AQ
Annual Quantity
Gas NetworksThe estimated annual gas consumption for a supply point, used to determine which transportation charge bands apply.
Annual Quantity (AQ) is a gas-specific concept that represents the estimated annual consumption for a gas supply point, measured in kilowatt-hours (kWh). The AQ is used to determine which gas transportation charge rates apply.
AQ band thresholds:
| Band | AQ Range | Typical Use |
|---|---|---|
| Small | < 73,200 kWh | Domestic, small commercial |
| Medium | 73,200 - 732,000 kWh | Medium commercial/industrial |
| Large | > 732,000 kWh | Large industrial |
How AQ affects charges:
- Sites below 73,200 kWh pay flat transportation rates
- Sites between 73,200 and 732,000 kWh have different charge structures including Customer Fixed charges
- Sites above 732,000 kWh use power function calculations based on SOQ
AQ calculation: The AQ is calculated by the shipper (gas supplier) based on historical consumption, weather correction, and other factors. It's updated periodically and stored in Xoserve's central systems.
Weather correction: Gas consumption varies significantly with temperature. The AQ is "weather corrected" to represent what consumption would be in a typical year, removing the effect of unusually warm or cold weather.
Example
A site with AQ of 500,000 kWh falls into the medium band and pays different rates than a small domestic site.Related terms
Put this into practice
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