Energy efficiency is often called the "first fuel" - an invisible force that reduces energy bills and boosts energy security. These benefits go beyond saving money. Energy efficiency sparks innovation, creates jobs, improves air quality and raises living standards worldwide. From heat pumps to triple glazed windows, energy-efficient technologies shape our homes, schools, workplaces and cities.
But how do we see what is often invisible? To answer this question, the IEA asked young people from around the world to capture the meaning of energy efficiency in their lives through photography. The three winners of the contest were invited to present their work at the 10th Annual Global Conference on Energy Efficiency, taking place this week in Brussels.
Their photographs captured local expressions of energy efficiency - including ancient window-to-wall ratios in Moroccan architecture, buildings designed with passive cooling, and communities embracing sustainable transport.
