The impact of interconnectors on the GB electricity sector and European carbon emissions

The impact of interconnectors on the GB electricity sector and European carbon emissions
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互连器对英国电力部门和欧洲碳排放的影响

DOI:
10.1016/j.enpol.2021.112170
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发表时间:
2021
期刊:
影响因子:
9
通讯作者:
MacIver C
MacIver C
中科院分区:
经济学2区
文献类型:
--
作者:
MacIver C

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欧洲电力系统模型用于分析英国与其欧洲邻国之间互联水平不断提高的影响。对 2020 年、2025 年和 2030 年的情景进行了评估。围绕批准互连项目的评估标准以及现有投资和报酬模型的可行性,突出了几个政策问题。结果显示,2020 年英国征收特定碳税会导致能源成本相对较高,从而导致英国进口量增加。到 2020 年,将英国互连容量从 5 吉瓦增加到 8.4 吉瓦,将有助于增加进口,并将英国消费者的年度电力成本降低 6.39 亿欧元。对 2025 年和 2030 年的分析表明,额外的互连器、取消额外的英国碳税以及发电背景的变化导致英国互连器出口增加和互连器利用率减少。这减轻或扭转了新的GB互连对GB消费者价格的影响。它还导致未来互连器的收入潜力大幅减少。碳排放分析表明,不同国家碳定价的不一致,例如英国额外的价格支持,可能会导致英国排放量减少但欧洲总排放量增加的不良结果。
A model of the European electricity system is used to analyse the impact of increasing interconnection levels between Great Britain and its European neighbours. Scenarios are assessed for 2020, 2025 and 2030. Several policy questions are highlighted around the assessment criteria for approving interconnector projects and the viability of existing investment and remuneration models. Results show that a GB specific carbon tax in 2020 contributes to a relatively high cost of energy and therefore high imports into GB. Increasing GB interconnection capacity in 2020 from 5 GW to 8.4 GW facilitates additional imports and brings down the annual cost of electricity for GB consumers by €639m. Analysis for 2025 and 2030 shows that additional interconnectors, the removal of the additional GB carbon tax and changes to the generation background lead to GB experiencing increased interconnector exports and reduced interconnector utilisation. This lessens or reverses the impact of new GB interconnection on GB consumer prices. It also leads to a significant reduction in revenue potential for future interconnectors. Carbon emission analysis indicates that inconsistencies in carbon pricing across different countries, like the extra GB price support, can lead to perverse outcomes with reduced GB emissions but increased total European emissions.
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