The component of rates charged to customers that reflects the volume of gas actually transported by a utility or the cost of gas actually purchased by the utility.
The portion of a utility rate that varies with the quantity of natural gas, water or electricity used by a customer.
That portion of a natural gas rate or seller's price based upon the volume of gas actually transported or purchased.
A charge in respect of the use of the system determined by the quantity of gas flow at a certain point
The portion of natural Gas sales or transportation rate that is based upon the volume of natural Gas that is actually used or shipped.
A charge per unit volume or heat content (i.e., therm) of gas delivered to the buyer.