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Publications

The Northern Ireland natural gas industry is highly regulated. Our publications section details everything you will need to know about how we operate our business. 

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GD17 Business Plan

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Natural Gas Licences

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Additional Developments

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Guaranteed Standards of Service

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Standards of Performance

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Annual Development Plans

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Energy Consumer Checklist

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Forecast Network Capacity

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Postalised Capacity Charges

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Distribution Network Code

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Conveyance Charges

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Consultation

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Supply Code of Practice

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Distribution Codes of Practice

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Distribution Connection Policy

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Terms & Conditions

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Tender Opportunities

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Modern Slavery Statement

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firmus energy publications

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Stakeholder Report

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GD23 Business Plan

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If you have an Urgent Query, please contact our customer services team on: 0330 024 9000

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What kind of business are you?

Small Business

Small businesses spend about £2,600 or less per bill. Medium businesses spend about £35,000 or less per bill.

Yes
or

Medium or Large Business


Large businesses spend about £250,000 or less per bill

Yes
Are you an electricity customer? Click here for more information
Why am I having to do this?

To give you the most accurate information for your town and county, please enter your postcode below.

How do you pay for your natural gas?

By Credit

Do you receive a monthly bill for your energy usage?

Yes
or

With a Pay as You Go card

Do you purchase a top-up card for your energy?

Yes
Are you a business? Click here for our business tariffs & offers

What kind of business are you?

Small or Medium Business

Small businesses spend about £2,600 or less per bill. Medium businesses spend about £35,000 or less per bill.

or

Large Business


Large businesses spend about £250,000 or less per bill

Make sure you have your bank details and SMP or meter serial number ready

Bank details

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&

SMP Number

This is the number usually at the top right of your bill or on your connection paperwork†

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If your account requires 2 signatures, or you are not the bank account holder, please call us first on 0330 024 9000
† If you don’t have this number, call our switch team on 0330 024 9000