Capital investment requirements for greenhouse gas emissions mitigation in power generation on near term to century time scales and global to regional spatial scales

摘要: Abstract Our paper explores the implication of climate mitigation policy and electricity generation technology performance for capital investment demands by electric power sector on near term to century time scales. We find that stabilizing GHG emissions will require additional in over above investments would be needed absence policy, range 15 29 trillion US$ (48–94%) depending stringency during period 2015 2095 under default assumptions. This increase reflects higher intensity systems control as well increased electrification global economy. Limits penetration nuclear carbon capture storage could costs substantially. Energy efficiency improvements can reduce requirement 18 24 (compared assumptions), scenario. also highlight implications different evolution scenarios regions. Under set, heaviest across were observed China, India, SE Asia Africa regions with latter three dominating second half 21st century.