This matchup is really a question about loyalty: one side pays a little for it, the other charges full price for it. Bord Gáis Energy — a Centrica-owned retailer, not the pipe network — is genuinely sharp on gas: 9% off units on what it says is the market’s lowest gas standing charge (€131.69 a year), for a €1,388 first-year Estimated Annual Bill at CRU typical usage, and when the 12 months end a 5% loyalty discount carries on for anyone who keeps direct debit and paperless billing. SSE Airtricity plays the opposite game: deeper sign-up discounts — 30% off gas for a €1,166 year-1 EAB, 35% off electricity inside the dual bundle — then the full standard rate for everyone who stays.
On the numbers a switcher pays in the first year, SSE wins all three columns: €1,166 vs €1,388 on gas, €1,492 vs €1,557 on electricity (with a €1,295 fixed-rate option below both), and €2,572 vs €2,867 on dual fuel. On the numbers a stayer pays in year 2, Bord Gáis wins two of three, by our sums at today’s rates. We score SSE Airtricity 7.1 and Bord Gáis 7.0: switch to SSE with a month-11 reminder set, stay with Bord Gáis only if you know you will never set one. Full field: best energy suppliers for Ireland.
Quick comparison
Side by side from published August 2026 prices and contract terms. Green highlights the better figure on each measurable row.
| Bord Gáis Energy | SSE Airtricity | |
|---|---|---|
| Our score | 7.0 | 7.1 |
| Elec year 1 (EAB) | €1,531 | €1,295 |
| Elec year 2 (EAB) | €1,977 | €2,010 |
| Gas year 1 (EAB) | €1,388 | €1,166 |
| Gas year 2 (EAB) | €1,498 | €1,542 |
| Fuels | Electricity + Gas | Electricity + Gas |
| Dual fuel | Yes | Yes |
| Prepay option | Yes | No |
| Exit fees | €50 early-exit fee on 12-month fixed-term plans (the plan terms word it per contract — dual-fuel customers should confirm in their welcome pack). No fee at contract end or inside the 14-day cooling-off. | €50 per fuel on the standard discount plans and €100 per fuel on the fixed-rate plans (both per the current T&Cs, checked 28 Aug 2026). Dual fuel means two fees. No charge inside the cooling-off window. |
Year 1: SSE undercuts the gas incumbent on gas — and everything else
Start with the fuel this audience cares about. Bord Gáis’s gas offer is real: 9% off units on a €131.69 standing charge it calls the market’s lowest, for a €1,388 first-year EAB at 11,000 kWh. SSE simply discounts harder — 30% off for a €1,166 EAB, €222 less, despite a dearer €152.31 standing charge and a slightly higher standard unit rate underneath. Electricity repeats the order: SSE’s 30%-off plan prices a typical urban home at €1,492 against €1,557 on Bord Gáis’s 26% discount (€1,531 on the smart-meter version), and SSE’s fixed-rate plan undercuts everything at €1,294.70 — the cheapest electricity number on this page, with a catch we cover under contracts.
Dual fuel is the bill this audience actually buys. SSE stacks its deepest discounts — 35% off electricity, 30% off gas — into a plain 24-hour bundle at €2,571.89. Bord Gáis’s headline dual deal is €2,867, and it rides the Smart All Day tariff: 22% and 21% off with one flat smart rate all day, which needs a communicating smart meter. The €295 gap is the price of the badge in year 1. A well-below-average gas user narrows it — Bord Gáis’s cheaper standing charge does more of the work on a small bill (see best energy for low usage) — but at typical usage there is no column Bord Gáis wins.
Year 2: the 5% loyalty discount vs the full standard rate
This is the round the incumbent wins. When an SSE discount ends, the account rolls onto the full standard rate — about €2,010 for urban electricity and €1,542 for gas, by our calculations from SSE’s published standard tariffs. When a Bord Gáis discount ends, a 5% loyalty discount continues for as long as you keep direct debit and paperless billing: roughly €1,923 electricity and €1,437 gas. Nobody should celebrate a €1,923 electricity bill, but it is €87 under SSE’s landing — and on gas the year-1 positions fully reverse.
| Year 1 | Year 2 landing | Two years, our sum | |
|---|---|---|---|
| Gas — SSE | €1,166 | ~€1,542 standard | ~€2,708 |
| Gas — Bord Gáis | €1,388 | ~€1,437 with loyalty 5% | ~€2,825 |
| Electricity — SSE | €1,492 | ~€2,010 standard | ~€3,502 |
| Electricity — Bord Gáis | €1,557 | ~€1,923 with loyalty 5% | ~€3,480 |
| Dual — SSE | €2,572 | ~€3,552 standard | ~€6,124 |
| Dual — Bord Gáis | €2,867 | ~€3,360 with loyalty 5% | ~€6,227 |
The trap on this page: treating the SSE switch as permanent. From year 2 onwards SSE’s standard gas rate costs about €105 a year more than staying loyal to Bord Gáis, and every year asleep after that repeats the loss. The €222 year-1 gas saving only stays a saving if you re-shop — or ring for a fresh deal — at month 11: year 1 vs year 2 energy prices.
Two caveats to the loyalty story. The 5% is conditional — miss the direct debit or go back to paper bills and it stops. And it discounts a standard rate Bord Gáis itself raised 13.5% in October 2025, so “gentler than SSE” is not the same as “good”. Over two years our sums still put SSE ahead on gas and dual because the deep first year does so much lifting; Bord Gáis edges electricity. SSE pays you to arrive, Bord Gáis pays you a little to stay — and the households that lose most are SSE customers in year 3.
Billing: one supplier publishes its numbers, one takes prepay
Day to day the two run similar bill-pay operations — app, online account, direct debit, dual fuel on one bill — with middling reputations to match: we rate SSE’s service 6.5 and Bord Gáis’s 6, and both attract customer reports of slow complaint handling. Two SSE differences matter. It publishes the Estimated Annual Bill for every plan on its tariff sheets — rarer than it should be, and why this page can quote its figures to the cent. And it runs phone and webchat support at scale: around 460,000 electricity customers in the Republic, per RTÉ’s September 2025 reporting.
Bord Gáis counters with breadth. It is the only one of the two with Pay As You Go — both fuels, priced at the standard tariff with no prepay premium (context: prepay vs bill pay). Around the bill sits the Centrica ecosystem: boiler-service plans, Hive heating controls, a Rewards Club. None of that makes a unit cheaper, but a gas-heated home that wants the boiler serviced by the company billing for the gas cannot buy that from SSE at all. The string attached: every Bord Gáis discount, including the year-2 loyalty 5%, requires direct debit and paperless billing to stay alive.
Contracts: €50 a fuel either way — €100 on SSE’s fixed plan
The paperwork is nearly symmetrical. Both sell 12-month contracts with a €50-per-fuel early-exit fee on the standard discount plans and 14 days’ cooling-off, and on both a dual-fuel contract means two fees — €100 to walk out mid-term. The asymmetry is SSE’s fixed-rate electricity plan: the €1,294.70 EAB carries a €100-per-fuel termination charge in the T&Cs, double the going rate. That is the fair price of insurance — fixed units and standing charge an autumn rise cannot touch — but it changes the exit maths if a cheaper market appears mid-term.
For the long-standing Bord Gáis customer this page is written for, the more useful fact is about leaving, not joining: exit fees only apply inside a live fixed term. If your 12-month deal lapsed years ago and you have drifted on the standard (or loyalty) rate since, you owe Bord Gáis nothing to go — and the switch itself is SSE’s job, two to four weeks with the gas flowing throughout (walkthrough: how to switch supplier). Track record cuts both ways: Bord Gáis raised electricity 13.5% from 12 October 2025 but left gas alone; SSE raised standard electricity twice in 2025 — 10.5% in April, 9.5% more from 20 October, with 8.4% on gas in the spring round. Neither variable rate is a resting place.
Green claims: two certificate stories, one grid
SSE wears the bigger green badge, so test it first. It discloses 100% renewable electricity in the CRU/SEM fuel-mix report by matching customer demand with Guarantee of Origin certificates — and even with those certificates counted, the 2024 all-island mix was 62.35% renewable. What gives SSE’s story more substance than most is the hardware: the SSE group genuinely builds and operates wind farms on this island. What gives it less is the mechanism — certificates can be bought across Europe, and the electricity at your socket is the same grid mix on any supplier (the regulator’s material at cru.ie explains the disclosure).
Bord Gáis tells a quieter version of the same story: electricity marketed as 100% renewable via GO certificates, subject to CRU Green Source verification, plus 10% of its gas from renewable sources — the more distinctive line for a gas-heated household, since decarbonising a therm is harder than certifying a kilowatt-hour. Neither badge means your home runs on Irish wind. If green is the reason you are switching, rank the evidence, not the logos: best green electricity puts verified Irish community generation — see Community Power — above every certificate story, including these two.
The switcher’s maths vs the stayer’s maths
Pick SSE Airtricity if you are doing what this page assumes: actively moving a long-standing gas or dual-fuel account. Every year-1 bill is lower — €222 on gas, €65 on electricity, €295 on dual fuel — and the fixed plan suits anyone who would rather lock a rate than chase the deepest discount. The condition is behavioural, not financial: put a month-11 reminder in your phone, because SSE has no loyalty rate and the standard-rate landing hands the win straight back. Pick Bord Gáis if you are the opposite household — you know you will not re-shop, you want PAYG at the standard tariff, or the boiler-care-and-Hive bundle earns its keep on your bill.
One refinement before you commit: a dual-fuel household chasing the absolute floor should ask whether any single supplier deserves both fuels — splitting SSE gas from a cheaper electricity brand can beat either bundle (start at cheapest electricity, or let find your energy do the sorting). If this pair is not the real shortlist, the neighbouring matchups are Electric Ireland vs Bord Gáis, Electric Ireland vs SSE Airtricity, Energia vs SSE Airtricity, Bord Gáis vs Energia and Flogas vs Bord Gáis. matched.ie is not a CRU-accredited price-comparison site — for the regulated comparators, see the accredited list at cru.ie.
Which should you choose?
It comes down to cost profile, contract terms, and how you like to deal with a supplier. Use this fast decision frame.
Choose Bord Gáis Energy if
You know you will not re-shop at month 12 — the 5% loyalty discount lands year-2 gas at about €1,437 and electricity at about €1,923, both below SSE’s standard rates. You want Pay As You Go on either fuel at the standard tariff, a boiler-care plan on the same bill, or the lowest gas standing charge (€131.69) because your gas usage is modest.
Check Bord Gáis Energy →
Choose SSE Airtricity if
You are switching now and want the cheapest first year on every bill — €1,166 gas, €1,492 electricity (€1,295 fixed), €2,572 dual fuel at typical usage. You will set a month-11 reminder before the standard rate lands, or you want a genuine 12-month fixed rate that an autumn price rise cannot touch — accepting the €100-per-fuel exit fee that comes with it.
Check SSE Airtricity →Advertiser disclosure: we may earn a commission when you buy through links on this page. That never affects scores or the winner.
