Every Guernsey Gas tariff available right now — unit rate, standing charge, contract length, exit fee and renewable status. Last verified 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).
Current tariffs
Guernsey Gas domestic tariffs
Prices below are the Guernsey Gas published rates for a typical single-rate meter on direct debit, excluding VAT. Final bill amounts depend on your region and meter type.
4Gen Gas
variableRolling, no fixed term
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 meter reads, payable online, by direct debit or in person at The Energy Centre.
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.
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 primary fuel.
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 higher consumption. Same 44.79 p/day standing charge as the mains equivalent.
Prices verified against the Guernsey Gas published price list on 7 April 2026. Always check the live price on the supplier's own website before signing up.
Selectra expert
Which Guernsey Gas tariff fits you, and what will you actually pay?
Guernsey Gas publishes four domestic plans, one all-rounder (4Gen Gas), a cooking-only mains plan (Standard 24), and two high-usage Economy plans (mains and LPG cylinder). The right choice depends almost entirely on whether you use gas for central heating and hot water, or just for cooking and a gas fire. The unit-rate gap between Standard 24 and Super Economy 24 is 8.69 p/kWh, so the daily standing charge pays for itself once you use more than around 5,150 kWh a year.
4Gen Gas
variable · all supply types
Best fit if — Households on bottled or mini-bulk LPG, or anyone who wants a single tariff that covers heating, hot water, cooking and a gas fire without choosing between the Standard 24 and Super Economy 24 plans.
Skip if — You use gas for central heating and hot water on the mains network and your annual usage is above ~5,150 kWh, Super Economy 24 is cheaper at that load.
What you'll actually pay
32.05 p/kWh + 44.79 p/day standing charge. On a typical 11,500 kWh annual usage that works out at about £3,850 a year.
The default tariff for off-mains LPG households, on mains, only worth it if your usage is genuinely light.
Standard 24
variable · mains
Best fit if — Mains households that use gas only for cooking and a gas fire, no central heating or hot water on gas. Zero standing charge means you pay nothing on days you don't use any gas.
Skip if — You also have gas central heating or gas hot water, the higher unit rate will quickly swallow the saving from skipping the standing charge.
What you'll actually pay
29.48 p/kWh, no standing charge. A cooking-only household using ~600 kWh a year pays about £177 a year.
The most affordable plan for genuinely light-use customers, not the right home for any household running gas CH.
Super Economy 24
variable · mains
Best fit if — The standard plan for mains households running gas central heating, hot water and cooking on the same supply.
Skip if — You only use gas for cooking or a gas fire, the daily standing charge will outweigh the lower unit rate.
What you'll actually pay
20.79 p/kWh + 44.79 p/day standing charge. On a typical 11,500 kWh annual usage that works out at about £2,556 a year.
The cheapest mains plan for medium-to-high usage, the right home for any standard family on gas heating.
Super Economy 24 LPG
variable · metered LPG cylinder
Best fit if — Off-mains households on metered LPG cylinder supply with high annual usage (above ~20,000 kWh), the tier-2 rate kicks in above 54.79 units a day and rewards heavy heating loads.
Skip if — Your usage is low or you are off-mains on bottled gas only, 4Gen Gas is simpler and lets you stay on a single price.
What you'll actually pay
20.79 p/kWh (tier 1) / 19.34 p/kWh (tier 2 above 54.79 units a day) + 44.79 p/day standing charge.
Niche but powerful: a clear winner for high-usage off-mains households running LPG central heating.
All annual estimates use Guernsey Gas published rates from 7 April 2026 and assume a typical UK gas consumption profile (11,500 kWh) where applicable. Your actual bill depends on your real annual kWh, your meter type and any seasonal usage pattern. Quoting your last full year of bills is the only accurate way to compare.
How to compare UK tariffs
Three numbers that decide your bill
1
Unit rate (p/kWh) — the cost of the energy you actually use. The Energy Price Cap caps the unit rate on the default (Standard Variable) tariff. Fixed tariffs are usually slightly above or below the cap.
2
Standing charge (p/day) — what you pay per day even if you use zero energy. Covers network costs, smart-meter rollout and policy levies. About 53p/day for electricity and 32p/day for gas on a typical 2026 tariff.
3
Exit fee — what you pay to leave early on a fixed tariff. Typically £25-£75 per fuel. None on Standard Variable. None in the final 49 days of any fixed contract.
Save up to£300per year
Is Guernsey Gas the cheapest for your usage?
Headline rates lie. The only way to know is to compare against your real annual kWh. Selectra's comparison uses your postcode + 12-month usage to find the cheapest current deal.
Every UK domestic energy tariff has two components: a standing charge (a flat fee in pence per day, even if you use zero energy), and a unit rate (in pence per kWh you actually consume). Your bill = (standing charge × days) + (unit rate × kWh used) + VAT (5%). Compare both numbers — a tariff with a low unit rate but a high standing charge can cost more than the reverse if you use little energy.
The Energy Price Cap set by Ofgem limits how much suppliers can charge for the default (Standard Variable) tariff. It is reviewed every three months. It does not cap fixed-term tariffs — those can be cheaper or more expensive than the cap depending on wholesale prices.
Most UK fixed-term tariffs include an exit fee (typical range: £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. The default Standard Variable tariff has no exit fee.
Many UK suppliers offer 'green' or '100% renewable' tariffs which match your annual consumption with REGO certificates. This is a paper-trail match, not a guarantee that the electrons reaching your home are renewable — but it does fund continued renewable generation. Tariffs marked '100% renewable' below carry REGO backing.
If wholesale prices are forecast to rise, fixing locks in today's price for the contract length. If they are forecast to fall, the Standard Variable tariff (capped by Ofgem) tracks the wholesale market down. The right choice depends on your appetite for stability vs. potential savings — Selectra's comparison tool factors in both.
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