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BI PV Project Summary
© Mizuho Information & Research Institute
Name projectItoman city government building
Year2002-05-07 (Start operation date)
PV applicationFa├žade - integrated in fixed sunscreens,
Flat roof - mounted & mechanical fixing
PV power total195.6 kWp
LocationItoman, Okinawa
Latitude/Longitude26°7'25"N 127°39'56.5"E
SummaryItoman-city government has a policy to regard environmental problems seriously and to actively apply new energy technologies such as PV, which are effective for energy and environmental problems. Based on the policy, a new government building was designed and constructed. In the building, various kinds of environmental friendly facilities were installed as well as PV systems. The construction started in 2000 and completed in 2002. Because the new government building is located in coastal landfill site and in high wind area, PV modules/arrays have to be prepared for salt damage. Further, because Okinawa is a path of typhoon, the design for sufficient wind pressure resistance is required. Okinawa locates southern part of Japan and the solar radiation is very strong. Therefore, the shading is very effective for decreasing cooling demand in summer. By installing PV modules/arrays as a part of louvers and shelters, incident light is cut down energy demand for cooling in summercan be saved by the shading effect.
Keywords(bipv) building integrated pv

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