Weather Zone Forecasts Table
• Date/Time: The date and time for the row of forecast and weather data that is displayed.
• Temp (F): The forecast temperature for the weather zones forecast date/time.
• Wind Speed (mph): The forecast wind speed for the weather zone forecast date/time.
• Cloud Cover: The forecast cloud cover level for the weather zones forecast date/time.
• Wind (kW/kVAr): The total forecasted wind generation in kW and kVAr for the weather zones forecast date/time.
• PV (kW/kVAr): The total forecasted Photovoltaic (PV) generation in kW and kVAr for the weather zones forecast date/time
• Fuel (kW/kVAr): The total forecasted fuel generation in kW and kVAr for the weather zones forecast date/time.
• Battery (kW/kVAr): The total forecasted battery generation in kW and kVAr for the weather zones forecast date/time.
• DR (kw/KVAr): The total forecasted demand response contributions in kW and kVAr for the weather zones forecast date/time.
• Total Generation (kW/kVAr): The total forecasted generation of DER technology types summed together in kW and kVAr for the weather zones forecast date/time.
Understanding the Utility DER Forecast Tab
The Utility DER Forecasts tab allows you to see Utility Scale DER forecast information for a selected resource. With this information, you can see the forecasted output (kW, kVAr) of the resource that has been provided via an external DERMS system via an adapter to NMS.
The forecast information displayed is for the real-time output and configured forecast range. It is meant to show you how DER output can change based on the forecast data provided for the resource (for example, battery used for peak shaving).
You can navigate to a specific Utility DER Forecast in two ways:
• From the DERMS Summary tab:
• Select the resource you are interested in from the Utility DER Summary table. Right-click and select View Forecast… from the context menu. The DERMS Dashboard window will display the Utility DER Forecasts tab with the selected resource name populated in the Resource Name field, and with the resource's forecast data displayed in the Utility DER Forecast table.
• From the Utility DER Forecast tab:
• Select the resource you are interested in from the Resource Name drop-down list. The Utility DER Forecasts table will be populated with the selected resource's forecast data.
The Utility DER Forecasts tab will also show information related to Grid DERMS if the device is configured as a DERMS participant. The Grid DERMS proposed schedule will be displayed on a table within this page and represent the results of the analysis stating for each configured forecast interval the bid status of the unit and its recommended output.
Utility DER Forecasts Tab Layout
The top section contains the following information:
• Resource Name: The name of the utility scale DER (for example, Large Battery or Diesel Generator).
• Substation: The substation the DER is a part of.
• Feeder: The feeder the DER is connected to.
• Power Source: The technology type associated to the unit (for example, Battery, Fuel, Hydro, and so on).
• Islandable: Indicates if the DER is capable of islanding an area of de-energized network.
• Market Participant: Specifies if this DER is bidding into the day ahead market and is consider in the Network Capacity Allocation Analysis.
• Aggregator: Displays either Y or N if the DER belongs to an aggregator or not.
• Capacity (kVA): The generation capacity of the unit in kVA.
Utility DER Forecasts Table
The Utility DER Forecasts table contains the following information:
• Date/Time: The date and time for the row of forecast data that is displayed.
• Output (kW/kVAr): The forecasted total output of the resource in kW and kVAr
• Solution Time: The time the solution was last solved for this particular DER.
Grid DERMS Proposed Schedule
The Grid DERMS Proposed Schedule table specifies the results of the DERMS analysis and displays the proposed output and recommended output for each forecast interval.. This information will be displayed for any DER that is configured within a Grid DERMS area that is configured for a DERMS objective such as (NCA, Economic Dispatch, and so on).
• Date/Time: The date and time the NCA analysis row corresponds to.
• Proposed Output (kW/kVAr): The total output in kW and kVAr the generator wanted to bid into the market.
• Allowed Output (kW/kVAr): The total output in kW and kVAr the generator can produce as determined by the NCA analysis. If the generator exceeds the allowed output flow constraints will be created on the network.
• Price ($/MWH): The price of generation for this particular interval as provided with from the generator with the bid.
• Bid Status: The bid status for this NCA analysis interval; the values may be Accepted, Denied, or Curtailed. For example, if the NCA analysis determined the generator cannot produce any power during this interval without creating flow constraints, the Bid Status would be set to Denied. If the generator output needed to be reduced from the proposed output, but not fully reduced, the bid status would be Curtailed. If the proposed generator output does not create any flow constraints and can be fully utilized, the bid status will show as Accepted. Note that for other objectives, such as economic dispatch or peak shaving where bids are not applicable, this field will display N/A.
Viewing Violations for a DERMS Proposed Schedule
When viewing the NCA forecast for a particular DER, the flow and/or voltage violations that caused schedule adjustment can be displayed. You can view these issues for each forecast hour. Right click the forecast of interest, and then select View Violation.... When the Grid DERMS Violations dialog box opens, you can then select the option to view the Proposed or Allowed violations. The Proposed violations correspond to issues that would occur with the proposed generator output, this is essentially the output the generator intended to supply. The Allowed violations correspond to issues that would occur with the NMS recommended generator plan, under ideal circumstances the number of allowed violations should be zero. The following columns will be displayed in the Grid DERMS Violations dialog box.
• Device: The device name where the violation has occurred.
• DER Name: The DER name that has sensitivity to the violation.
• Feeder Name: The name of the feeder where the violation has occurred.
• Violation: The type of violation that has occurred (for example, Switch Overload, Conductor Overload).
• Phase: The phase on which the violation has occurred
• Value: The power flow value on the device (for example, amps for switches/conductors, kV for voltage issues).
• %: The percent overload of the violation
• Limit: The limit on the overloaded device
• Pre-Existing Viol: Specifies if this was a pre-existing violation that existed before any generator schedules were taken into account.