Aachen – Replicator city in Germany

Aachen is a medium sized city in a cross-border region linking Germany, Belgium and the Netherlands, with a strong research base, industrial heritage and surrounding peri-urban and rural areas. The broader functional area includes commuter belts, industrial and logistics sites, and cross border connections that tie Aachen to nearby cities and regions.

Key challenges

The Aachen Replicator will use ALTHEA’s systemic approaches to strengthen its own cross border and peri-urban climate neutral strategies. It will:

Through the creation of a multi-actor committee, aiming to reach 300 members and establish a structured multi-stakeholder body for integrated peri-urban planning.


With a target of 20 new large-scale PV systems by the end of 2028 (5 per year), 1 new wind energy project by the end of 2028, and 1 small-area heat supply solution. A dedicated “energy enabler” position will be created to support municipalities and communities in identifying and optimising PV potential and self-consumption configurations.

Adding mobility indicators to existing digital infrastructure and improving evidence-based decision-making across the functional area.


Engaging 5 companies or institutions per year in schemes that offset 100 tonnes of CO₂ per year, accelerating climate compensation in peri-urban industrial areas.

Replicator Partners