Vol.46 No.2 (Serial No.256) 2020

  • Prefatory note : Blessing and Calamity of the Sun / Jiro OHNO
  • Featured article Ⅰ : Technology Trends in MLPE (Module Level Power Electronics) and SLPE (String Level Power Electronics) of Photovoltaic Power Generation Systems
    • Purpose of this feature / Kazuhiko KATO
    • Advantages and current topics of Module Level Power Electronics(MLPE)/ Michihiko INABA
    • Realization of one supply and demand type model by the microinverter technology / Keiichi NAMBA
    • MLPE, its advantages and market status - with a focusing on SolarEdge System / Ken NAGASAWA
    • Optimizing PV system by using Ampt-string optimizer and its effect / Shigeki KONDO
    • Tigo’s MLPE Improves Efficiency and Safety of PV systems / Hiroshi AMANO
  • Featured article Ⅱ : Recent Advances of Thermal Storage Technologies
    • Purpose of this feature / Atsushi AKISAWA
    • Development Trend of Latent Heat Thermal Energy Storage Technology / Satoshi HIRANO
    • Utilization of un-used thermal energy by thermo-chemical energy storage / Junichi RYU
    • Utilization of unused heat for agriculture by latent heat storage material / Tetsuji Jozuka
    • Development of off-line heat transport technology using chemical heat storage / Yusuke HORII
    • Solar District Heating and Seasonal Heat Storage in Denmark / Hironao MATSUBARA
  • Research paper
    • Power forecast of regional large-scale photovoltaics by SV method model with snow loss / Takahiro SASAKI and Yuzuru UEDA
    • Electric Power Generation Characteristics of Three-Dimensional Fibonacci Number Photovoltaic Modules(FPMs)and Its Effective Cell Configuration / Yuki MOCHIZUKI and Toshiaki YACHI