Curtailment Events Site Specific

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Our Curtailment Events Site Specific dataset shows specific instances where power generation in our Yorkshire licence area was reduced during the RIIO-ED2 period. The reductions were triggered by Northern Powergrid include operational or protection measures, managing planned outages, and related adjustments before and after outages.

Each row in the dataset represents a single event where power generation was reduced. It includes the start and end times, the estimated total amount of energy reduced, the average reduction in access, the reason for the reduction and the related Grid Supply Point (GSP). The total energy reduction is estimated based on recent operational history.

If you are unsure of any of the column meanings, please hover over the column heading for a description.

Related Feature Pages

Regional Demand and Generation Tracker - Our Regional Demand and Generation Tracker provides near real time data for the generation mix of our network over the last 30 days.

Glossary of Terms

Our Glossary dataset provides definitions for various terms and acronyms found throughout our data. If the term you are searching for isn't in our list, please let us know via our Open Data team and we will get it added!

Data Governance

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Dataset Identifier

curtailment-events-site-specific@northernpowergrid

Source

Northernpowergrid

Downloads

1

Themes

Connecting Generation

Keywords

Generation, Curtailment

License

Northern Powergrid Open Data Licence v1.0

Language

English

Modified

May 13, 2025 8:57 AM

Publisher

Northern Powergrid

Update frequency

Annual

Last processing

May 13, 2025 8:57 AM (metadata)

May 12, 2025 9:21 AM (data)

Semantic Metadata

INSPIRE

DCAT

Dublin Core

Type

Dataset

Language

English

Coverage

Northeast, Yorkshire, 2023, 2024, 2025

Spatial Coverage

Northeast & Yorkshire

Temporal coverage start date

March 27, 2023 12:00 AM

Contributor

Northern Powergrid

Creator

Northern Powergrid

Format

application/vnd.ms-excel

DCAT-AP High Value Datasets (HVD)

Attachments

Click to expand Click to collapse

Curtailment events site specific Open Data Methodology March 2025.pdf

Dataset schema

Click to expand Click to collapse

Customer Unique Identifier

Unique customer ID for anonymised reporting.

No description available for this field.

Name (identifier)	customer_unique_identifier
Type	text
Sample

Event ID

Event ID.

No description available for this field.

Name (identifier)	event_id
Type	text
Sample

Site

Northern Powergrid operational site.

No description available for this field.

Name (identifier)	scheme_name
Type	text
Sample

Start time UTC

Event start time (UTC).

No description available for this field.

Name (identifier)	start_time_utc
Type	decimal
Sample

Start time Local

Event start time (local).

No description available for this field.

Name (identifier)	start_time_local
Type	datetime
Sample

End time UTC

Event end time (UTC).

No description available for this field.

Name (identifier)	end_time_utc
Type	decimal
Sample

End time Local

Event end time (local).

No description available for this field.

Name (identifier)	end_time_local
Type	datetime
Sample

Duration (hours)

Length of event (hours).

No description available for this field.

Name (identifier)	duration_hours
Type	decimal
Sample

Outage related curtailment-Total energy reduction (MWh)

Total energy reduction (MWh) during event.

No description available for this field.

Name (identifier)	outage_related_curtailment_total_energy_reduction_mwh
Type	decimal
Unit	MWh
Sample

Average access reduction (MW)

Average event reduction (MW).

No description available for this field.

Name (identifier)	average_access_reduction_mw
Type	decimal
Unit	MW
Sample

Reason For curtailment

Reason for curtailment event.

No description available for this field.

Name (identifier)	reason_for_curtailment
Type	text
Sample

JSON Schema

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

{

"title":"curtailment-events-site-specific@northernpowergrid",
"type":"object",
"oneOf":
[
- {
  - "$ref":"#/definitions/curtailment-events-site-specific@northernpowergrid"
  }
]
,
"definitions":
{
- "curtailment-events-site-specific@northernpowergrid":
  {
  - "properties":
    {
    "records":
    {
    "type":"array",
    "items":
    {
    "$ref":"#/definitions/curtailment-events-site-specific@northernpowergrid_records"
    }
    }
    }
  }
  ,
- "curtailment-events-site-specific@northernpowergrid_records":
  {
  - "properties":
    {
    "fields":
    {
    "type":"object",
    "properties":
    {
    "customer_unique_identifier":
    {
    "type":"string",
    "title":"Customer Unique Identifier",
    "description":"Unique customer ID for anonymised reporting."
    }
    ,
    "event_id":
    {
    "type":"string",
    "title":"Event ID",
    "description":"Event ID."
    }
    ,
    "scheme_name":
    {
    "type":"string",
    "title":"Site",
    "description":"Northern Powergrid operational site."
    }
    ,
    "start_time_utc":
    {
    "type":"number",
    "title":"Start time UTC",
    "description":"Event start time (UTC)."
    }
    ,
    "start_time_local":
    {
    "type":"string",
    "format":"date-time",
    "title":"Start time Local",
    "description":"Event start time (local)."
    }
    ,
    "end_time_utc":
    {
    "type":"number",
    "title":"End time UTC",
    "description":"Event end time (UTC)."
    }
    ,
    "end_time_local":
    {
    "type":"string",
    "format":"date-time",
    "title":"End time Local",
    "description":"Event end time (local)."
    }
    ,
    "duration_hours":
    {
    "type":"number",
    "title":"Duration (hours)",
    "description":"Length of event (hours)."
    }
    ,
    "outage_related_curtailment_total_energy_reduction_mwh":
    {
    "type":"number",
    "title":"Outage related curtailment-Total energy reduction (MWh)",
    "description":"Total energy reduction (MWh) during event.",
    "unit":"MWh"
    }
    ,
    "average_access_reduction_mw":
    {
    "type":"number",
    "title":"Average access reduction (MW)",
    "description":"Average event reduction (MW).",
    "unit":"MW"
    }
    ,
    "reason_for_curtailment":
    {
    "type":"string",
    "title":"Reason For curtailment",
    "description":"Reason for curtailment event."
    }
    }
    }
    }
  }
}

}

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