Japan's energy conundrum: Post-Fukushima scenarios from a life cycle perspective

摘要: This study aimed at evaluating the co-benefit implications of alternative electricity generation scenarios in Japan, a post-Fukushima context. Four were designed assuming different shares energy sources 2030 timeframe. Applying life cycle assessment (LCA) methodology, assessed terms cumulative non-renewable (NRE) consumption, global warming potential (GWP), terrestrial acidification (TAP), and particulate matter formation (PMF). Additionally costs evaluated. Results demonstrate that current dependence on fossil fuel is unfeasible long run, as it results 14% higher NRE an increase 32% GHG emissions, 29% TAP 34% PMF, 9% cost than baseline scenario under pre-Fukushima conditions. On other hand, share up to 27% renewable energies technically possible would result reduction decrease contribute mitigation 24% PMF impacts, minor levelized costs. Increasing renewables phasing-out thermal power therefore resilience Japanese economy toward external oil markets, cope with environmental protection priorities, while promoting economic development.