The supply chain accounts for the largest proportion in the product carbon footprint, and industrial decarbonization has a long way to go, which needs the joint efforts of all stakeholders. As a leading enterprise in the field of automation technology and industrial software, Siemens first launched a solution sigreen for product carbon footprint information recording, accurate calculation, trusted sharing and query. It has high operation efficiency, real and reliable information, can realize the trusted exchange of carbon emission data throughout the supply chain, and can be integrated with the enterprise’s own data, So as to obtain the real product carbon footprint information. To this end, Siemens has launched an open and cross industry estanium ecology, which aims to help manufacturers, suppliers, customers and partners realize reliable product carbon footprint data sharing. Based on sigreen, enterprises can realize the transparency of product carbon footprint throughout the supply chain, and then take quantifiable and accurate carbon removal measures. Through carbon emission management, support enterprises to achieve carbon neutralization in production and manufacturing, and help them turn sustainable development goals into decisive competitive advantages.

Members of the Management Committee of Siemens AG Cedrik neike, CEO of Siemens digital industry group, said: “All our customers want to reduce carbon emissions from their products. But first, we need to clarify the carbon emissions in their supply chain and what ways and measures can be taken to achieve the best carbon reduction effect. Sigreen is the credible actuarial and retrospective solution of carbon footprint required by all links of the supply chain. This solution can not only ensure the confidentiality of data, but also bring the required transparency to the supply chain Lightness. The launch of this solution means that we are one step closer to the goal of ‘industrial carbon neutralization’. “

Data accuracy is the key premise to effectively achieve the carbon emission reduction target of the supply chain. Siemens sigreen solution can efficiently and accurately locate the real carbon emission data of raw and auxiliary materials, transportation and manufacturing processes, that is, the carbon emission data synchronized with the supply chain. Sigreen realizes the accurate calculation and traceability of the carbon footprint of a single product, rather than the industry average. Therefore, the credible actuarial and traceability of product carbon footprint (sigreen) has become a “tool” for carbon emission inventory, so as to achieve the carbon reduction goal by taking accurate emission reduction measures.

More than 90% of carbon emissions from industrial products come from supply chain processes. Only through cross link and cross industry cooperation throughout the supply chain can we achieve accurate measurement and carbon reduction of product carbon footprint. In view of this, Siemens launched the estanium ecosystem for exchanging product carbon footprint data among manufacturers, suppliers, customers and partners.

Estanium ecology adopts distributed ledger technology (distributed ledger technology, DLT) to ensure data confidentiality. Enterprises can exchange and share verifiable certificates and relevant certificates of products, and realize the safe and reliable sharing of carbon footprint data throughout the supply chain by verifying verifiable certificates and relevant certificates, while avoiding the disclosure of strategic data of supply chain enterprises, such as supply chain details. Based on Distributed Identity technology (idunion), enterprises can generate verifiable certificates to verify suppliers’ carbon footprint data. Distributed data storage ensures that relevant parties enjoy complete data sovereignty. Compared with the existing carbon footprint calculation methods, Siemens has greatly improved the actuarial efficiency and precision of product carbon footprint by simplifying the communication process between relevant parties in the supply chain and optimizing the carbon emission calculation method Degrees.

In September 2021, Siemens China officially launched the “zero carbon pioneer plan” and announced the company’s clear objectives and action plans in low-carbon development. The trusted actuarial and traceability solution of product carbon footprint (sigreen) provides scientific and technological assistance for the implementation of this plan. Siemens Chengdu Digital chemical plant actively implements the “zero carbon pioneer plan” , promote the carbon reduction process of its own operation, continuously improve the energy utilization efficiency of the production and manufacturing process by using digital and automation technology, and realize energy conservation and emission reduction in the manufacturing process. At present, Siemens Chengdu Digital chemical plant has taken the lead in deploying sigreen, which is based on hours, Accurately calculate the carbon emission data of all core production equipment and related whole manufacturing process of SIMATIC s7-1500 compact products (including direct and indirect emissions). At the same time, by using the trusted mechanism of the blockchain, the factory can safely and reliably obtain the necessary carbon emission data of raw and auxiliary materials from suppliers, so as to realize the accurate calculation and traceability of the product carbon footprint of SIMATIC s7-1500 compact products throughout the whole supply chain, significantly improve the transparency of the carbon footprint and provide a basis for enterprises to further tap the potential of carbon reduction Reliable basis.