Investigating the Impact of Carbon Tax to Power Generation in Java-Bali System by Applying Optimization Technique
Java-Bali power system dominates the national installed capacity and will contribute to about 76% of the national CO2 emissions from the electricity sector in the future. Thus, minimizing CO2 emission from the Java-Bali system can help Indonesia to reduce the national CO2 emissions level. We apply optimization approach to investigate this problem by including carbon tax into the cost function. We analyzed data based on electricity generating system in 2008. In general the optimization showed that diesel and gas turbine is not needed in the power plant system. Further, the simulation showed that if Indonesia adopted carbon tax by US$56/ton CO2 - USD 86/tCO2; it will lead to three major changing. First, carbon tax will increase the cost of power plant or equivalently increase tax revenue to about 2.1% of GDP in a year. Second, combine cycle has important role to offset decreasing output in steam power plant. Finally, by implementing carbon tax, daily CO2 can decrease by 77,586 ton per day. By applying sensitivity analysis, we also found a structural break in marginal cost when carbon tax is higher than US$ 50/tCO2. There are some weaknesses from this study such as not use strong assumption for availability factor and generating costs. This study proposed that government needs to optimize utilization of combine cycle power plan to offset steam power and implement carbon tax above US$ 50/ ton CO2, to reduce CO2 emissions significantly.
Post-kyoto International Climate Policy
The Harvard Project on International Climate Agreements is a global, multi-disciplinary effort intended to help identify the key design elements of a scientifically sound, economically rational, and politically pragmatic post-2012 international policy architecture for addressing the threat of climate change. It has commissioned leading scholars to examine a uniquely wide range of core issues that must be addressed if the world is to reach an effective agreement on a successor regime to the Kyoto Protocol. The purpose of the project is not to become an advocate for any single policy but to present the best possible information and analysis on the full range of options concerning mitigation, adaptation, technology, and finance. The detailed findings of the Harvard Project are reported in this volume, which contains twenty-seven specially commissioned chapters. A companion volume summarizing the main findings of this research is published separately as Post-Kyoto International Climate Policy: Summary for Policymakers.
Environmental and electricity planning implications of carbon tax and technological constraints in a developing country
Abstract This paper examines the interfuel/technological substitution and electricity demand effects of carbon tax on electric utility planning and CO 2 emissions from the power sector. It also compares the magnitude of these effects in cases with and without restrictions on generation technologies. A major finding of the study is that low carbon tax may not be effective to reduce CO 2 emissions through interfuel and technological substitution in power generation regardless of the technological restrictions. Furthermore, with technological and resource availability constraints, the interfuel and technological substitution possibilities would be exhausted beyond a certain tax rate and the level of CO 2 mitigation due to carbon tax would mainly depend upon the demand-side response.