INSPIRATION

Luxembourg is at a turning point in its energy transition: a small but highly interconnected country where every choice—about electricity, heat, gas, or hydrogen—ripples through the whole system. Guided by the Pacte national Énergie Climat (PNEC), which sets ambitious targets for cutting greenhouse gas emissions and expanding renewables by 2030, the country must balance sustainability with resilience, affordability, and fairness.
Achieving these goals requires more than technology: it calls for trusted data, advanced models, and active collaboration among policymakers, companies, researchers, and citizens. Together, they can create the knowledge base and decision-support needed to steer Luxembourg towards a sustainable, low-carbon, and resilient energy future.

INNOVATION

The D2ET National Centre of Excellence in Research, co-funded by the Luxembourg National Research Fund (FNR), unites researchers, industry, regulators, and citizens in co-creating a nationwide decision-support and digital twin platform.
This platform will:

• Allow researchers to design, test, and validate new energy-transition models and approaches.
• Enable engaged stakeholders to simulate energy solutions before enforcing investing decisions.
• Empower citizens’ role in shaping the transition by providing concrete guidance for sustainable choices and actions
• Provide policymakers with evidence-based insights to design better, more robust regulations.

 
The first demonstrators will tackle three pressing national priorities, in the form of scenarios:

• Heat transition – analyzing the trade-offs for the deployment of heat pumps versus district heating.
• Energy security – ensuring reliable supply in a multi-carrier system.
• Energy communities – exploring how citizens and local actors can co-create resilient, decentralized energy solutions.

By combining cutting-edge science with real-world needs, D2ET turns Luxembourg into a living laboratory for future-proof energy systems.

IMPACT

D2ET will create a trusted national framework for data-driven decision-making, strengthening Luxembourg’s ability to plan and implement its energy transition. While final decisions remain with the relevant stakeholders, the project aims at delivering the data, models, and a platform to make them more transparent, inclusive, and future-oriented.
For industry, it means better investment planning and new opportunities to test services in virtual pilots. For citizens, it ensures their voices and choices shape the transition. For policymakers, it provides robust evidence for navigating complexity with confidence.
In the long run, D2ET aims to become a reference model—showing how collaboration between science, society, and decision-makers can address complex challenges not only in energy but also in other critical domains.