Electrochromic glass by SageGlass

See below how SageGlass by Saint-Gobain can contribute to HQE criterion: Reducing primary energy consumption.

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Key contribution

When SageGlass glazing is properly integrated into the building design, it can generate substantial savings in primary energy consumption. Thanks to its dynamic properties!


To prove that primary energy consumption due to building services has been reduced and that the feasibility on the use of renewable energy has been studied.

Detailed requirement

Reducing primary energy consumption due to heating, cooling, lighting, Service Water Heating, ventilation and ancillary systems linked to user comfort, consumption of artificial lighting not related to the visual comfort of users, consumption by electromechanical equipment, using of renewable energy, reducing the primary energy consumption of the refrigeration systems used in refrigerated warehouses.

Our contribution

4.2.1. Reduce primary energy consumption due to heating, cooling, lighting, service water heating, ventilation, and ancillary systems linked to user comfort 

Windows are traditionally responsible for 30% of loss in the building's energy, but you won't experience anything like that with SageGlass. By adapting to outdoor climatic conditions, Sageglass makes it possible to limit the consumption of heating in winter, air conditioning in summer, and artificial lighting throughout the year. 

SageGlass dynamic glass