National Grid have published the TRIAD dates for Winter 2016/17. amber energy correctly called all three TRIADs which occurred on the following dates and times:   05/12/16 - Half hour ending 17:30 05/01/17 - Half hour ending 17:30 23/01/17 - Half hour ending 17:30    TRIADs are the three half-hour periods with the highest system demand between November and February – separated by 10 clear days. TRIADs are used by National Grid to determine the Transmission Use of System Charges for customers who are half hourly metered.

If you would like to read more on how TRIADs are calculated, or would like to understand how amber energy could help your business perform better in response to TRIAD warnings, please contact ciara@amberenergy.net