NDP Part 2: Network Scenario Headroom Report SPD

Information

The "Network Scenario Headroom Report" forecasts post-intervention headroom across all network groups out to 2050. This post-intervention headroom is calculated by combining existing network models, scenario forecasts, and known intervention plans.

The Network Scenario Headroom Report data files provide this information for each primary (and grid in SPM) substation/substation group for each year for ten years and every 5 years through to 2050 thereafter.

For additional information on column definitions, please click on the Dataset schema link below.

Note: A fully formatted copy of this appendix can be downloaded from the Export Tab under Alternative Exports.

Download dataset metadata (JSON)

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Data Triage:

As part of our commitment to enhancing the transparency, and accessibility of the data we share, we publish the results of our Data Triage process.

Our Data Triage documentation includes our Risk Assessments; detailing any controls we have implemented to prevent exposure of sensitive information. Click here to access the Data Triage documentation for the Network Development Plan dataset.

To access our full suite of Data Triage documentation, visit the SP Energy Networks Data & Information page.

Attachments

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Dataset schema

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Substation/Group

The name or identifier of the substation or substation group.

No description available for this field.

Name (identifier)	substation_group
Type	text
Sample

Voltage (kV)

The voltages at the Substation(s) in Kilovolts (kV)

No description available for this field.

Name (identifier)	voltage_kv
Type	decimal
Sample

Grid/Grid Group

The name or identifier of the GSP this Substation(s) are within.

No description available for this field.

Name (identifier)	grid_grid_group
Type	text
Sample

Scenario

This specifies the scenario.

Low - Low Scenario
BV - Baseline Scenario
high - High Scenario

No description available for this field.

Name (identifier)	scenario
Type	text
Sample

Year

This specifies the year - DFES starting position is the last complete calendar year, and forecasts per year, out to 2050.

2022 - As peak demand is key to our modelling, the year corresponds to the winter of that year (i.e. 'December 2022') when the peak is likely to happen, although more widely it corresponds and takes data from the financial year ending the following March in line with regulatory reporting - e.g. 2022 = 2022/23.

The first year is historic data. Following years are predominantly forecast data.

No description available for this field.

Name (identifier)	year
Type	text
Sample

Headroom (MW)

This gives the data value in Megawatts.

No description available for this field.

Name (identifier)	headroom_mw
Type	decimal
Sample

Headroom Type

This specifies the headroom type that is forecast.

Generation (Synchronous) - This is the available generation headroom for a synchronous machine. This is not necessarily equal to the contractually available headroom shown in connection heatmaps.

Generation (Fully Rated Converter) - This is the available generation headroom for a Fully Rated Converter. This is not necessarily equal to the contractually available headroom shown in connection heatmaps.

Demand - This is the demand headroom available before reinforcement and/or flexibility is required. A positive number indicated spare capacity and a negative number indicates a forecast constraint.

No description available for this field.

Name (identifier)	headroom_type
Type	text
Sample

GSP

No description available for this field.

Name (identifier)	gsp
Type	text
Sample

Primary_Substation

No description available for this field.

Name (identifier)	primary_substation
Type	text
Sample

JSON Schema

The following JSON object is a standardized description of your dataset's schema. More about JSON schema.

{

"title":"spd-nshr-data-workbook",
"type":"object",
"oneOf":
[
- {
  - "$ref":"#/definitions/spd-nshr-data-workbook"
  }
]
,
"definitions":
{
- "spd-nshr-data-workbook":
  {
  - "properties":
    {
    "records":
    {
    "type":"array",
    "items":
    {
    "$ref":"#/definitions/spd-nshr-data-workbook_records"
    }
    }
    }
  }
  ,
- "spd-nshr-data-workbook_records":
  {
  - "properties":
    {
    "fields":
    {
    "type":"object",
    "properties":
    {
    "substation_group":
    {
    "type":"string",
    "title":"Substation/Group",
    "description":"The name or identifier of the substation or substation group."
    }
    ,
    "voltage_kv":
    {
    "type":"number",
    "title":"Voltage (kV)",
    "description":"The voltages at the Substation(s) in Kilovolts (kV)"
    }
    ,
    "grid_grid_group":
    {
    "type":"string",
    "title":"Grid/Grid Group",
    "description":"The name or identifier of the GSP this Substation(s) are within."
    }
    ,
    "scenario":
    {
    "type":"string",
    "title":"Scenario",
    "description":"This specifies the scenario. Low - Low Scenario BV - Baseline Scenario high - High Scenario"
    }
    ,
    "year":
    {
    "type":"string",
    "title":"Year",
    "description":"This specifies the year - DFES starting position is the last complete calendar year, and forecasts per year, out to 2050. 2022 - As peak demand is key to our modelling, the year corresponds to the winter of that year (i.e. 'December 2022') when the peak is likely to happen, although more widely it corresponds and takes data from the financial year ending the following March in line with regulatory reporting - e.g. 2022 = 2022/23. The first year is historic data. Following years are predominantly forecast data. "
    }
    ,
    "headroom_mw":
    {
    "type":"number",
    "title":"Headroom (MW)",
    "description":"This gives the data value in Megawatts."
    }
    ,
    "headroom_type":
    {
    "type":"string",
    "title":"Headroom Type",
    "description":"This specifies the headroom type that is forecast. Generation (Synchronous) - This is the available generation headroom for a synchronous machine. This is not necessarily equal to the contractually available headroom shown in connection heatmaps. Generation (Fully Rated Converter) - This is the available generation headroom for a Fully Rated Converter. This is not necessarily equal to the contractually available headroom shown in connection heatmaps. Demand - This is the demand headroom available before reinforcement and/or flexibility is required. A positive number indicated spare capacity and a negative number indicates a forecast constraint."
    }
    ,
    "gsp":
    {
    "type":"string",
    "title":"GSP",
    "description":""
    }
    ,
    "primary_substation":
    {
    "type":"string",
    "title":"Primary_Substation",
    "description":""
    }
    }
    }
    }
  }
}

}

NDP Part 2: Network Scenario Headroom Report SPD

Data Triage:

Attachments

Dataset schema

JSON Schema

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