Smurfit Westrock partners with SLR, RIZM to accelerate net zero transition at European mills

EUROPE – Smurfit Westrock has partnered with global environmental consultancy SLR and energy system optimization specialist RIZM to develop detailed, site-specific net zero transition plans for a number of its recycled paper mills across Europe.

The collaboration focuses on translating corporate-level climate commitments into practical, mill-level roadmaps that reflect local operating conditions, energy systems, regulatory frameworks and market dynamics.

Recycled paper mills are among the most energy-intensive assets in the paper and packaging value chain, making decarbonization a critical factor in Smurfit Westrock’s wider Net Zero Transition Plan.

A key driver behind the initiative is the evolving regulatory landscape in Europe, particularly changes to the EU Emissions Trading System (EU-ETS).

The gradual phase-out of free carbon allowances is expected to increase compliance costs for energy-intensive industries, placing greater emphasis on early and cost-effective emissions reduction.

Smurfit Westrock said the site transition plans are designed to mitigate this risk while supporting long-term competitiveness.

The company also cited the need to future-proof its energy strategy in response to recent structural shifts in European energy markets and policy, including volatility in energy prices, grid constraints and accelerating renewable deployment.

Under the partnership, SLR and RIZM deliver an integrated service that combines strategic, technical and digital capabilities.

SLR is leading the overall studies, coordinating stakeholder engagement and providing insight into technology options, regulatory developments and energy market trends.

The consultancy is also running integrated scenario modelling and optimization exercises to identify pathways that minimize total cost of ownership while achieving emissions targets.

RIZM is contributing to its energy system optimization software, which is being used to create digital twins of individual mill energy systems.

These digital replicas enable advanced AI-driven simulations, allowing Smurfit Westrock to test different technology combinations, energy sourcing strategies and investment scenarios.

The approach is intended not only to inform near-term capital planning but also to enhance the company’s long-term digital capabilities for energy management and operational decision-making.

Together, the three parties are developing site-specific transition plans that outline technically and economically viable decarbonization projects tailored to each mill.

The plans define priority technologies, investment requirements, energy sourcing options, cost trajectories and emissions reduction pathways, providing a clear framework for execution.

Smurfit Westrock said the initiative will play a central role in guiding the rollout of its net zero strategy across Europe, supporting compliance, cost control and resilience as the paper and packaging sector navigates tightening climate regulation and a rapidly changing energy landscape.

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