UK domestic energy supplier

Guernsey Gas UK

Q: How do I switch to Guernsey Gas?

Switching to Guernsey 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. Guernsey Gas will arrange the transfer with your current supplier, including the final meter reading and the closing bill.

Q: Are there exit fees on Guernsey Gas tariffs?

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.

Q: How do I contact Guernsey Gas customer service?

You can reach Guernsey Gas on 01481 724811, Mon-Fri, 8.30 a.m. to 5 p.m. (closed weekends and Guernsey public holidays). For a full breakdown of phone lines (emergency, prepayment, HomeCare, bereavement, Welsh, Relay UK), see the Guernsey Gas contact page.

Founded in 1830 and headquartered in St Peter Port, Guernsey, Guernsey Gas supplies gas and electricity to UK households. Compare tariffs, customer service, complaints and ownership below.

See Guernsey Gas tariffs Contact Guernsey Gas

Founded 1830 About 10,000-12,000 connections across the bailiwick St Peter Port, Guernsey

Founded

1830

Years on the UK market

Customers

About 10,000-12,000 connections across the bailiwick

Households served

About

Who is Guernsey Gas?

Registered as Guernsey Gas Limited (trading as Guernsey Energy), Guernsey 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 St Peter Port, Guernsey, where it runs its senior management, customer operations and regulatory liaison with Ofgem.

Guernsey Gas was established in 1830. A longer track record means more years operating under Ofgem rules and a wider history of customer feedback, billing systems and regulatory interactions.

Guernsey Gas is part of the Islands Energy Group (ultimately owned by Ancala Partners) group, which provides shared governance, financial backing and a broader pool of expertise in trading, hedging and regulatory work.

The company is regulated by Ofgem, the UK's energy regulator, and its complaint handling falls under the Energy Ombudsman alternative dispute resolution scheme.

Who owns Guernsey Gas?

Ownership: Privately owned
Listed: No
Parent: Islands Energy Group (ultimately owned by Ancala Partners)
Holders: Wholly owned by Islands Energy Group Ltd, in turn held by funds managed by Ancala Partners LLP (a UK infrastructure investor). IEG also owns Isle of Man Energy (Manx Gas) and Island Energy (Jersey).

Network coverage

Where Guernsey Gas supplies energy

Guernsey Gas operates on 2 distinct distribution networks. Each network has its own pricing, regulatory rules and competing suppliers, check which one covers your postcode before comparing tariffs.

Network

Mains LPG network

Reticulated LPG distribution, sole licensed distributor

Connections: About 10,000 mains connections
Mains: ~80 km of pipeline across the bailiwick
Investment: Bulk LPG imported by sea, stored at Bulwer Avenue terminal, St Sampson

Main towns & areas

St Peter Port
St Sampson
Vale
St Martin
St Andrew's
Castel
St Saviour
Forest
Torteval
St Pierre du Bois

Good to know: The bailiwick mains is filled with bulk LPG (propane/butane mix), not natural gas, the calorific value is roughly 2.7× UK natural gas, so appliances must be set up for LPG. Connection density is highest in St Peter Port and St Sampson.

Network

Mini-bulk tanks & bottled LPG

Off-mains delivery service for the whole island

Connections: Bulk tank refills + 47 kg, 13 kg and 3.9 kg cylinders
Investment: Tanker fleet operates from The Energy Centre, Admiral Park

Main towns & areas

Off-mains rural parishes (Forest, Torteval, St Saviour)
47 kg propane bottles (heating)
13 kg / 3.9 kg butane bottles (cooking, caravans)
Mini-bulk tanks (auto-top-up service)

Good to know: Bottle and tank customers buy LPG directly, there is no daily standing charge on bottled gas, only the cost of each refill or exchanged cylinder. Pricing tracks European wholesale propane indices and is reset on each refill.

Current tariffs

Guernsey Gas tariffs: as of 7 April 2026

Guernsey is outside the UK Energy Price Cap. Guernsey Gas tariffs are set by the company and published openly on guernseyenergy.gg, there is no advance approval by Ofgem or any other GB regulator. Wholesale LPG is imported by sea from continental Europe, so prices track the European propane market more closely than the GB natural-gas market. The most recent change took effect on 7 April 2026 (the headline 4Gen Gas unit rate is now 32.05 p/kWh).

Guernsey Gas domestic and business tariff unit rates as of 7 April 2026
Tariff	Network	Type	Unit rate	Standing	Effective
4Gen Gas Flagship single-tariff covering hot water, central heating, cooking and gas fires. Available on every supply type Guernsey Gas offers (mains, mini-bulk and bottled). Quarterly mete... Term: Rolling, no fixed term · no exit fee	Mains, mini-bulk & bottled	Variable	32.05 pence per kWh	44.79 p/day	7 Apr 2026
Standard 24 Light-use mains tariff aimed at cooking-only and gas-fire households, no central heating or hot water on this plan. Single unit rate, no daily standing charge. Term: Rolling, no fixed term · no exit fee	Mains only	Variable	29.48 pence per kWh	None	7 Apr 2026
Super Economy 24 High-usage mains plan: lower unit rate (20.79 p/kWh) in exchange for a daily standing charge of 44.79 p. Designed for households running gas central heating and hot water as the pr... Term: Rolling, no fixed term · no exit fee	Mains only	Variable	20.79 pence per kWh	44.79 p/day	7 Apr 2026
Super Economy 24 LPG Off-mains equivalent of Super Economy 24, for households on metered LPG cylinder supply. Two-tier unit rate: 20.79 p/kWh up to 54.79 units per day, 19.34 p/kWh above, rewarding hig... Term: Rolling, no fixed term · no exit fee	Metered LPG cylinder supply	Variable	20.79 pence per kWh	44.79 p/day	7 Apr 2026

Open the full Guernsey Gas tariffs page

Regulator

Who regulates Guernsey Gas?

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

Complaints escalation (ADR): Guernsey Competition and Regulatory Authority (GCRA)

Timeline

Guernsey Gas — key dates

A short timeline of the Guernsey Gas brand — founding, milestones, regulatory events.

1830
The Guernsey Gas Light Company is founded by Royal Charter to provide gas for street lighting in St Peter Port. One of the oldest gas utilities in the British Isles still trading today.
1922
Electricity replaces gas for Guernsey street lighting; the company pivots to domestic heating, cooking and hot water as its core market.
1960s
The supply switches from manufactured coal-gas to bulk-imported Liquefied Petroleum Gas (LPG). The bailiwick mains is reconfigured for the higher calorific value of propane/butane.
2005
Opens The Energy Centre showroom in Admiral Park, St Peter Port, the main retail, customer-service and appliance hub.
2018
International Energy Group (IEG, parent of Guernsey Gas) is acquired by Ancala Partners, a UK infrastructure investor. IEG is later rebranded as Islands Energy Group.
2019
IEG announces a 3.8% gas-bill rise across the Channel Islands, tracking a rebound in European LPG wholesale prices.
2024-01
Guernsey gas tariffs rise 8% from 31 January 2024 across the bailiwick, citing global wholesale gas prices.
2024-05
Mains standing charge rises a further 10% in May 2024.
2024
Customer-facing brand transitions from "Guernsey Gas" to "Guernsey Energy". The legal entity remains Guernsey Gas Ltd; the new brand reflects the IEG group identity and the long-term move toward BIOgas. New website at guernseyenergy.gg replaces guernseygas.com.
2025-01
A further 10% price increase takes effect on 1 January 2025, adding around £9.37 a month for the average household.
2026-04
Latest tariff revision takes effect on 7 April 2026: 4Gen Gas unit rate moves to 32.05 p/kWh, standing charge to 44.79 p/day, Super Economy 24 to 20.79 p/kWh.

Recognition

Guernsey Gas awards & accreditations

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

BIOgas LPG transition (planned)

2024 onwards

Guernsey Gas, as part of Islands Energy Group, has committed to a phased move from conventional LPG to BIOgas (renewable LPG) supply, part of the IEG net-zero roadmap announced after the Ancala acquisition.

Channel Islands Co-operative member

Long-standing

Showroom partnership with the Channel Islands Co-operative Society for energy advice clinics across Guernsey.

Together We Can Fund

Ongoing

IEG-wide community fund supporting vulnerable customers and energy-efficiency projects across the Channel Islands and the Isle of Man.

Customer service

How to reach Guernsey 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

01481 724811

Mon-Fri 8.30 a.m. - 5 p.m.

Gas emergency (24/7)

01481 749000

Gas escapes & emergencies on Guernsey

The Energy Centre

Admiral Park

Walk-in showroom, St Peter Port

My Account

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

Open the full Guernsey Gas contact directory

Save up to £300 per year

Independent comparison

Is Guernsey 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.

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Common questions

Guernsey Gas — frequently asked questions

Guernsey 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 Guernsey 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. Guernsey 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. Guernsey 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 Guernsey Gas on 01481 724811, Mon-Fri, 8.30 a.m. to 5 p.m. (closed weekends and Guernsey public holidays). For a full breakdown of phone lines (emergency, prepayment, HomeCare, bereavement, Welsh, Relay UK), see the Guernsey Gas contact page.

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