1. 2005 National Land and Transportation Ministry in Japan.
2. A. Sato, 6th Symposium of Smart Energy Research Center of TTI, (2015).
3. NEDO, 2012, METPV–11, (In Japanese), http://app7.infoc.nedo.go.jp/metpv/metpv.html
4. A. Itagaki, et al., “Preparation of meteorological data set throughout Japan for suitable design of PV systems”, Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on, Volume: 2