Buildings are major energy consumers in the EU: for this reason improving their energy efficiency is crucial for cutting emissions and improving occupants' comfort.

This article highlights the power of "smart" technologies in buildings to achieve consistent energy savings in buildings, as shown by projects such as SMART2B an PHOENIX, funded by the EU.

SMART2B aims to monitor existing building equipment, such as appliances, heating systems, and solar panels, through connected sensors and switches. The project aims to demonstrate energy-efficiency gains of up to 40% in various buildings across Europe.

PHOENIX also aims to improve energy efficiency in buildings. The technology aggregates data from existing equipment into one central platform, providing occupants with advice on improving efficiency through a web-based or smartphone app. The system can offer incentives for energy-saving behaviours, such as lower tariffs during off-peak hours or allowing users to sell excess energy back to the grid.

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