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首页> 外文期刊>Renewable & Sustainable Energy Reviews >Comparative life cycle GHG emissions from local electricity generation using heavy oil, natural gas, and MSW incineration in Macau
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Comparative life cycle GHG emissions from local electricity generation using heavy oil, natural gas, and MSW incineration in Macau

机译：澳门使用重油，天然气和城市固体废弃物焚烧产生的本地电力的生命周期温室气体排放量比较

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摘要

The electricity generation processes represent a large contribution to the potential greenhouse gases (GHG) emissions. Macau, a Special Administrative Region of China, is not of exception. Macau has multiple electricity generation modes, including heavy oil, natural gas, and municipal solid waste (MSW) incineration, and coal-dominated mode which is directly imported from China mainland. On the basis of first-hand data from two power plants and one MSW incineration facility, this study performed a Life Cycle Assessment (LCA) process for three kinds of local electricity generation (heavy oil, natural gas, and MSW incineration) to estimate the greenhouse gas (GHG) emissions under the operating practices used from 2010 to 2014. Results indicate that the mean GHG emissions of electricity production from heavy oil, natural gas, and MSW incineration were 0.71, 0.42, 0.95 kg CO2 eq per kW h, respectively. The mean value for aggregated GHG emissions of the local power grid (imported electricity excluded) was 0.69 kg CO2 per kW h, noticeably lower than many neighboring countries and regions, such as mainland China, Taiwan, and Japan. Our scenario analysis indicated that the development of natural gas-fired electricity would be more effective for a short-term GHG emission reduction target, while the utilization of more solar energy for electricity is the better choice in the long term, for Macau. In term of influence factors for GHG emissions, energy transformation efficiency (ETE) is the most sensitive one, for changing GHG emissions, and should be allocated to the highest priority for GHG reduction. All the obtained results could be useful for decisions makers, with providing a robust support for assessing the environmental performance and drawing up the appropriate improvement planning of power systems.
机译：发电过程对潜在的温室气体（GHG）排放有很大贡献。中国特别行政区澳门也不例外。澳门有多种发电方式，包括重油，天然气和城市固体废物（MSW）焚化，以及以煤炭为主的直接从中国大陆进口的方式。根据来自两个发电厂和一个城市生活垃圾焚化设施的第一手数据，本研究对三种当地发电（重油，天然气和城市生活垃圾焚化）进行了生命周期评估（LCA）过程，以估算根据2010年至2014年使用的操作规范的温室气体（GHG）排放。结果表明，重油，天然气和城市固体垃圾焚烧产生的电力的平均温室气体排放量分别为每千瓦时0.71、0.42、0.95千克二氧化碳当量。 。当地电网的温室气体总排放平均值（不包括进口电）为每千瓦时0.69千克二氧化碳，明显低于许多邻近的国家和地区，例如中国大陆，台湾和日本。我们的情景分析表明，就短期温室气体减排目标而言，开发天然气电力将更为有效，而从长远来看，对于澳门而言，更多地利用太阳能发电是更好的选择。就温室气体排放的影响因素而言，能量转换效率（ETE）是变化的温室气体最敏感的一种，应将其分配为减少温室气体的最高优先事项。所有获得的结果可能对决策者很有用，为评估环境绩效和制定适当的电力系统改进计划提供了有力的支持。

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