Abstract Long distance power transmission is commonly considered as an option for reducing carbon footprint in future electricity systems. Accordingly, this article presents economic insights in a transcontinental power interconnection linking four Asian countries with Europe. Enhanced electricity trade through the interconnected countries is assessed via techno-economic modelling. For this purpose two electricity system scenarios are developed for the year 2040: (i) a Reference Scenario, where electricity system development follows the plans of the involved system operators and (ii) a so-called Trans-Asia Scenario, where additional power transmission capacities are added to strengthen the electricity trading route crossing the interconnected countries: Turkey, Georgia, Azerbaijan and Kazakhstan. Economic benefits arising from the proposed Trans-Asia Scenario are estimated as a change in social welfare in the electricity system. Modelling results show a 140 M€ increase in annual social welfare for the Trans-Asia Scenario. The subsequent cost-benefit analysis results in a net present value in the range of −221 M€ to 534 M€, at a discount rate of 4%. This implies that over a life-cycle period of 40 years, the evaluated economic benefit may compensate investments between 1598 M€ and 3251 M€ needed for the additional power transmission capacities.

中文翻译：

---

增强的泛亚电力贸易对社会福利的影响

摘要 长距离输电通常被认为是减少未来电力系统碳足迹的一种选择。因此，本文介绍了连接四个亚洲国家和欧洲的跨大陆电力互联的经济见解。通过相互关联的国家加强的电力贸易是通过技术经济模型进行评估的。为此，为 2040 年制定了两个电力系统情景：(i) 参考情景，电力系统开发遵循相关系统运营商的计划；(ii) 所谓的泛亚情景，其中额外的电力传输增加能力以加强穿越相互关联国家的电力贸易路线：土耳其、格鲁吉亚、阿塞拜疆和哈萨克斯坦。拟议的泛亚情景产生的经济效益估计为电力系统社会福利的变化。建模结果显示，泛亚情景的年度社会福利增加了 1.4 亿欧元。随后的成本效益分析得出的净现值为 -2.21 亿欧元至 5.34 亿欧元，贴现率为 4%。这意味着在 40 年的生命周期内，评估的经济效益可以补偿额外输电容量所需的 15.98 亿欧元至 32.51 亿欧元的投资。贴现率为 4%。这意味着在 40 年的生命周期内，评估的经济效益可以补偿额外输电容量所需的 15.98 亿欧元至 32.51 亿欧元的投资。贴现率为 4%。这意味着在 40 年的生命周期内，评估的经济效益可以补偿额外输电容量所需的 15.98 亿欧元至 32.51 亿欧元的投资。