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arXiv 2212.13655eess.SYcs.SY
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面向能源系统深度脱碳的电-气基础设施规划

Electric-Gas Infrastructure Planning for Deep Decarbonization of Energy Systems

Rahman Khorramfar, Dharik Mallapragada, Saurabh Amin

AI总结:

本文开发了一个考虑多种低碳技术的电力与天然气基础设施最低成本联合投资与运营规划模型,评估了美国New England地区在深度脱碳情景下的系统结果,发现电力部门在排放预算分配中占比显著较低。

摘要:

向深度脱碳能源系统转型需要协调规划服务于多种终端用途的基础设施投资与运营,同时考虑跨部门的技术和政策驱动的相互作用。作为当今能源系统的重要载体,电力和天然气(NG)在未来可能会以不同方式耦合,这源于日益增长的电气化、电力部门中可变可再生能源(VRE)的采用,以及跨部门排放交易等政策因素。本文开发了一个最低成本投资与运营模型,用于电力和NG基础设施的联合规划,该模型考虑了跨越这两种载体的多种可用及新兴技术选项,包括配备碳捕集与封存(CCS)的发电、低碳直接替代燃料(LCDF)以及长时储能(LDES)。该模型纳入了两个系统的主要运行约束,并允许每个系统在与各自典型调度时间尺度一致的不同时间分辨率下运行。我们应用该建模框架评估了美国New England地区在不同技术、脱碳目标和需求情景下的电力-NG系统结果。在全球排放约束下,即与1990年水平相比实现80-95%的减排,最低成本解决方案不成比例地依赖使用可用排放预算来满足非电力NG需求,导致电力部门仅使用了15-43%的排放预算。

英文摘要:

The transition to a deeply decarbonized energy system requires coordinated planning of infrastructure investments and operations serving multiple end-uses while considering technology and policy-enabled interactions across sectors. Electricity and natural gas (NG), which are vital vectors of today's energy system, are likely to be coupled in different ways in the future, resulting from increasing electrification, adoption of variable renewable energy (VRE) generation in the power sector and policy factors such as cross-sectoral emissions trading. This paper develops a least-cost investment and operations model for joint planning of electricity and NG infrastructures that considers a wide range of available and emerging technology options across the two vectors, including carbon capture and storage (CCS) equipped power generation, low-carbon drop-in fuels (LCDF) as well as long-duration energy storage (LDES). The model incorporates the main operational constraints of both systems and allows each system to operate under different temporal resolutions consistent with their typical scheduling timescales. We apply the modeling framework to evaluate power-NG system outcomes for the U.S. New England region under different technology, decarbonization goals, and demand scenarios. Under a global emissions constraint, ranging between 80-95\% emissions reduction compared to 1990 levels, the least-cost solution disproportionately relies on using the available emissions budget to serve non-power NG demand and results in the power sector using only 15-43\% of the emissions budget.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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