CARE4HH is a collaborative research initiative that aims to advance the energy transition in Hamburg through a cross-disciplinary and data-driven approach. The project focuses on integrating energy system simulations into the city's digital planning tools to support evidence-based urban development and infrastructure decisions. Its main goal is to make energy transition data and models accessible on the Hamburg Urban Data Platform, enabling stakeholders from government, utilities, academia and the public to better understand and participate in the transformation of the city's energy systems.

The objectives include the aggregation of existing data and simulation models of technical energy systems, the development of new future scenarios in dialogue with stakeholders, and the use of interactive visualisations to inform policy, infrastructure planning and public engagement. The project addresses complex energy infrastructure issues such as renewable electricity generation, heating systems and gas networks by combining technological insights with spatial planning tools.

Funded under the Hamburg State Research Funding Programme, the project brings together key academic partners, led by Competence Centre for Renewable Energies and Energy Efficiency (CC4E) of the Hamburg University of Applied Sciences (HAW), in collaboration with the City Science Lab at HafenCity University Hamburg (HCU) and Institute of Engineering Thermodynamics (ITT) at the Hamburg University of Technology (TUHH). Associated partners include Hamburg Renewable Energy Cluster, Stromnetz Hamburg GmbH, Gasnetz Hamburg GmbH and Hamburg Energiewerke GmbH.