The transmission tariffs consist of capacity and commodity charges that apply for use of the transmission network systems. The tariff calculations are based on the allowable revenue, as agreed with the CER, and forecast demands.
Tariff Structure
For the purpose of the tariff the transmission network has been split into three separate systems, two entry and one exit. There are three sets of transmission tariffs (capacity tariff and commodity tariff) as follows:
Entry systems:
(1) Interconnector System
(2) Inch System
Exit system:
(3) Onshore System
A capacity and commodity tariff is payable in respect of each system which a Shipper wishes to use. Shippers are obliged to pay system charges in respect of their use of the entry and exit systems.
Allowable revenue is calculated to reward the asset owner’s investment in each of the transmission systems and also to recover allowable operating costs. Forecast capacities/demands set at the outset of the gas year are based on expected reserved capacity and expected commodity use of gas. There is a 90:10 capacity/commodity split to recover the allowable revenue of each system.
Current Tariff
- Transmission Tariff for the Gas Year 2009/2010
- Interim Bellanaboy Tariff 10/12/2009
- Short Term Capacity Example for the Gas year 2009/2010
- Transmission Tariff for the Gas Year 2008/2009
- Short Term Capacity Examples for the Gas Year 2008/2009
- BGN Transmission Tariff for the Gas Year 2007/2008
- Short Term Capacity Examples
Previous Tariff
Tariffs for previous gas years can be found in Publications section of this site.
