Overview
- In mid‑June 2026 most large German cities met the Wärmeplanung deadline and published citywide plans with interactive maps that show where future heat networks or decentralized solutions like heat pumps are recommended.
- The municipal plans assign areas to central networks or building‑level solutions; Hamburg adopted a plan targeting climate neutrality by 2040 with roughly 56–57% of heat to come from networks and the rest from decentralized measures.
- The Kompetenzzentrum Kommunale Wärmewende (KWW) says roughly 80% of medium towns are actively planning, expects about 7,000 municipal plans once local collaborations are counted, and will aggregate the data in 2027 to guide national grid and investment choices.
- Independent reviews and reporting found large differences in plan quality, with some plans incomplete or omitting social safeguards, while cities, industry groups and environmentalists warn of real bottlenecks in electricity grid capacity, skilled workers and financing that could block timely deployment.
- The plans are advisory rather than legally binding for property owners, so achieving decarbonization targets will depend on scaling heat‑pump installations, expanding distribution and power infrastructure, and clarity on pending federal subsidy and heating‑law reforms.