Heating up: The data behind the debate on green homes

James de La Salle

Get in touch:

Go back to insights

The green agenda is reshaping the built environment, as political will and societal needs drive disruption in this traditionally mature sector.

In this report, CIL explores the challenges faced on the journey to decarbonising Europe’s homes, and how current narratives overlook the complexity of the options available. We examine the challenge of heat pumps being a poor mass substitute for gas combi boilers and consider electric systems as an alternative.

At a glance:

• There is no single pan-European answer to decarbonisation but multiple solutions, which vary based on existing infrastructure.
• Available domestic technologies are not yet enough, with heat pumps only part of the answer and a weak cost/benefit case for the mass replacement of combi gas boilers.
• Electric systems can, in some cases, produce more total CO₂ and result in higher running costs; hydrogen boilers remain a long way off.
• The most effective available change comes through insulation and heat recovery in the near term.
• Ultimately, net zero will require a central grid overhaul towards renewables and nuclear. This will take significant capex and intergenerational political will to realise.