BigDataOcean platform use case: Assessment of wave resource – Part 2

As referred in our previous post , the “Wave energy resource assessment” service, available at the BigDataOcean marketplace (Applications and Dashboards), is composed by two main components:

  • Primary energy resource assessment
  • Energy conversion assessment

The “Primary energy resource assessment” related applications, which were presented in our previous post, were created with the objective of providing BigDataOcean users with a quick assessment of waves energy potential. However, in order to have a more detailed vision about the amount of electric power that can be extracted from waves, it is necessary to consider the different technologies that can be used to convert wave energy in electricity, i.e. the wave energy converters (WEC). Taking this need into consideration, the following “Energy conversion assessment” related applications were developed:

  • Assessment of WEC technologies in a single location;
  • WEC generation for a wide area;
  • WEC generation forecast for a single location; and
  • Matching between WEC output and selected electricity demand profile.

When selecting any of these four functionalities, the user starts by uploading the power matrixes of the WECs to be assessed (see Figure 1) or by selecting one of the previously uploaded matrixes, giving the user the possibility to easily test different technologies at different locations. The remaining of this post describes the four applications related with “Energy conversion assessment” offered by the BigDataOcean platform .

Upload of a specific WEC’s power matrix

Assessment of WEC technologies in a single location: gives the user the possibility to analyze multiple WEC technologies simultaneously and check their suitability for a particular location. The provided information comprises energy and power values associated to the WEC technologies generation over a specific period of time, as well as the respective capacity factors. The user is also informed about the number of times the device has to be taken out of operation due to excessive wave power, and the total duration of those stops. This application is therefore suitable for energy producers since they can assess their WECs potential and operation at a given location, or zone concessionaires as a tool to attract producers to the area they manage.

WEC generation for a wide area: this application is suitable for energy producers since it allows them to obtain the best location to install their WECs, starting from a wide area. Following a simple and fast approach, the main goal is to find the best location for a specific technology, so that the best candidate sites can be analyzed in detail later.

WEC generation forecast for a single location: designed for energy producers and zone concessionaires, this application offers the possibility to quickly obtain short-term forecasts on the effects of waves on WECs production and identify potentially dangerous operating conditions (scenarios where the available wave power exceeds the safety limits). Additionally, it provides short-term energy generation estimates, which will be relevant in a future scenario where wave energy producers are operating under market conditions.

Matching between WEC output and selected electricity demand profile: this application allows to verify the correlation between the load diagram of a specific consumer or power grid and the WEC generation. This will be particularly useful for energy producers and for grid operators if relative large wave farms are considered.

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