Features of equipment, system and facilities

Solar cell panels are completely integrated into the building, covering almost the entire area of five surfaces — two roof surfaces and three sides. The color tone of the solar cell modules was chosen to be blended in with the surrounding cityscape. Considering the overall design and harmony of the building, dummy modules of exactly the same structure as the solar cell modules were also used.

Integration with the building

The panels are installed with the curtain wall method which is used in normal glass buildings. And the solar cell modules are integrated into the aluminum sash fittings.

Surface installation

Vertical installation on three sides of the building and also on the two roof surfaces made it possible for the solar cell modules to cover the large area needed to generate roughly 80 kW of power.

Energy saving

The solar cell modules installed on the roofs shade the building roof surface from direct sun, reducing the heat load transferred from the roof to inside the building during summer.

Design

The solar cell modules were installed as an integral part of the building structure, and give no feeling of incongruity. It can contribute to the promotion of PV power generation in office buildings as an example of a building with fully integrated solar cell modules.

Specifications

	Solar cell type	····· Polycrystalline silicon solar cells
	Module type	····· Building-integrated modules
	Module output	····· 100 W
	No. of modules	····· 765
	Capacity	····· 76.5 kW
	Inverter	····· 10 kW x 8