Help Files:

Offer Volume Summary

About

The Offer Volume Summary chart shows levels of offer volumes by fuel type or by offer price. This shows which types of units are being offered up in the market. The data can be grouped by “Price” or “Fuel” and be shown as a “Cumulative Area” or as a “Non-Cumulative Line”.

Clicking on the chart will open a box showing which units are being offered up the given time ranked by price. Once this box is opened it is possible to click through from here to see the unit's charts.

This example shows that mainly high volumes of CCGT are offered combined with occasional offers of pumped storage, battery and OCGT.

Included Data

The data on this chart is the Accepted Offer Volume data, which represents the volume of actions taken by National Grid to increase generation via the Balancing Mechanism within gate-closure. Additionally the upward BSAD volumes are shown which show the volume of activity taken outside the Balancing Mechanism (typically via interconnectors).

Data Service

The data for the Offer Volumes Summary chart can be extracted from the API. The parameters are as follows:


Code Required/Optional Description
chart Required offervoloverall
update Optional If false will always return data, else will return no data message if no change since submitted time
gmtupdatetime Required if update=true If update=true must put in the time of the last update. Can use the top field timestamp="2018-06-20T08:46:51" to get the last check time and then this feature can be used to only get data when a change has occurred.
format Required The type of format. The value could be xml or csv. (See 'formats' action)
series_to_plot Optional The type of aggregation to use, e.g. fuel or offerprice (see chart URL for more types). Defaults to fuel if missing.

Example :

enprompt.netareports.com/dataService?username=xxx&password=yyy&format=xml&action=data&chart=offervoloverall&update=false&series_to_plot=offerprice