1. Fuji Keizai group, The Pulse-Taking of the Near Future and the Present Conditions about the Amount of Use Electricity of the Electricity Usage Apparatus (Tokyo: Fuji Keizai, 2009), pp. 1–53. (in Japanese).
2. The Agency of Natural Resource and Energy, Japan’s Energy White Paper (Tokyo: Energy forum, 2012), p. 88. (in Japanese).
3. M. Croucher, Energy Policy 45, 304 (2012).
4. K. Endo and A. Kawamura, in Proceedings of the 2013 1st International Future Energy Electronics Conference (IFEEC) (2013), pp. 265–270.
5. H. Ohashi, in Proceedings of the 2010 14th International Power Electronics and Motion Control Conference (EPE/PEMC) (2010), pp. K20–K25.