: Public <<Narrative>> Narrative
Created: 24/08/2018 09:06:06
Modified: 24/08/2018 09:06:06
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Notes: The TSO's operational planning is essential to ensure a secure and efficient operation of the bulk power system. The forecast of load and generation that is computed by the DSO's could be useful for the TSO's for planning purposes.<br/><br/>The DSO's have the ability to compute the forecasted consumption and aggregated generation by distribution grid node.<br/>Therefore, what is suggested in this SUC is the sharing of this information for the distribution nodes that make part of the TSO's observability area. The main purpose is enhancing the TSO's operational planning activities because of the more reliable forecast data provided from DSO's side.<br/><br/><a style="HEIGHT: 468px; WIDTH: 557px" href="C:\Users\E461134\Pictures\Observability area.png" width=903 height=787><font color="#0000ff"><u>Ctrl+click to see the image</u></font></a> <br/><br/>The figure above shows the disaggregated generation and load forecast at node level in the observability area.<br/><br/>About the generation forecast, this Use Case assumes that DSOs can forecast the DER infeed and aggregate the information to node level in the observability area, as well as performing a disaggregation by technology type (wind, PV, hydro, CHP, etc.). With this rationale (use of more accurate information concerning the production and consumption forecasts), the TSO's can manage with more effectiveness the congestion procedures and increase the security of supply.  These forecast information provided by the DSO is even more important if the TSO can represent the DSO networks (at least the HV network) inside the observability in its operational planning analysis.<br/><br/>In addition, the load forecast is provided from DSO to TSO with the same rationale of generation forecast regarding aggregation level. The pre-operation planning system of DSO should aggregate the forecasts by node in each observability area. In some cases the disaggregation by type of consumption (Residential, Industrial, Services) could be presented. Another disaggregation that is proposed is the differentiation between the DRES that are feed in-tariff and the ones that participates in the wholesale markets. <br/><br/>The disaggregation of the forecasts are important mainly to model the uncertainty of the previsions. As example, if a wind farm have a feed-in contract, can inject in the network the available power in each instant. If the same wind farm participate in the market, the production will be limited at the power sold in the market. This means that the SOs not need to consider the probability to have more production than the one sold on the market by the wind farm.<br/><br/>In this situation, a market forecast is also needed for the cases in that DRES participates in wholesale markets. For operational planning purposes, it is suggested a 72h ahead forecasting of market results, consumption and generation should be employed to capture all relevant planning processes of TSOs and DSOs..<br/><br/>Therefore, the forecasting data that is exchanged between the DSO and TSO should contain a time span of 72h ahead, with a daily refresh rate. The data should be shared with a granularity of 15 min. Therefore, the last time at which the forecast information is exchanged between TSO and DSO for operational planning purposes is 24-hours ahead of the application period.<br/>
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Notes: Improve the planning activities of the TSO's with the sharing of DSO's forecast information about aggregated generation by technology type and load by node in the observability area<br/>
Object Type Connection Direction Notes
«SUC» Disaggregated consumption and generation forecast for operational planning purposes SystemUseCase Dependency From