Customers that consume in excess of 73,000 kWh of gas per annum are classified as Large Residential Users and are charged differently than customers with usage below 73,000 kWh per annum. In addition to paying for standing charges and for gas consumed, Large Residential Users pay a Supply Point Capacity charge which is calculated by Bord Gáis Networks on an individual basis.
What is Supply Point Capacity?
The Supply Point Capacity is the maximum amount of gas that a household is likely to use in one day, and is generally calculated based on historical gas usage.
The purpose of the Supply Point Capacity charge is to ensure that enough gas is available for all customers by reserving space on gas pipelines.
What are Large Residential Users charged?
Bord Gáis currently charges a €2.01 per kWh Supply Point Capacity charge. This means that if your Supply Point Capacity is calculated at 400 kWh, you may pay an SPC charge of €804 over the course of a year.