According to the Generac firm, daily traditional buildings consume at least 40% of the energy consumed in most countries. Furthermore, 90% of the carbon dioxide emissions of these buildings take place during the operational stage, that is, after construction. And that's primarily due to its HVAC (heating, ventilation and air conditioning), lighting, and electrical systems.

However, the American Council for an Energy Efficient Economy (ACEEE) notes that "commercial buildings could save up to $ 60 billion if investments in energy efficiency were increased by just 1 to 4 percent."

Complete article (Spanish)