Overview
- The proposal would oblige fuel producers and suppliers to blend increasing shares of climate‑friendlier gases or liquids into heating fuels, with a modest start that rises annually and only physical blending counting toward compliance.
- Backers seek to shift decarbonisation duties from homeowners under the current 65%‑renewables rule for new systems to market‑wide supplier obligations, arguing this would cut paperwork and keep existing boilers in service.
- Independent analysis by the Wuppertal Institute and IW warns a green‑gas quota would strain supplies, drive imports from about 2028 and could lift gas prices by up to 38% by 2030, with disproportionate impacts on lower‑income households.
- The alliance says politicians have been receptive, yet federal ministries and coalition groups have not agreed on Eckpunkte for a replacement law, and large cities face a 30 June 2026 deadline to complete heat plans.
- Competing pathways shape the debate as utilities push to limit heat‑pump subsidies in planned district‑heating areas, studies highlight lifetime cost advantages for heat pumps, and surveys show them as the most preferred new heating option.