The calculator of charges for gas transmission services provided based on short-term firm capacity products serves for indicative estimation of costs of gas transmission service under short-term contracts for a typical customer of the National Transmission System.
The charges are calculated on the basis of Tariff No. 18 for gaseous fuels transmission. For short-term interruptible capacity products, the ex-ante discount referred to in section 10.4.2 of Tariff No. 18 applies.
