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SPACECOOL is an innovative material that blocks heat from sunlight and the atmosphere, emitting it into space through radiative cooling, thereby reducing temperatures below ambient levels with zero energy consumption.

Due to its unique optical design, SPACECOOL successfully controls the infrared radiation it emits to align with the wavelength range of the "atmospheric window," allowing for efficient radiative cooling during the day. By applying this material to facilities such as buildings and outdoor electrical equipment exposed to direct sunlight, it can suppress temperature rises without emitting CO2, thus contributing to the realization of carbon neutrality. Additionally, it is expected to aid in preventing heatstroke and improving labor productivity.

By applying SPACECOOL to buildings and social infrastructure, we can suppress temperature increases and reduce air conditioning energy consumption, contributing to the realization of a carbon-neutral society.

A leading radiative cooling material that can cool below the outside temperature with zero energy even under direct sunlight by radiating heat into space. This ultra-thin optical sheet, less than 0.1 mm thick, features a unique multilayer structure designed to block heat from sunlight and the atmosphere with a thermal insulation capability (reflectivity of over 95%) while also providing a radiative cooling function (emissivity of over 95%) that converts thermal energy into light energy in the atmospheric window wavelength range.

1.Demonstration Test of Distribution Boards
Distribution boards are equipped with electronic devices inside, and there are many cases where the increase in internal temperature due to direct sunlight leads to degradation or failure of the equipment. Traditionally, thermal countermeasures have been implemented using heat-insulating paints or shading panels, but no significant effects were observed. However, when SPACECOOL was applied to the surface of the distribution board, an internal temperature decrease of approximately 8°C was confirmed compared to conventional methods.

2.Case Study of Air Conditioning Outdoor Units
Air conditioning outdoor units are at risk of increased power load and operational shutdown due to temperature rise caused by direct sunlight. It has been reported by installation sites that the surface temperature of the outdoor units decreased by about 7°C when SPACECOOL was applied, resulting in an 18% reduction in energy consumption.

3.Case Study of Rooftop Installation on Buildings
A waterproof sheet utilizing SPACECOOL was applied to approximately 600 square meters of the rooftop of a facility owned by the Tokyo Metropolitan Bureau of Transportation. The effectiveness of reducing air conditioning energy consumption inside the building during the summer is being verified.

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