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In 2025, we introduced the Sector Coupling initiative with a clear intention: to contribute to a more integrated understanding of energy systems — across electricity, heat, mobility, and infrastructure.
Over the past year, one thing has become increasingly evident. Sector coupling is no longer a conceptual discussion. Projects already exist, technologies are available, and viable system designs are being implemented across different contexts.
And yet, despite this progress, the overall scale remains limited.
The Gap Is Not Technology — It Is Translation
Across many projects, the technical foundation is already in place. Photovoltaics, battery storage, thermal systems, and intelligent load management are mature and deployable.
What remains inconsistent is how these elements are brought together.
Sector coupling is often approached as a combination of individual components. In practice, however, it requires system-level thinking — where generation, storage, and consumption are considered as one integrated structure.
This gap between what is technically possible and what is implemented at scale continues to slow down broader adoption.
Across different industries and regions, there are already strong examples of integrated energy approaches. However, they are often:
- perceived as isolated cases,
- difficult to compare,
- or not structured in a way that allows for replication.
Bringing clarity to these projects — how they are designed, how they perform, and under which conditions they work — is a key step toward scaling them.
From Individual Cases to Replicable Approaches
For sector coupling to move beyond individual success stories, projects need to become transferable.
This does not mean standardizing outcomes, but rather creating clearer structures:
- how systems are configured,
- how different technologies interact,
- and how economic and regulatory frameworks are addressed.
By making these elements more transparent, existing projects can serve as reference points rather than exceptions.
This is where the initiative places its focus in 2026.
Strengthening the Path Toward Scale
Scaling integrated energy systems is not only a technical question. It is equally a matter of clarity, comparability, and confidence.
Decision-makers — whether in industry, municipalities, or infrastructure development — require a better understanding of how such systems work in practice.
The initiative therefore aims to:
- highlight concrete project setups,
- translate complex system designs into accessible insights,
- and support a more structured discussion around implementation.
The goal is to reduce the gap between existing solutions and their broader adoption.
A Collaborative Platform with Clear Direction
The Sector Coupling initiative remains a collaborative effort. By connecting insights across projects and making system approaches more transparent, the initiative contributes to a more consistent understanding of what sector coupling looks like in practice.
