Heat pumps, grid congestion or district heating: facts versus assumptions

Individual heat pumps are often mentioned as a potential cause of grid congestion. However, recent studies show that the real electricity demand of these systems is often much lower than expected.

In the European energy transition, an important question arises: should we focus on collective solutions such as district heating networks, or on individual systems like air-to-water heat pumps?

A distorted perception of heat pumps

Electricity grid models often assume high peak loads per household. In practice, real-world measurements show significantly lower average demand.

Diversity factor

Not all heat pumps operate at full capacity at the same time. This diversity factor reduces the real load on the electricity grid.

Policy focus on district heating

Despite the growth of heat pump installations, many policy frameworks still prioritise district heating systems.

The other side of collective heating

District heating systems often involve fixed tariffs and limited flexibility, while homeowners with heat pumps may benefit from lower electricity prices or solar energy.

A grid-aware heat pump strategy

Modern heat pump systems increasingly integrate with smart grid technologies and flexible energy management.

Conclusion

The assumption that heat pumps cause major grid congestion is increasingly challenged by real-world data. A balanced strategy combining district heating and heat pumps offers the most realistic path forward.