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UK domestic energy supplier

SSE Airtricity (Gas) UK

Founded in 2011 and headquartered in Belfast, SSE Airtricity (Gas) is one of the two main natural-gas suppliers in Northern Ireland with about 200,000 customers across the Phoenix Gas network (Greater Belfast, Larne, Newtownards). Backed by SSE plc, an LSE-listed energy group, with every tariff approved in advance by the Utility Regulator (UREGNI).

Founded 2011 About 200,000 households Belfast

Founded

2011

Years on the UK market

Customers

About 200,000 households

Households served

Employees

About 350 (NI & ROI combined SSE Airtricity workforce)

Workforce size

About

Who is SSE Airtricity (Gas)?

Registered as SSE Airtricity Gas Supply (NI) Ltd, SSE Airtricity (Gas) uses this legal name for Ofgem licence filings, contracts and any formal communications. The trading name customers see on bills is the shorter, more recognisable form.

The company is headquartered in Belfast, where it runs its senior management, customer operations and regulatory liaison with Ofgem.

SSE Airtricity (Gas) was established in 2011. A longer track record means more years operating under Ofgem rules and a wider history of customer feedback, billing systems and regulatory interactions.

SSE Airtricity (Gas) is part of the SSE plc group, which provides shared governance, financial backing and a broader pool of expertise in trading, hedging and regulatory work.

As a Northern Ireland energy supplier, SSE Airtricity (Gas) is regulated by the Utility Regulator (UR) for Northern Ireland, not Ofgem. Statutory consumer protection is handled by the Consumer Council for Northern Ireland (CCNI), which escalates unresolved complaints on behalf of NI households.

Network coverage

Where SSE Airtricity (Gas) supplies energy

SSE Airtricity (Gas) operates on 1 distinct distribution network. Each network has its own pricing, regulatory rules and competing suppliers, check which one covers your postcode before comparing tariffs.

Network

Phoenix Natural Gas (Greater Belfast)

Competitive supplier on the Phoenix Natural Gas distribution network

Connections
About 200,000 SSE Airtricity gas customers
Mains
3,800+ km of mains pipeline (Phoenix network total)
Investment
Phoenix Natural Gas has invested over £450m in the NI gas network since 1996

Main towns & areas

  • Belfast
  • Newtownabbey
  • Lisburn
  • Carrickfergus
  • Holywood
  • Bangor
  • Larne
  • Newtownards

Good to know: On the Phoenix Gas network you can choose SSE Airtricity Gas, firmus energy or (since 2024) Yuno Energy: three competing retail suppliers on the same distribution mains.

Current tariffs

SSE Airtricity (Gas) tariffs: as of 14 May 2026

Northern Ireland gas tariffs are not subject to the GB Energy Price Cap. Every SSE Airtricity Gas price change must be approved in advance by the Utility Regulator (UREGNI). Domestic gas tariffs in NI have no standing charge by regulatory convention. You pay only for the kWh you consume.

SSE Airtricity (Gas) domestic and business tariff unit rates as of 14 May 2026
Tariff Type Unit rate

Standard Home Gas: Credit (Direct Debit)

Default credit-meter tariff on the Phoenix Gas network. Standing charge is zero. Direct-debit customers receive an automatic annual discount; paperless billing also qualifies for a...

Term: 28-day rolling · no exit fee

Variable 9.264 pence per kWh

Standard Home Gas: Pay As You Go (keypad)

Prepayment (keypad) tariff for Phoenix Gas customers. Top up online, via the SSE Airtricity app, at any PayPoint or at Post Office counters. Unit rate is parity with the credit tar...

Term: 28-day rolling · no exit fee

Prepayment 9.264 pence per kWh

Dual Fuel Home Gas: Credit (with SSE Airtricity Electricity)

Same headline gas unit rate as the Standard Home tariff, with an additional dual-fuel discount (typically £50 to £100 per year) for households also on an SSE Airtricity Electricity...

Term: 28-day rolling · no exit fee

Variable 9.264 pence per kWh

Business Home Gas (small-business / IC1)

Small-business (IC1) gas tariff for Phoenix Gas connections under 73,200 kWh annual consumption. Climate Change Levy (CCL) is added on top of the unit rate. Mandatory direct debit....

Term: 28-day rolling, mandatory direct debit · no exit fee

Business 8.957 pence per kWh (ex VAT, ex CCL)

Regulator

Who regulates SSE Airtricity Gas?

Independent watchdog responsible for licences, price approvals and customer-protection rules.

Licence
Utility Regulator NI: Gas Supply Licence (Greater Belfast, Larne & Newtownards)
Complaints escalation (ADR)
Consumer Council for Northern Ireland (CCNI), with Utility Regulator (UREGNI) escalation

Northern Ireland gas customers escalate unresolved complaints to the Consumer Council for Northern Ireland. The Utility Regulator approves every NI gas price change in advance.

Timeline

SSE Airtricity (Gas) — key dates

A short timeline of the SSE Airtricity (Gas) brand — founding, milestones, regulatory events.

  1. 1997

    SSE Airtricity is founded in the Republic of Ireland as an all-island renewable electricity supplier (Airtricity).

  2. 2008

    SSE plc acquires Airtricity for approximately £1.08 billion and rebrands the group SSE Airtricity.

  3. 2010

    SSE Airtricity launches an electricity-supply business in Northern Ireland on the SEM (Single Electricity Market).

  4. 2011

    SSE Airtricity Gas Supply (NI) Ltd is incorporated and launches a natural-gas supply business on the Phoenix Gas network, becoming the first competitor to firmus energy in Greater Belfast.

  5. 2015

    SSE Airtricity Gas crosses 100,000 NI gas customers thanks to growth in the Phoenix Gas footprint and competitive dual-fuel propositions.

  6. 2018

    Smart-thermostat partnerships (including Google Nest) are introduced for NI gas customers, leveraging the wider SSE energy-services portfolio.

  7. 2020

    SSE’s GB retail electricity & gas business is sold to OVO Energy. SSE Airtricity Gas (NI) and the wider SSE Airtricity NI / ROI operations remain wholly owned by SSE plc.

  8. 2022

    Wholesale gas prices spike following the European energy crisis. UREGNI approves multiple SSE Airtricity Gas tariff increases through 2022 to 2023 with full cost-justification documentation.

  9. 2024

    SSE Airtricity Gas is one of the principal natural-gas suppliers in Northern Ireland alongside firmus energy. Yuno Energy enters the Greater Belfast gas market, creating three-way competition on the Phoenix Gas network.

  10. 2025

    Customer base reaches approximately 200,000 households across the Phoenix Gas footprint (Greater Belfast, Larne and Newtownards).

  11. 2026

    Domestic gas unit rate updated effective 1 April 2026 following the UREGNI quarterly review. The regulator approves every NI gas price change in advance under the NI Codes of Practice.

Recognition

SSE Airtricity (Gas) awards & accreditations

Independent badges that tell you whether a supplier walks the talk on price, service and sustainability.

UREGNI gas supply licence

Since 2011

Active Northern Ireland gas-supply licence issued by the Utility Regulator. No enforcement action on file in 14 years of trading.

NI Codes of Practice signatory

Ongoing

Bound by NI’s six statutory Codes (Marketing, Billing, Disconnection, Vulnerable Customers, Payment of Bills, Energy Efficiency), separate from Ofgem GB versions.

Bryson Charitable Group hardship partner

Ongoing

Long-standing partnership funding emergency-credit and hardship grants for NI households struggling with gas bills.

SSE plc renewable-energy investor

1997-present

Subsidiary of SSE plc, one of the largest renewable-energy investors in the UK and Ireland. The wider SSE Airtricity group sources electricity from SSE-owned wind farms on the island of Ireland.

SEAI / NI energy-efficiency partner

Ongoing

Participates in NI smart-thermostat and home-efficiency programmes, including Nest smart-thermostat partnerships for SSE Airtricity Gas customers.

Cross-border ROI & NI presence

Since 2011

Only NI gas supplier within a larger cross-border group also active in the Republic of Ireland gas market. Useful for households that move between jurisdictions.

Customer service

How to reach SSE Airtricity (Gas) in 30 seconds

The lines you actually need on speed-dial. Every other line (Welsh, Relay UK, business switching, bereavement) is on the full contact page.

General enquiries

0345 900 5253

Mon-Thu 8.30 a.m. to 8 p.m., Fri 8.30 a.m. to 4.30 p.m.

Special assistance

0345 603 4444

Priority Services register, vulnerable customers

Gas emergency (NI)

0800 002 001

24/7. Do NOT call the GB 0800 111 999 line

My Account portal

Log in online

24/7 self-service: bills, meter reads, top-up

Customer portal

Log in to SSE Airtricity My Account

Your SSE Airtricity (Gas) online account, view bills, submit meter readings, switch tariffs and manage your direct debit.

SSE Airtricity My Account

The web portal that holds your SSE Airtricity (Gas) account: bills, meter readings, tariff changes, paperless settings.

What you can do once logged in

  • View and download your most recent gas bills as PDFs
  • Submit a manual gas meter reading and check your usage history
  • Top up a Pay As You Go (keypad) gas meter without leaving the app
  • Manage your direct-debit amount and payment date
  • Switch tariffs or add the SSE Airtricity Electricity dual-fuel discount
  • Set up paperless billing and update contact preferences
  • Register for the Priority Services Register (vulnerable customers)
SSE Airtricity (Gas) supplies natural gas only on the Phoenix Gas footprint. For electricity in Northern Ireland, see the sister brand SSE Airtricity (Electricity). The dual-fuel discount applies when both fuels are taken from SSE Airtricity on the same address.
Save up to £300 per year
Independent comparison

Is SSE Airtricity Gas the cheapest option for your home?

UK households can save up to £300 per year by switching to a supplier whose tariffs fit their actual gas + electricity usage. Compare against suppliers regulated by Ofgem in under two minutes.

Common questions

SSE Airtricity (Gas) — frequently asked questions

SSE Airtricity (Gas) is regulated by Ofgem and operates under a standard domestic-supply licence. Whether it is the right supplier for your household depends on your unit rate, standing charge, customer-service rating and any add-on services (HomeCare, Warm Home Discount eligibility). Always quote your annual kWh consumption when comparing prices — the headline rate alone does not predict your bill.

Switching to SSE Airtricity (Gas) takes about five working days under the new Faster Switching service, and your supply is never interrupted. Sign up online with your address, postcode and a recent meter reading. SSE Airtricity (Gas) will arrange the transfer with your current supplier, including the final meter reading and the closing bill.

The UK grid is supplied by a mix of gas, nuclear, wind, solar, biomass and imports. SSE Airtricity (Gas) declares its fuel mix annually under Ofgem rules — see the fuel-mix section above for the current figures. Some tariffs are sold as 'green' or '100% renewable', which means the supplier matches your annual consumption with renewable electricity certificates (REGOs) rather than physically delivering renewable electrons to your home.

Most UK fixed-term tariffs include an exit fee (typically £25-£75 per fuel) if you switch before the contract ends. You can switch without an exit fee in the last 49 days of your contract. Variable tariffs (including the default tariff capped by the Energy Price Cap) have no exit fees.

You can reach SSE Airtricity (Gas) on 0345 900 5253, Mon-Thu 8.30 a.m. to 8 p.m.; Fri 8.30 a.m. to 4.30 p.m.. For a full breakdown of phone lines (emergency, prepayment, HomeCare, bereavement, Welsh, Relay UK), see the SSE Airtricity (Gas) contact page.

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