Help Files:

Bid/Offer Volume Chart

About

The Bid/Offer Volumes chart shows the total Balancing Mechanism volumes achieved for a particular set of units in the market over time, for instance the balancing volumes at all the wind farms in the market for a single month.

Clicking on the columns allows for drilling down into the grouping type and to see more detail about a given unit.

Included Data

The data on this chart is the Accepted (or Declared) Bid/Offer Volume data, which represents the volume of actions taken (or available to be taken) by National Grid to reduce/increase generation via the Balancing Mechanism within gate-closure.

Data Service

The Bid Offer Volumes data can be extracted from the API to get the Bid and Offer Volumes by unit within a grouping over a period of time. The parameters used as follows:

Code Required/Optional Description
chart Required bovol
startdatetime Required The start date time in format YYYYMMDDHHMMSS.
enddatetime Required The end date time in format YYYYMMDDHHMMSS.
filter Optional The group of units that are of interest e.g. filter=fuel&fuel=coal. This defaults to filter=fuel&fuel=all and is as in the browser URL when picking options in the chart normally.
accdecl Optional Whether to go accepted (0) or declared (1) and is as in the browser URL when picking options in the chart normally. Defaults to accdecl=0 (Accepted)
format Required The type of format. The value could be xml or csv . (See 'formats' action)

Example :

https://enbm.netareports.com/dataService?username=xxx&password=xxx&format=xml&action=data&chart=bovol&startdatetime=20190520000000&enddatetime=20190527000000&filter=fuel&fuel=coal&accdecl=0