Timing value of marine renewable energy resources for potential grid applications
Timing value of marine renewable energy resources for potential grid applications
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DOI：
10.1016/j.apenergy.2021.117281
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发表时间：
2021-06-29
期刊：
影响因子：
11.2
通讯作者：
O'Neil, Rebecca
中科院分区：
文献类型：
--
作者：
Bhattacharya, Saptarshi;Pennock, Shona;O'Neil, Rebecca
介绍了海洋可再生能源(MRE)在潜在电网应用中的适用性。我们表明，海洋发电资源的许多独特价值流源于其固有的时间特性，特别是与风能和太阳能相比。具体地说，在这项工作中，我们评估了三种类型的MRE资源的计时价值：(A)潮汐、(B)波浪和(C)洋流。首先，通过一套新的度量，如资源可用性、持久性和多功能性，我们评估这些资源的时间价值特征。其次，通过一个更面向网格的数值研究，我们评论了这些时间特征在能量平衡和有效负载能力的背景下对一种海洋资源即波浪的潜在影响。最后，我们将进一步了解与风能和太阳能等更成熟的可再生资源一起运营基于海浪的发电可以利用的相对优势。我们的结果表明，与风能和太阳能相比，在全年的运营中，MRE资源在每小时级别上的可用性和持久性都更高。此外，波浪资源也被认为降低了电力系统内的平衡要求。我们的工作集中在特定于美国(US)的地点和英国(GB)地点的平行研究。结果发现，在美国和英国的站点是一致的，这意味着这项工作中讨论的电网好处可能适用于全球许多地点。
In this paper, the applicability of marine renewable energy (MRE) for potential grid applications is presented. We show that many of the unique value streams from marine-based electricity generation resources stem from their inherent temporal characteristics, especially when compared to wind and solar. Specifically, in this work, we evaluate the timing value for three types of MRE resources: (a) tidal, (b) wave, and (c) ocean currents. First, through a suite of novel metrics, such as resource availability, persistence, and versatility, we evaluate the temporal value characteristics of these resources. Second, through a more grid-oriented numerical study, we comment on the potential ramifications of those temporal characteristics in context of energy balancing and effective load carrying capability for one marine-based resource i.e., wave. Finally, we further our understanding of the relative advantages that may be leveraged by operating wave-based generation in tandem with more established renewable resources, such as wind and solar. Our results indicate that compared to wind and solar, MRE resources are consistently more available and persistent on an hourly level throughout an entire year of operation. In addition, wave resources are also seen to reduce the balancing requirements within the power system. Our work focuses on sites specific to the United States (US) and a parallel study for a location in Great Britain (GB). Results are found to be consistent for sites in both the US and GB, implying that the grid benefits discussed in this work could apply to a number of locations globally.