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Electricity System Scenario Analysis to Determine Level of Wave Power that Can be Integrated: a Case Study

Date: October 08, 2013 at 18:57 GMT

Abstract Integrated long-term energy planning for a region is a key to enabling future energy supplies and identifying strategic generation, transmission & distribution infrastructure needs for the region. Considering the large available ocean wave energy resources along the Oregon coasts of the United States and the concurrent initiatives being undertaken to harness this emerging renewable energy for producing electricity, a high level electrical system scenario analysis could determine a practical level of ocean power that can be integrated within a time horizon. A high level system investigation, involving both the steady state and dynamic analysis, of the Oregon electricity system was carried out to examine the amount of wave power that could be added within the next 10 year into the electrical system without requiring any significant on-shore transmission resource addition. A set of six geographical target areas (consisting of twelve point of interconnections (POI) were considered in the assessment. Several scenarios, including two Western Electricity Coordinating Council (WECC) year 2019 power flow base cases representing heavy summer and heavy winter conditions reflecting the projected load, generation and network conditions for the region, two dynamic data files for the transient security analyses, as well as a set of conventional transmission planning techniques (such as, transfer scenarios, N-1 contingencies and violation criteria) were considered in the analyses. The paper will discuss the methodologies and present results from the assessment.

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