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(SE/P-03) Evaluation of Economical Introduction of Nuclear Fusion Based on a Long-Term World Energy and Environment Model

K. Tokimatsu¹⁾, Y. Asaoka²⁾, S. Konishi³⁾, Y. Ogawa⁴⁾, K. Okano²⁾, K. Yamaji^5)
 
1) RITE (Research Institute of Innovative Technology for the Earth), Tokyo, Japan
²⁾ CRIEPI (Central Research Institute of Electric Power Industry), Tokyo, Japan
³⁾ JAERI (Japan Atomic Energy Research Institute), Ibaraki, Japan
⁴⁾ High Temperature Plasma Center, The University of Tokyo, Tokyo, Japan
⁵⁾ School of Engineering, The University of Tokyo, Tokyo, Japan

Abstract.  This study investigates economical introduction of nuclear fusion energy in the context of world energy supply and CO₂ concentration. A long-term (during 21st century), 10 regional worldwide allocation energy/environment model Linealized Dynamic New Earth model is used for this study. Following nuclear fusion technological data are taken into consideration; cost of electricity (COE) and COE reduction rate, maximum regional plant capacity constraints, and regional introduction year. We simulated under atmospheric CO₂ concentration 550 parts per million (ppm) targeted at year 2100 scenario. Result indicates that according to the cost bases for varieties of technologies from energy mining to energy generation of the LDNE model, the present-design tokamak-type reactors can be economically selected around 2050 to 2060 under 550-ppmv CO₂ concentration constraint, and are not under all BAU (Business-As-Usual). It is revealed that breakeven prices of fusion reactors is increased by plus/minus some 10 to 30 mill/kWh under a 650-ppmv.

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