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All Understanding Your Bill topics

Your bill explained

Find out how your electricity or gas bill is calculated, what the different standing charges mean and how to understand your meter readings.

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Invoice Number

Each bill has its own unique number, make sure to reference this (and your account number) if you have any queries about a particular bill.


Account Number

This is your Airtricity Account Number, make sure to reference it any time you contact us.


Meter Point Reference Number (MPRN)

A unique number assigned to your property's electricity connection, which identifies where it is on the network.


DG, MCC and Profile

Your DG number identifies your Distribution Use of System (DUoS) profile - this is a type of standing charge that Airtricity pays to companies who maintain and govern the electricity network.

MCC is your Meter Configuration Code, which corresponds to what type of meter you have. MCC01 is a Standard (24 Hour) meter, while MCC02 is a Day/Night meter.

Profile (also known as Usage Profile) determines what electricity tariff you pay.


Billing and Supply address

Billing Address is where your bills are sent, while Supply Address is the property where the electricity is being supplied to.


Balance forward

Amount due on your last bill


Payments received

Payments you've made since your last bill


Amount due before this bill

If there's any difference between what you paid and your last bill amount, this will be shown here and carried over to your next bill.



Units are different for each item:

  • Rate type (eg. Domestic Urban): Kilowatt hours (kWh)
  • Standing charges: Number of days in your billing period
  • PSO Levy: Number of months in your billing period

Maximum Import Charge (MIC)

The MIC is the maximum electrical load your connection can handle. If you need to increase your supply (eg. when extending your property) your MIC and your PSO Levy may also go up.



Your electricity rates vary depending on when you joined Airtricity, if you are signed up to eBilling, your payment method and meter type.

Your standing charges and PSO Levy are determined by whether you're an urban or rural customer, and also your meter type.


Rate type

Your electricity rates vary depending on when you joined Airtricity, your payment method, meter type and whether you are signed up to eBilling.

If you see two different rates on your bill, this usually means that your rates changed during the billing period eg. the 12-month Introductory rates ended and you went up to Standard rates, or your rates went down because you switched to eBilling and/or Direct Debit.


Standing charges

Standing charges are a combination of the fixed charges associated with providing electricity network services and a share of the supply costs in servicing your account. They may vary by supplier.


Public Service Obligation (PSO) Levy

The Public Service Obligation (PSO) Levy is a charge relating to the costs of purchasing peat generated electricity and the output of renewable, sustainable or alternative forms of energy purchased under various Government schemes. All electricity suppliers are obliged by government to apply these charges in the interests of security of supply and environmental protection.


Value Added Tax (VAT)

VAT is payable on electricity usage, standing charges and PSO Levy at 13.5%.


Total costs for this period

Costs for electricity usage, standing charges and PSO Levy added together minus VAT.


Total charges for this period

Costs for electricity usage, standing charges and PSO Levy added together including VAT.


Total amount outstanding

Your total costs for this billing period, plus any amount carried over from your last bill (or minus any credit).

If the amount outstanding is negative - your account is in credit and this will be rolled over to your next bill.


Total Due

The amount you need to pay. For Direct Debit customers, this amount will be debited from your account on the Payment Due Date.


Billing Period

The dates which this bill refers to


Payment Method

How you've chosen to pay your bills. You can also make extra 'top-up' payments at any time through any payment method.


Payment Due Date

When you need to pay your bill by. For Direct Debit customers, this is the date that your payment will be taken out of your account.


Remittance Advice

Detach this and submit it with any non-direct debit payments