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