An Optimization Model for Design and Operation Scheduling of Power-to-Gas Energy Storage

能量存储系统最近已成为重要的利益，以减轻各种现有的和悬而未决的问题的电力系统的问题。在不同的储能技术中，电转气（PtG）被认为是最具创新性的储能和输运技术。PtG技术的发展将促进电力和天然气部门之间的潜在相互作用，这可能会为大容量公用事业规模的储能带来新的选择。在PtG中，电能用于形成氢气或合成天然气（SNG），然后可以注入，运输，储存，并在以后的时间在天然气网络中用于加热，运输和/或发电。在本项目中，将开发PtG的优化设计和运行调度模型。该模型的目标是最大限度地提高PtG的净收入，通过其最佳调度的组合目的，生产可再生氢/SNG燃料和提供电网服务.这些服务将包括频率调节、旋转或运行储备（OR）和需求响应（DR）。此外，还将评估PtG在基本负荷发电盈余和/或间歇性可再生能源高渗透水平期间长期平衡发电和需求（斜降）的能力。为了确定PtG与其他储能系统相比的经济竞争力，将在PtG设备的寿命期间将氢气的销售和参与批发电力市场的收入与资本成本和运营费用进行比较。

Energy Storage Systems have recently become matters of significant interest to mitigate various existing andimminent issues of power systems. Among different storage technologies, Power-to Gas (PtG) is consideredthe most innovative technology to store and transport energy. The development of PtG technologies createspotential interactions between the electrical and gas sectors, which could lead to new options forlarge-capacities utility scale energy storage. In PtG, electrical energy is used to form hydrogen or syntheticnatural gas (SNG), which can then be injected, transported, stored, and used at a later time in the gas networkfor heating, transportation, and/or electrical generation.In this project, a model will be developed for the optimal design and operation scheduling of PtG. Theobjective of the model is to maximize the net revenue of PtG through its optimal dispatch for the combinedpurposes of producing renewable hydrogen/SNG fuel and providing power grid services. The services willinclude frequency regulation, spinning or Operating Reserve (OR), and Demand Response (DR). Also, thecontribution of PtG in balancing the generation and demand (ramping down) for long durations during periodsof surplus in baseload generation and/or high penetration levels of intermittent renewable energy resources willbe evaluated. To determine economic competitiveness of PtG compared to other energy storage systems,revenues from the sale of hydrogen and participation in wholesale electricity markets will be compared to thecapital cost and operating expenses over the lifetime of the PtG equipment.