抄録
The amount of CO2 emission from the electricity sector has been increasing during the past three decades in Japan．Analysis
of Input-Output table (I-O table) is one of the most useful methods to estimate energy consumption and environmental
burdens on industrial activities． We have developed 1970-2000 time series input-output tables based on the sector criteria of
1995 I-O table，and then reconstructed the sectional energy and environmental database by using 1973-2000 energy balance
tables． This paper aims to estimate direct and indirect energy consumption and CO2 emission of the Japanese electricity
sector by the TSIO tables in order to understand environmental burdens effected by the past structural change of industry．
Energy analysis ratio and CO2 emissions per unit of yen are estimated on the different power sectors such as hydro，nuclear
and fossil fuels power generation during the period of 1973-2000．
