Water-Filled Glass Ltd (WFG) have developed a new type of glass with an embedded water layer that saves energy, improves thermal comfort and transforms the standard glass envelope into a solar panel. Standard glass offers low insulation and lets radiation through the facade, which leads to overheating (summer) or rapid heat loss (winter), increasing energy demand and compromising thermal comfort. WFG works differently. In Summer, it uses its water layer to absorb heat, which protects indoors. The same heat can be reused by the mechanical system, leading to additional savings. During the colder months, the water layer is heated, which improves thermal comfort and reduces energy consumption either by using renewable heat source or by having higher efficiency than a conventional heating system in the building. Options for mechanical system can very from recycled stored heat, ground heat (pipes under the building), a heat pump or other conventional heating-cooling solution. Each case provides energy savings compared to standard. Founded in 2020, our mission is sustainability and architecture. Visit our website to see real world projects using WFG and learn more about the technology. www.waterfilledglass.com