Multi-period Carbon Emission Pinch Analysis (CEPA) for reducing emissions in the Trinidad and Tobago power generation sector

IF 2.8 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Carbon Management Pub Date : 2022-01-02 DOI:10.1080/17583004.2022.2038273

Dillon Ramsook, Donnie Boodlal, R. Maharaj

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引用次数: 6

Abstract

Abstract Trinidad and Tobago (T&T) aims to reduce the Business-As-Usual (BAU) emissions in its power generation sector by 28.7 MtCO2-e by 2030 according to its National Determined Contribution (NDC). Based on current published data, there appears to be a gap in quantifying the activity level and carbon intensity of planned actions to meet this target. Through two scenarios, this study explored the impacts of power plant dispatch optimization and new zero-carbon energy additions for T&T through adaptations of a widely used method called Carbon Emission Pinch Analysis (CEPA). A national grid emission factor (GEF) of 0.56 MtCO2-e/TWh was determined using an internationally accepted methodology from gathered power plant data. The GEF was discretized to project a BAU case to benchmark both scenarios. Scenario 1 (S1) determined T&T would achieve 8% of the NDC target if the existing supply is optimized in the years 2022 to 2030 through the compound pinch points. To achieve the target, Scenario 2 (S2) determined that at least 47% of T&T’s grid energy needs to come from zero-emission carbon sources by 2022. This would equate to required capacities of 2,169 MW of solar photovoltaic or 1,549 MW of onshore wind using the most recent published capacity factors, and a decrease in the BAU GEF by 43%.

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用于减少特立尼达和多巴哥发电部门排放的多时期碳排放夹点分析(CEPA)

摘要特立尼达和多巴哥（T&T）的目标是根据其国家自主贡献（NDC），到2030年，将其发电部门的照常营业（BAU）排放量减少2870万二氧化碳当量。根据目前公布的数据，在量化实现这一目标的计划行动的活动水平和碳强度方面似乎存在差距。通过两种场景，本研究通过调整一种广泛使用的方法，即碳排放抑制分析（CEPA），探讨了发电厂调度优化和新的零碳能源添加对T&T的影响。根据收集的发电厂数据，使用国际公认的方法确定了0.56 MtCO2-e/TWh的国家电网排放系数（GEF）。全球环境基金被自由裁量，以规划一个BAU案例，对这两种情景进行基准测试。情景1（S1）确定，如果在2022年至2030年通过复合夹点优化现有供应，T&T将实现NDC目标的8%。为了实现这一目标，情景2（S2）确定，到2022年，T&T至少47%的电网能源需要来自零排放碳源。这相当于所需的2169个容量太阳能光伏发电MW或1549 使用最新公布的容量因子的陆上风电MW，BAU GEF减少了43%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Carbon Management ENVIRONMENTAL SCIENCES-

CiteScore

5.80

自引率

3.20%

发文量

期刊介绍： Carbon Management is a scholarly peer-reviewed forum for insights from the diverse array of disciplines that enhance our understanding of carbon dioxide and other GHG interactions – from biology, ecology, chemistry and engineering to law, policy, economics and sociology. The core aim of Carbon Management is it to examine the options and mechanisms for mitigating the causes and impacts of climate change, which includes mechanisms for reducing emissions and enhancing the removal of GHGs from the atmosphere, as well as metrics used to measure performance of options and mechanisms resulting from international treaties, domestic policies, local regulations, environmental markets, technologies, industrial efforts and consumer choices. One key aim of the journal is to catalyse intellectual debate in an inclusive and scientific manner on the practical work of policy implementation related to the long-term effort of managing our global GHG emissions and impacts. Decisions made in the near future will have profound impacts on the global climate and biosphere. Carbon Management delivers research findings in an accessible format to inform decisions in the fields of research, education, management and environmental policy.