Cheapest Gas and Electricity Supplier in Ireland 2023

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With so many deals available, it can be hard to know who has the cheapest electricity prices in Ireland. We compare the energy market for you to see who has the current cheapest electricity offers, the cheapest gas, the best dual fuels plans, and how to easily compare prices to find the best electricity and gas tariff for your home.

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Who Is the Cheapest Supplier in Ireland?

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Knowing who the cheapest gas and electricity supplier in Ireland is isn’t as simple as just comparing the rates. Since each supplier has their own tariffs and discounts that vary, the cheapest supplier might depend entirely on the tariff.

To simplify matters for consumers, we have compared all the current rates available to bring you the cheapest electricity in Ireland prices. Keep in mind that if your home is connected to the natural gas grid it may also be more cost-effective for you to compare dual-fuel deals. Besides switching to a cheaper tariff, customers can also save money on their bills through collective switching.

Who Is the Cheapest Electricity Supplier in Ireland?

When it comes to finding the cheapest electricity supplier, the important place to start is looking at energy suppliers’ best offers for their new customers. This is usually done by taking their standard rates and applying a discount that will usually last you a year or more. Here’s a table showing you the latest 24 urban meter rates and offers from all of Ireland’s suppliers:

Cheapest Electricity Offer per Supplier
Supplier Best Offer Estimated Annual Bill
Flogas No Discount €1,758.51
Energia 10% on all tarriffs €1,792.82
SSE Airtricity 15% on Electricity €1,861.96
Yuno Energy Fixed Discount €1,862.45
Waterpower No Discount €1,865.44
Community Power No Discount €1,937.87
Bord Gáis 15% on all tarriffs €2,001.47
Electric Ireland 5.5% or 8.5% on DF €2,020.43
Ecopower No Discount €2,116.77
Pinergy No Discount €2,184.85
PrepayPower No Discount €2,245.24

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*Figures are for illustrative purposes only. Calculations based on average consumption figures for an urban home with a 24-hour standard meter unless specified. All discounts and cashback have been applied. This also includes the PSO Levy at  €0.00.
Last updated: 03/10/2023.

These offers are based on the average consumption figures from the Commission for the Regulation of Utilities (CRU) estimations of 4,200 kWh of electricity per year using our calculations of rates and standing charges. Some prices might be slightly different on official supplier's websites.

Who Has the Cheapest Smart Tariff?

The above rates are for those customers with a 24 urban meter however there are many different tariffs on offer from suppliers. With smart meters becoming more and more popular in recent years, there are specific tariffs catered for smart meter customers:

Cheapest Smart Meter Tariffs in Ireland
Supplier Estimated Annual Bill (EAB)
Energia €1,705.81
Flogas €1,757.49
Waterpower €1,897.46
SSE Airtricity €1,962.79
Community Power €1,999.57

Smart meter rates calculated according to latest rates published by suppliers with applied discounts. Calculations made by Selectra, actual supplier offers may vary.
Last Updated: 03/10/2023

Who Has the Cheapest Prepay Tariff?

Prepay electricity is also a popular option. Customers should always keep in mind that even the cheapest prepay electricity will still be more expensive than direct debit tariffs. See the table below and compare prepay electricity prices.

Cheapest Prepayment Electricity Offer per Supplier
Supplier Best offer Price per year
Pinergy Standard €2,184.85
PrepayPower Standard €2,245.24
Electric Ireland Smarter Prepay Electricity  €2,251.84

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*Figures are for illustrative purposes only. Calculations based on average consumption figures for an urban home with a 24-hour standard meter. All discounts and cashback have been applied.
Last updated: 03/10/2023

Who Has the Cheapest Nightsaver Tariff?

Those with a nightsaver meter will want to compare electricity prices between providers and also compare it to standard or smart meter offers. The type of meter you have in your home can affect your prices. Here is a list of the best nightsaver suppliers in the table below.

Nightsaver Prices in Ireland
Supplier Best Offer Estimated Annual Bill
Flogas No Discount €1,541.52
SSE Airtricity 20% Discount €1,650.92
Community Power No Discount €1,683.79
Waterpower No Discount €1,701.77
Energia 10% Discount €1,705.81

*Prices include VAT, standing charges, levies, and provider discounts. All tariffs are based on Urban standing charges.
Last updated: 03/10/2023.

Who Is the Cheapest Gas Supplier in Ireland?

We have listed the cheapest gas offers in Ireland in the following table so you can compare gas prices easily. All calculations are based on 11,000kWh of annual gas usage. You will also usually need to sign up for paperless billing and direct debit to take full advantage of any available discounts.

Cheapest Gas Offer per Supplier
Supplier Best Offer Estimated Annual Bill
Energia 10% on all tarriffs €1,419.74
Flogas Fixed Rate Gas 1yr €1,466.15
Bord Gáis 15% on all tarriffs €1,640.21
SSE Airtricity 10% on Gas €1,679.70
PrepayPower No Discount €1,797.34

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*Figures are for illustrative purposes only. All discounts and cashback have been applied to price. Calculations based on average consumption figures.
Last updated: 03/10/2023

prepay meter

Who Has the Cheapest Prepay Gas Tariffs?

Prepay gas is also an option. As a rule of thumb, even the best prepay gas plan will remain more expensive than a direct debit tariff.

The following table compares the different prepay gas prices available in Ireland. It is important to note that Electric Ireland can only offer you prepay gas if you have an existing prepay meter from another supplier, they will not install one for you.

Cheapest Prepayment Gas Offer per Supplier
Supplier Best offer Price per year
Flogas Standard €1,620.04
PrepayPower Standard €1,797.55

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*Figures are for illustrative purposes only. Calculations based on average consumption figures for an urban home with a 24-hour standard meter. All discounts and cashback have been applied.
Last updated: 03/08/2023

Is There a Green Gas Supplier in Ireland?

Gas emits carbon emissions, it is not a renewable source of energy. That said, SSE Airtricity has come up with an interesting approach to counter this. The company promotes 'green gas' by offsetting these carbon emissions by purchasing credits.

The SSE gas prices are consequently higher than the competition but, at least you can have a clean conscience knowing your gas consumption is being compensated to counterbalance its effect. It is the only gas provider in Ireland to offer this.

Which Supplier Has the Cheapest Duel Option?

Dual fuel tariffs can often save you money on your electricity and gas by bundling them together into one tariff. These deals are usually less of a hassle than having two separate suppliers, but are they worth it financially? You can find the cheapest dual fuel offers in the following table.

Cheapest Duel Fuel Offer per Supplier
Supplier Best offer Price per year
Energia 10% Electricity discount
10% Gas discount
€3,212.55
Flogas No Discount

€3,224.66

SSE Airtricity 20% Electricity discount
20% Gas discount
€3,383.63
Electric Ireland 8.5% Electricity discount
8.5% Gas discount
€3,738.38
Bord Gáis 15% Electricity discount
15% Gas discount
€3,895.82
Iberdrola Has stopped trading No longer available
Panda Power Has stopped trading No longer available

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*Figures are for illustrative purposes only. All discounts and cashback have been applied to the price. Calculations based on average consumption figures for an urban home with a 24-hour standard meter.
Last updated: 03/10/2023

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Is Switching Suppliers Worth It?

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The CRU recommends customers switch their electricity and gas providers around once a year in order to get the cheapest energy provider and the best deal. By switching regularly, you can usually save up to €500 a year on your electricity bills just from taking advantage of discount and cashback offers for new customers.

How Do I Know When To Switch?

You should look to switch your energy suppliers when you come to the end of your current contract or discount. When you go back on the standard rates, your bill automatically becomes more expensive and you’ll usually be paying much higher than before. To avoid this, you can take out another discount with your supplier, but really switching is the best way to guarantee the best deal for your household.

How Long Will It Take To Switch?

Your switch will take approximately 15 days, including a 14-day cooling-off period. During these 14 days, you’re free to cancel without any penalties and stay with your current supplier if you change your mind. Changing providers should not take more than 28 days.

Check Out Our How To Switch Guide!

The services and products mentioned on this website may only represent a small selection of the options available to you. Selectra encourages you to carry out your own research and seek advice if necessary before making any decisions. We may receive commission from selected partner providers on sales of some products and/or services mentioned within this website. Our website is free to use, and the commission we receive does not affect our opinion or the information we provide.