National Grid announce the Triad periods for Nov17-Feb 18

Posted on 27 March 2018

Greenspan have now concluded their Triad Warning System for Nov 17 – Feb 18.

Of the 120 day Triad season, Greenspan issued 14 Triad warnings including successfully issuing a warning on each of the confirmed Triad periods on either a “Likely” or a “Very Likely” scale.

The triad dates confirmed by National Grid are;