Flogas told its customers what to do. It was right, and it was €137 short.
Flogas put electricity up about 11 per cent and gas about 12 per cent on 20 July, for customers on variable plans. Its own notice told those customers to move onto one of its discounted plans, which is genuinely good advice and does save them money.
It is also as far as any supplier can take you. Take the best discounted dual-fuel deal Flogas sells and you pay about €2,864 a year. The cheapest way to buy the same two fuels is about €2,727, with Energia. That gap is the bit a supplier cannot tell you and a commission-funded comparison site would rather you did not dwell on.
The short version
If you are a Flogas variable customer, moving to a Flogas discounted plan is a real improvement and takes one phone call.
If you are willing to switch supplier, you can do about €137 a year better than that.
And the cheapest option right now is a dual-fuel plan, not splitting your electricity and gas between two suppliers — but only by €11, which is close enough that it turns on how much you use.
What actually happened
About €7.58 a week, if you were on variable rates.
From 20 July, Flogas increased residential electricity by 10.9 per cent and gas by 11.8 per cent. In its own figures that is €4.11 a week on electricity and €3.47 a week on gas. Both unit rates and standing charges went up.
It applied only to customers on standard variable plans. If you were on a fixed-rate contract, or on one of Flogas’s discounted products, you were either unaffected or affected by less.
Standard variable is not a plan you can sign up for. It is where you end up when a discount runs out and nothing else happens, which is how most people arrive there without deciding to.
Flogas’s advice
Take one of our discounts. Which is true.
The notice points customers at its discounted plans and at its smart plans. Both are fair. Its cheapest electricity plan is the smart 24-hour one with a 29 per cent loyalty discount, and on average usage it comes to about €1,550 a year against the market’s cheapest at about €1,457.
Its gas is better placed. At about €1,314 a year it is the second cheapest gas plan we track, €33 behind Yuno Energy. If you only buy gas from Flogas, you are in decent shape and the rise has not changed that.
So this is not a story about a supplier being expensive across the board. Their gas is competitive. Their electricity is where the money is.
The part no supplier will tell you
€2,864 against €2,727.
For a household buying both fuels on average usage, Flogas’s best dual-fuel option works out at about €2,864 a year. The cheapest way to buy both, today, is Energia’s Smart 24 Hour dual plan at about €2,727.
That is €137 a year for a switch that takes about ten minutes and, in our experience of watching people put it off, about four months of meaning to.
Flogas cannot tell you this, and it would be strange to expect them to. What is less obvious is that most comparison sites will not tell you plainly either, because they are paid a commission by the supplier you end up with, and that changes which answer feels comfortable to give. We are not, so it does not.
The bit that surprised us
“Always split your fuels” is not right either.
The standard advice is that dual-fuel bundles are a trap and you should buy electricity and gas separately from whoever is cheapest at each. Often that is true. Right now it is not: the best two-supplier split we can build comes to about €2,738, which is €11 more than Energia’s dual plan.
Eleven euro is nothing. It is well inside the range where your own usage decides it, which is exactly why a flat rule is the wrong tool. The only way to know is to rank dual plans and split combinations in the same list and read the top of it.
That is what our electricity prices page does. Every dual plan and every split combination, one ranking, with settings for your meter, your usage and whether you are urban or rural.
One thing to diarise
Whatever you move to, it lasts twelve months.
Every energy discount in the Irish market runs for twelve months. We checked all 105 discounted plans in our catalogue and there is not a single exception. Some plans also carry a first-year credit, which disappears on the same schedule.
A Flogas variable customer got there because a discount ended and nothing told them. The plan you switch to has the same clock on it, so put the date in your calendar the day you sign up. More on the twelve-month cliff.
The detail, and the sources
The rise:Flogas announced on 19 June 2026 that residential electricity would rise 10.9% and gas 11.8% from 20 July 2026, applying to standard variable plans only, with fixed-rate contracts unaffected. Both unit rates and standing charges changed. The €4.11 and €3.47 weekly figures are Flogas’s own, based on the CRU’s Estimated Annual Bill. Source: Flogas residential price change notice, 19 June 2026.
Our figures: all plan costs are from our own catalogue, captured 20 to 22 July 2026 and therefore post-rise. They are costed at the CRU reference usage of 4,200 kWh electricity and 11,000 kWh gas, urban, smart meter, billed monthly, with direct debit and online billing assumed because 51 of the 55 discounts in the market require both. Standing charges, PSO levy and carbon tax are included.
The comparisons:Flogas best dual-fuel €2,864.04; Energia Smart 24 Hour dual €2,727.00; best two-supplier split €2,738.04 (Electric Ireland Home Electric + SST Saver 20% at €1,456.56 plus Yuno Energy Gas Variable at €1,281.48). Flogas cheapest electricity €1,550.28; Flogas gas €1,313.76.
Twelve-month discounts: all 105 discounted rows in our live catalogue across electricity and gas carry a twelve-month duration. No exceptions.
Figures were checked on 5 August 2026 and are for a household at CRU reference usage. Yours will differ, and the cheapest plan changes as suppliers move their rates — the price pages are rebuilt from each supplier’s published rates rather than from this post. We take no commission and there are no affiliate links here.