Features of equipment, system and facilities

This system was introduced as Fukushima Prefecture’s highest-priority model project for utilizing clean natural energy. Unbound by existing design principles, the Prefecture sought to install an innovative system that was clean, safe, attractive and in harmony with the building design, and which could serve as a model for the future introduction of PV power generation systems.

New installation format

•	Viewed as a part of the building, the PV system incorporates a steel frame design that is integrated into the building, and applied an innovative installation method combining horizontal and inclining panels.
•	In the outer part of the frame, which projects 1.5 m out from the building, translucent modules formed in a sandwich structure of tempered glass that also serves as eaves for the second floor terrace are installed horizontally. This is an attractive system with soft light passing through the modules just like the sun’s rays filtering through the foliage on a tree.
•	The use of steel frames that are integrated into the building has made it possible to install modules over an area of 2,448 m² greater than the building’s open roof area of 1,612.2 m².
•	The modules were installed horizontally and snow guard fittings attached on the outer edges as a model for measures to prevent snow sliding down from buildings in areas of high snowfall.

Model for PV promotion

This attractive PV power generation system that sits in harmony with the design of the building is expected to be a strong promotional model for PV power generation throughout the region. In the entrance hall to the facility, a power generation display panel and a ramp have been installed so that visitors can see how the system operates and how effective it is.