Leipzig is betting on climate-neutral heat: Heat Plan 2026 as a milestone

Climate-Neutral Heating Supply: The Heat Plan 2026 as a Strategic Milestone

In May 2026, the city of Leipzig adopted a municipal Heat Plan intended to serve as a central instrument for achieving climate protection goals by 2038. The Heat Plan is part of the "Leipzig Strategy 2035" and aligns with the objectives of the Paris Climate Agreement. With 50 percent of CO₂ emissions, the heating sector significantly contributes to climate stress, which is why the plan focuses on comprehensive decarbonization.

Heat Planning: From District Heating to Heat Pumps

Future heating supply in Leipzig will be based on a combination of district heating, local heating, and decentralized solutions. In densely built-up central areas, the expansion of district heating is planned, while heat pumps are preferred in sparsely built and suburban areas.

Overall, 21 district heating expansion areas, 11 local heating island areas, and 9 testing areas have been defined. Local heating island networks based on renewable local sources such as waste heat or geothermal energy are considered to have high development potential.

Special attention is given to the use of industrial waste heat. The connection to the Leuna Chemical Park, which will become a reality from 2028, is expected to supply up to 83 megawatts of waste heat and make a decisive contribution to climate-neutral heating.

Social and Participatory Dimensions

The Heat Plan is not only a technical instrument but also a social project. The Mayor has been tasked with ensuring transparent communication formats and public participation. A municipal energy agency is to be established as an independent advisory body to support building owners and tenants in the transition to renewable heat.

A round table to accompany the heating transition, involving the expert community and civil society, has been proposed. In addition, a digital advisory tool is being developed in collaboration with the Consumer Advice Center.

Technological Pillars of Decarbonization

The Heat Plan outlines several technological pillars: Industrial waste heat, hydrogen-capable combined heat and power plants, deep geothermal energy, and biomethane. The performance of heating plants will be reduced to approximately 300 MW by 2035, while the input of renewable heat sources will increase.

Among the key projects is the heat pump at the Rosental wastewater treatment plant, which is expected to go into operation in 2030. Another project is the use of waste heat from the wastewater treatment plant, which has already undergone a feasibility study. The planned large heat pump with 80 MW heating capacity will feed into the district heating network and play an important role in the heating transition.

Financing and Implementation

The implementation of the Heat Plan strongly depends on financial support from the federal government and the Free State. The Mayor has been tasked with securing funding and strengthening advisory structures. The Heat Plan must be financed through double budgets and integrated into urban planning and municipal development instruments.

In addition, the Heat Plan must be updated every three years to adapt to changing conditions. The city of Leipzig expects a high investment need, which could be supported by crowdfunding, PPP models, or citizen energy projects.

Previous Developments

Leipzig has set the goal of becoming climate-neutral by 2040 and is implementing projects such as the Climate Budget and the modernization of the heating supply in March 2026 to move closer to this goal. The Climate Budget integrates climate protection targets directly into the budget planning.

In April 2026, Leipzig set new impulses for sustainable urban development through the expansion of the exhibition grounds, investments in infrastructure and education, 30 km/h zones, and climate protection measures. Key topics also included the expansion of transport infrastructure and the integration of renewable energies.

Outlook: Climate Neutrality by 2038

With the adoption of the Heat Plan, Leipzig has set a clear course for decarbonization. The city aims for a climate-neutral heating supply by 2038—ten years earlier than originally planned. The Heat Plan is a strategic framework that coordinates investments in renewable energies and infrastructure while aiming to avoid misinvestments in fossil systems.

Implementation will remain a challenge, especially regarding financing and social acceptance. However, with clear goals, broad participation, and a wide range of technological options, Leipzig has created the prerequisites to achieve climate neutrality in the heating sector by 2038.