Programmes

Certifies buildings that achieve verified zero operational and embodied carbon, including offsets for what can't be eliminated. Embodied-carbon data from products matters directly here.

Switzerland's building energy standard with broad market recognition. The ECO variant adds health and ecology criteria, including low-emission materials.

Japan's building energy-efficiency labelling system, rating buildings by calculated energy performance on a star scale.

Rates the measured operational performance of existing buildings — energy, water, waste, indoor environment — rather than design intent. Star ratings are based on real utility data.

A rigorous energy performance standard built on insulation, airtightness, and heat recovery. Unusually, PHI certifies building components — windows, doors, ventilation units — directly.

The North American passive building standard, with climate-zone-specific targets. Separate from the German PHI programme; the two certify against different criteria.