The GBA Trigger Level has been revised as a result of storage stocks increasing at one storage site.

The storage stocks at that facility are now at a level where there are more than 2 days stocks remaining at full withdrawal rates. The storage site has therefore been included within the GBA Trigger calculation.

The GBA Trigger Level now stands at 461.2mcm. The Non Storage Supply element of the GBA Trigger Level also remains under constant review.
 
Further information on Gas Balancing Alerts can be found here: http://www.nationalgrid.com/uk/Gas/Data/GBA/