Asahi Glass Co Ltd (AGC) announced April 27, 2016, that its “Attoch (for solar power generation)” solar cell-embedded glass window has been employed for “Kirin Yokohama Beer Village” in Yokohama City, Kanagawa Prefecture, Japan.

According to AGC, the Attoch is a glass plate featuring both energy saving and energy creation capabilities, and this is the first time that it has been employed for actual use.

solar cell-embedded glass windows displayed

Kirin Yokohama Beer Village is a facility for visitors to taste Kirin Co Ltd’s beverages and is located on the premises of the company’s Yokohama Plant. It was renovated for the 90th anniversary of the plant, and the solar cell-embedded glass windows were installed as part of Kanagawa Prefecture’s “Project for Expanding Use of Thin-film Solar Cells.”

The tasting room has a large opening and is facing southwest. It received strong sunlight, making visitors feel hot. Therefore, Kirin introduced the power-generating solar cell-embedded glass windows. The company said that the concept of “ensuring a field of view, blocking heat and generating electricity with sunlight” matched its needs.

In addition to the energy saving and energy creation capabilities, the Attoch (for solar power generation) can be set up from the inside of a building, eliminating the need for scaffolding. As a result, it enables to shorten construction period and reduce costs, compared with the renovation of normal windows.

Also, the construction time per window is as short as 30 to 60 minutes, and it can be installed in any season. It mitigates summer heat and winter cold and prevents dew condensation, realizing a comfortable living environment.

AGC realized the improvement of power generation efficiency and a field of view by cutting monocrystalline solar cells into a bamboo blind-like shape. The Attoch is formed by sandwiching solar cells between laminated glass plates.