Dynamical reserve assessments and power supply schemes of the renewable energy of Taiwan
Date Issued
2012
Date
2012
Author(s)
Hsiung, Cheng-Yang
Abstract
In Taiwan, 99.2 % of energy supply relies on imports. Lacking for the independence of energy, the power generation structure of high carbon emissions will crucially hinder the economic development in the future. For this reason, to develop clean, low carbon emissions and renewable energies becomes the most important and urgent task. Based on the analysis of public information, this research reevaluates reserves of various renewable energies in Taiwan and categorizes the assessments as four regions and offshore islands. In addition, hydropower, wave energy and tidal energy are listed under counties and cities. Solar power, biomass energy, and onshore wind energy are classified as townships, villages and districts. Meanwhile, with the data such as the potential of installed power, the amount of yearly electricity, monthly fluctuation, hourly analysis of peak day, the research builds a complete model of renewable energy supply and demand.
According to the detailed analysis of the models in all regions, the demand in the northern region exceeds the supply at the most of time. The south and east have relatively stable and sufficient supply of renewable energy. Although there is always energy surplus in the center and Penghu region, the amount of electricity has extreme differences between winter and summer. Furthermore, the research discusses the issue of energy supply-demand on the peak day of 2011 (18th, August) in all regions. For instance, in the north and south the supply was insufficient for the demand during the off-peak hours even though the solar power actually provides the majority of electricity in these areas during the summer. Also, the power deficiency happened in the center due to the unstable offshore wind energy. In this case, no matter how to distribute the electricity, by regions or an union system, the energy supply-demand might still be unbalance sometimes. For this reason, to develop an enormous system of energy storage becomes necessary for the future plans of electric generation.
At the end of the research, especially focusing on solar power, wave energy, offshore and onshore energy, there are ten scenarios based on hourly supply-demand in every month. Among them, the scenario number 9 offers the most practicable plan. For example, the best developing distributions of the four renewable energy types include 48.9% of solar power, 100% of onshore wind energy, 24% of offshore wind energy, and 21.7% of wave energy. Moreover, the minimum capacity of energy storage system should be 11.7 times pumped storage power plants.
Subjects
Taiwan
Renewable Energy
Reserves
Assessment
Power supply scheme
Type
thesis
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