Abstract Many long-term investment planning models for liberalized electricity markets either optimize for the entire electricity system or focus on confined jurisdictions, abstracting from adjacent markets. In this paper, we provide models for analyzing the impact of the interdependencies between a core electricity market and its neighboring markets on key long-run decisions. This we do both for zonal and nodal pricing schemes. The identification of welfare optimal investments in transmission lines and renewable capacity within a core electricity market requires a spatially restricted objective function, which also accounts for benefits from cross-border electricity trading. This leads to mixed-integer nonlinear multilevel optimization problems with bilinear nonconvexities for which we adapt a Benders-like decomposition approach from the literature. In a case study, we use a stylized six-node network to disentangle different effects of optimal regional (as compared to supra-regional) investment planning. Regional planning alters investment in transmission and renewable capacity in the core region, which affects private investment in generation capacity also in adjacent regions and increases welfare in the core region at the cost of system welfare. Depending on the congestion-pricing scheme, the regulator of the core region follows different strategies to increase welfare causing distributional effects among stakeholders.

中文翻译：

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邻近市场对可再生地点、输电扩张和发电投资的影响

摘要 自由化电力市场的许多长期投资规划模型要么针对整个电力系统进行优化，要么专注于有限的司法管辖区，从相邻市场中抽象出来。在本文中，我们提供了用于分析核心电力市场与其相邻市场之间的相互依存关系对关键长期决策的影响的模型。我们对区域和节点定价方案都这样做。在核心电力市场中确定输电线路和可再生能源的福利最优投资需要空间受限的目标函数，这也说明了跨境电力交易的好处。这导致具有双线性非凸性的混合整数非线性多级优化问题，我们采用了文献中的类 Benders 分解方法。在一个案例研究中，我们使用一个程式化的六节点网络来解开最佳区域（与超区域相比）投资规划的不同影响。区域规划改变了核心地区对输电和可再生能源的投资，这会影响邻近地区对发电能力的私人投资，并以系统福利为代价增加核心地区的福利。根据拥堵定价方案，核心区域的监管者遵循不同的策略来增加福利，从而导致利益相关者之间的分配效应。我们使用程式化的六节点网络来解开最佳区域（与超区域）投资规划的不同影响。区域规划改变了核心地区对输电和可再生能源的投资，这会影响邻近地区对发电能力的私人投资，并以系统福利为代价增加核心地区的福利。根据拥堵定价方案，核心区域的监管者遵循不同的策略来增加福利，从而导致利益相关者之间的分配效应。我们使用程式化的六节点网络来解开最佳区域（与超区域）投资规划的不同影响。区域规划改变了核心地区对输电和可再生能源的投资，这会影响邻近地区对发电能力的私人投资，并以系统福利为代价增加核心地区的福利。根据拥堵定价方案，核心区域的监管者遵循不同的策略来增加福利，从而导致利益相关者之间的分配效应。这也会影响邻近地区的私人发电能力投资，并以系统福利为代价增加核心地区的福利。根据拥堵定价方案，核心区域的监管者遵循不同的策略来增加福利，从而导致利益相关者之间的分配效应。这也会影响邻近地区的私人发电能力投资，并以系统福利为代价增加核心地区的福利。根据拥堵定价方案，核心区域的监管者遵循不同的策略来增加福利，从而导致利益相关者之间的分配效应。