Europe’s industrial hubs generate enormous quantities of underused energy, waste streams and industrial by-products that often remain trapped within isolated production systems. At the same time, industries face increasing pressure to reduce emissions, improve resource efficiency and transition towards more circular production models. IS2H4C addresses this challenge by helping industrial clusters unlock the value of shared resources through industrial symbiosis and cross-sector cooperation.
Rather than treating industries as separate entities operating independently, the project promotes interconnected industrial ecosystems where waste, excess energy and by-products from one process can become valuable resources for another. Through practical demonstrations, collaborative planning and industrial optimisation activities, IS2H4C supports the development of more circular and resource-efficient industrial regions across Europe.
What is IS2H4C about?
IS2H4C focuses on improving resource efficiency and circularity within industrial hubs through industrial symbiosis approaches.
The project develops practical solutions that help industries recover, exchange and reuse resources across industrial ecosystems and surrounding communities. These include material streams, excess heat, industrial by-products and other underutilised resources that can create additional environmental and economic value when managed collaboratively.
A central objective of IS2H4C is to identify where industrial symbiosis can deliver the greatest impact within industrial clusters. The project combines mapping, modelling and optimisation activities to help stakeholders better understand industrial resource flows and uncover new cooperation opportunities between industries operating in close geographic proximity.
The project also supports the creation of integrated industrial ecosystems where collaboration between industries becomes easier to implement operationally and economically. Demonstration activities validate how industrial symbiosis can reduce waste, improve efficiency and strengthen sustainability in real industrial environments.
Beyond technical implementation, IS2H4C places strong emphasis on stakeholder engagement and ecosystem building. The project works with industries, regional authorities and local communities to support cooperation frameworks that can enable long-term industrial transition and replication beyond the pilot regions.
The overall aim is to help industrial hubs move away from linear production models towards more interconnected systems where resources circulate more efficiently and industrial activities generate lower environmental impact.
Why IS2H4C matters
Industrial regions remain essential to Europe’s economy, but they also account for significant resource consumption, emissions and industrial waste generation. Many industrial ecosystems still fail to fully utilise valuable material and energy streams that could support more circular and efficient production systems.
IS2H4C contributes to addressing this challenge by demonstrating how industrial symbiosis can transform industrial clusters into more connected and resource-efficient ecosystems. By improving cooperation between industries and enabling better reuse of industrial resources, the project helps reduce environmental impact while strengthening industrial resilience and competitiveness.
Through its practical and collaborative approach, IS2H4C supports Europe’s transition towards cleaner, more circular and more sustainable industrial regions.
This project has received funding from the European Union’s Horizon Europe research and innovation programme under Grant Agreement No. 101138473.
Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the granting authority can be held responsible for them.

