The state of energy efficiency 2026 report
Developed by Accumin’s Department of Studies & Research, the State of energy efficiency 2026 in Spain report provides a statistical analysis of the energy performance across the residential housing market and identifies the scale of transformation required to improve efficiency.
Key highlights include:
- 94.2% of the housing stock is estimated to be energy inefficient, underlining the magnitude of the transition challenge.
- Energy renovations can reduce energy consumption by up to 75% in most single-family homes and by up to 50% in multi-family buildings.
- Renovation of the existing housing stock remains an essential element to achieve decarbonisation objectives, given the structural gap between the existent stock and new-build housing.
The report finds that the current pace of energy-efficient renovation and improvement activity is unlikely to be sufficient to significantly transform the residential sector by 2030 and meet the expected goals.
Understanding the current state of the residential market and where the main challenges and opportunities lie is critical to identify renovation potential and support informed decision-making throughout the transition towards an energy-efficient housing sector.
