Large office buildings have a huge amount of glass surfaces, so the rooms do not need to be illuminated with artificial light. The disadvantage of this solution is that the glass is a poor thermal insulation, so in the summer it will allow much sunlight, requiring cooling of the premises, while in winter, they cause rapid cooling. However, you can reduce energy consumption by using smart windows.
Researchers have developed a special type of windows filled with hydrogel. This is a combination of water and polymers that can react according to changing environmental conditions. Previous types of hydrogel were not suitable for window installation because the substance swells under the influence of temperature. However, the new type contains small balls suspended in liquid to prevent it from expanding.
The hydrogel placed between the two glass panes reacts depending on the current temperature. Below its specified level, the window will remain fully transparent. When the sun rises and the building warms up, the glass fades, protecting the room against excessive heating. This way you can significantly reduce your building maintenance costs because you will not have to use air conditioning so often, so your energy bills will be significantly lower.