Industrial Clusters: Implementation Engines of the Energy Transition and Economic Growth

Industrial decarbonization is crucial for achieving climate goals, with industrial clusters emerging as key sites for large-scale initiatives. A whole systems approach, integrating technology, environment, finance, policy, and community involvement, is essential for successful decarbonization. Five critical enablers drive successful industrial cluster decarbonization: whole systems integration, a champion, green finance mechanisms, a social license to operate, and an ecosystem of innovation.

Industrial Decarbonization

Industrialization has constituted a central engine of global economic growth, commencing with Europe’s 18th-century industrial revolution, intensifying through Asia’s rapid industrial expansion from the 1960s onwards, and continuing in the contemporary development trajectories of emerging markets and developing economies (EMDEs). Industry also contributes significantly to CO2 emissions, accounting for up to 40% of global emissions. While industrial decarbonization is crucial for achieving climate goals, the approach varies across economies due to differences in industrial profiles.

Industrial clusters, also known as industrial hubs or corridors, are emerging worldwide as key sites for large-scale decarbonization initiatives by using comprehensive whole systems strategies that combine technology, environmental concerns, social factors, and economic and policy considerations.

Industrial clusters are groups of high-emission facilities that function as integrated systems, sharing infrastructure, supply chains, workforce, and governance beyond just being located near each other. There are over 10,000 industrial clusters worldwide. It has been estimated that transitioning just 100 of these clusters could lead to a 15% reduction in global industrial emissions or as much as a 5% decrease in total global CO2 emissions. Moreover, such a shift has the potential to create approximately 18 million jobs and add $2.5 trillion to the global GDP. Clusters exhibit significant diversity worldwide. For instance, the Port of Açu in Brazil is evolving into an energy hub for clean fuels, including hydrogen, green ammonia, e-methanol, and sustainable aviation fuel; HyNet North West in the United Kingdom is at the forefront of infrastructure development for hydrogen production and carbon capture; and the Mumbai Green Hydrogen Cluster in India focuses on reducing industrial emissions within the Mumbai Metropolitan Region.

Whole Systems Approach to Industrial Decarbonization

Industrial decarbonization relies on a whole systems approach that coordinates technology, environment, finance, policy, and community engagement. This comprehensive strategy is fundamental to tackling the complex issues of industrial decarbonization and closing the implementation gap required to achieve climate objectives. Decarbonizing industrial clusters similarly requires integrating operations, technology, environmental factors, financial structures, policies, and active regional participation. Moreover, comprehensive whole-systems analysis uncovers systemic bottlenecks, pinpoints sequencing and lock-in risks, and guides policy development.

The UK’s Industrial Decarbonization Research and Innovation Centre (IDRIC) is pioneering a whole-systems approach to decarbonizing industrial clusters that leverage synergies through a place-based approach that can unlock decarbonization at scale, ensuring innovations are not only technically sound, but commercially and socially viable. IDRIC acts as a national integrator, fostering collaboration among academia, industry, government, and communities in order to combine science, engineering, economics, social science, and policy to drive practical and equitable solutions for net zero.

By collaborating with academia, industry, government, and a wide range of stakeholders, IDRIC has supported 100 research and innovation projects in areas like carbon capture, transport, utilization, and storage (CCUS), hydrogen, electrification, waste-heat use, and socio-economic transition. Key outcomes include open-source infrastructure toolkits, modelling frameworks for CO₂ and hydrogen networks, assessments of decarbonization impacts, and resources for policy engagement and workforce reskilling.

Moreover, a whole systems approach to industrial decarbonization offers interconnected co-benefits, including coordinated services, multidisciplinary teams, and a shared vision. This approach accelerates decarbonization, addresses implementation challenges, and generates employment opportunities, strengthens community resilience, and improves public health outcomes.

Enablers for Successful Industrial Cluster Decarbonization

Industrial clusters demonstrate that pursuing climate goals can lead to job creation, increased exports, and greater resilience, proving that social and economic progress can align with pathways to 1.5 °C. Through IDRIC’s collaborative engagement with organizations across more than 25 countries, we have identified several critical factors that drive successful decarbonization in industrial clusters. Importantly, these successes arise from a combination of key enablers rather than isolated policy efforts. Successful industrial clusters tend to emerge where several critical enablers align, creating the conditions for coordinated investment, innovation, and long-term resilience:

1. Decarbonization is a system challenge, rather than a technology substitution problem. Therefore, effective cluster decarbonization requires whole systems integration that deploys integrated planning tools connecting low carbon technologies (including renewables, carbon capture, utilization and storage (CCUS), hydrogen, etc.) with industrial demand and infrastructure needs, as well as policy support and regulatory frameworks.
2. Every successful cluster requires a champion capable of coordinating multiple actors. This champion (a dedicated key stakeholder, cluster body, development corporation, or consortium) provides strategic direction and ensures alignment between industry, government, research institutions, and the public. A clear governance framework accelerates decision-making, reduces duplication, and supports long-term accountability.
3. Green finance mechanisms are essential. Transforming heavy industry involves high upfront costs and significant risk, particularly in the early stages. Blended finance, guarantees, concessional loans, and supportive regulatory frameworks can de-risk anchor projects that serve as catalysts for broader cluster activity. Without these early anchor investments, clusters may struggle to mobilize private capital at scale.
4. Industrial clusters succeed when they earn and sustain a social license to operate. Community engagement, inclusive decision-making, and a focus on just transition principles ensure that local residents benefit from new economic opportunities. This means prioritizing local jobs, workforce development, and training pathways that equip people with the skills needed for emerging clean industry roles.
5. Successful industrial clusters nurture an ecosystem of innovation. This includes public-private funding to support research and innovation, as well as to develop testing infrastructure to establish standardized metrics. Transparent data-sharing accelerates learning, builds trust, and helps clusters measure progress toward decarbonization and competitiveness.

Together, these five enablers create industrial clusters capable of delivering economic growth, emissions reduction, and long-term sustainability.

Acknowledgements

This work was supported by the UK Industrial Research and Innovation Centre (IDRIC), through awards EP/V027050/1 under the UKRI ISCF Industrial Challenge/ Industrial Decarbonization Challenge (IDC) and also EPSRC award EP/Z53125X/1.

Prof. M. Mercedes Maroto-Valer is Director at the UK Industrial Decarbonisation Research and Innovation Centre (IDRIC).

About the Council of Engineers for the Energy Transition (CEET)

This article is part of the Energy Insights Series published by the Council of Engineers for the Energy Transition (CEET). The CEET is a global, high-level body of engineers and energy systems experts, created under the auspices of the United Nations Secretary-General, with the goal of building coalitions and energy pathways for comprehensive decarbonization.

It should be acknowledged that these materials are for discussion purposes only, given the rapidly changing landscape of the energy transition and the various contexts in which they are relevant. CEET members are participating in their individual capacity and expertise without remuneration. Their professional affiliations are for identification purposes only, and their views and perspectives, including any statements, publications, social media posts, etc., are not representative of the United Nations, SDSN, or UNIDO.