AN ANALYSIS ON THE PV AND BATTERY INSTALLATION CONNECTING THE COMMERCIAL AND RESIDENTIAL SECTORS

摘要

Japanese Government has determined the new target of GHGs reduction to achieve 26% reduction from the emission level in 2013 up to 2030 as Japanese INDC(Intended Nationally Determined Contributions).The discussions on the GHGs reduction measures to achieve this target are still wandering.However,in the long-run,Japan must intensify her GHGs reduction measures basically,because she already committed 50%(or 80%)reduction of GHGs in 2050 in the past several Summits etc.In addition,the rule of Paris Agreement has been finally adopted in COP24 which was held at Katowice in Poland on December 2018.The GHGs emissions of Japan in 2016 recorded to the 3.6% up from the 1990 level(the base level in Kyoto Protocol)[1],though the first commitment period of Kyoto Protocol finished in 2012.Because of the East Japan great earthquake and Fukushima nuclear accident in 2011,the thermal power generations was increased sharply instead of nuclear power generations.In the long-run,especially,the continuous increases in GHGs emission in the commercial and residential sectors were largely influenced to the whole GHGs increases in Japan.In recent years,the progress of ICT(information and communication technologies)such as cloud computing and bidirectional communication system is very marvellous.The battery system of electricity such as NAS battery and redox flow battery is also being made a great progress.Therefore,in this study,we would like to analyse the PV(Photovoltaic cell)and battery installation connecting the commercial and residential sectors under various conditions.We also would like to discuss the present problems and future subjects of this activity.