Overview
- From 1 October 2025, consumption-based metering is mandatory for central heat pumps in multi-unit residences, ending flat allocations or floor-area billing.
- The Bundesverband Wärmepumpe states that suitable measuring devices must be installed and in operation by 30 September 2025.
- Decentralized systems in individual apartments or single-family homes are not affected by the new requirement.
- Transparent metering can reduce ancillary costs for low-consumption households and encourage more careful use of heating and hot water.
- For planning, a 2022 modelled Wärmepumpen-Ampel map indicates about 75% of German homes are suitable for at least one heat-pump type, though it serves only as an orientation and does not replace expert advice.