Scholarly record
ESTIMATING WEATHER WINDOWS AVAILABILITY IN THE BLACK SEA AREA
Abstract
Making marine renewable energy projects in the Black Sea is a subject discussed more and more lately because of the potential of this area. Various studies show that the western part of the Black Sea basin is characterized by high potential from point of view of the wave and wind energy. Because of the favorable wind conditions, offshore wind farm projects can be implemented in this area. In order to make all the maintenance activities in safe conditions, and also the shipping operability between the offshore wind farm and land, or even near a harbor, an accessible period of time is required. This is named as weather window availability and consists in a consecutive period of low height waves with long wave?s period. The present work aims to assess the weather downtime intervals related to the sea state conditions in the Black Sea area, by taking into account 10-years of reanalysis wave data (2009-2018). In order to quantify the level of access required for the operations and maintenance activities, several vessels were considered for investigation. From the selected ones, we can mention tugboat, catamaran or Ampelmann that are defined by operability limits located in the range of 1.5 m and 3 m. In order to provide a realistic estimation, only the wave conditions reported in a range of 0 km - 50 km offshore were considered for investigation. A completed picture of the sea state conditions associated to the major harbor infrastructure was possible throughout the spatial maps. According to these results, more consistent downtime windows are being reported during the winter season, when the maritime operations from the western part of the Black Sea are significantly restricted.
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