PHI (Passive House Institute)

The Passive House Institute (PHI) is an organization that sets standards for designing highly energy-efficient buildings. It promotes construction techniques that significantly reduce energy consumption for heating and cooling, resulting in lower utility bills and a smaller environmental footprint. Buildings certified by PHI meet strict criteria for airtightness, insulation, and ventilation, ensuring they stay comfortable year-round with minimal energy use. Essentially, PHI’s aim is to create buildings that are sustainable, cost-effective, and comfortable for occupants by using innovative, science-based design principles.