What’s an account number?

An account number is your unique customer identifier. You should quote this in all correspondence with Shell Energy.

Annual quantity (aq)

Annual Quantity, or AQ, is the yearly gas consumption at a site calculated on historical usage and held by Xoserve or Independent Gas Transporters.

Electricity is known as 'Estimated Annual Consumption' (EAC) and is measured in kWh.

Gas is referred to as 'Estimated Annual Quantity' (EAQ) and is measured in Therms.

Automated meter reader (amr)

If you would like to receive regular invoices which are always based on actual meter readings, not estimated readings, you can install an Automated Meter Reader (AMR) device that sends reads to us automatically. Contact us to request an AMR.


Balancing services use of system (bsuos)

Balancing Services Use of System, or BSUoS, charge recovers the cost of day to day operation of the transmission system. Generators and suppliers are liable for these charges, which are calculated daily as a flat tariff across all users.