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Triads Data

On this page you will find all of the Triad data documents as well as links to guidance materials. 

 

What are Triads?

Triads are the three half-hour settlement periods with highest system demand. We use them to determine charges for demand customers with half-hour metering and payments to licence-exempt distributed generation.

 

Want to know more?

Take a look at our guidance on triads.

What are Triads?

 

Note: Indicative Triads are based on data received to date can be found on Elexon's Electricity Data Summary.

Charging guidance

Our Charging guidance page will give you the guidance materials to help you understand how, when and what you'll be charged. 

More about charging guidance

Join our mailing list

ESO Charging communications include:

  • relevant updates about our charging, forecasting and billing activities,
  • invitations to attend our forums, webinars and workshops,
  • links to our published guidance materials.
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Triad data 2014-2020Triad data pre-2014

Triad data 2014-2020

Here is the Triad data for 2014-2020.

Published Sort ascending Name
26 Mar 20202019-20 Triad Data
26 Mar 20192018-19 Triad Data
22 Mar 20182017-18 Triad Data
27 Mar 20172016-17 Triad Data
24 Mar 20162015-16 Triad Data
27 Mar 20152014-15 Triad Data
19 Mar 2015Triad Dates
7

Triad data pre-2014

Here is the Triads data pre-2014

Name Sort descending
2007-08 Triad Data
2008-09 Triad Data
2009-10 Triad Data
2010-11 Triad Data
2011-12 Triad Data
2012-13 Triad Data
2013-14 Triad data
Triad calculation methodology
8
A beach at sunset with the sea coming in and electricity pylons dotted into the distance

Transmission Network Use of System (TNUoS)

Transmission Network Use of System (TNUoS) charges recover the cost of installing and maintaining the transmission system in England, Wales, Scotland and Offshore.

Find out more

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