The limits in Table 1 below are based on values previously published by National Grid in the Ten Year Statement and values published in the Gas Safety Management Regulations 1996 (GS(M)R). However, please note that upper and lower CV limits were removed from the Ten Year Statement in 2010.
| NTS Connection |
Wobbe Number |
CV |
Pressure |
| NTS Entry (including NTS Storage) |
>=47.20MJ/m3,
<=51.41MJ/m3 |
>= 36.9MJ/m3
<= 42.3MJ/m3 |
Typically in the range of 69 - 94barg dependant on point of connection |