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Gas & Electricity Guides

Learn all about energy billing, usage, switching and much more!

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The residential energy market in Ireland has been completely transformed since the gas and electricity sectors were deregulated. The purpose of deregulating the market was to invite more competitive pricing and innovative offers for electricity and gas customers, but did it have the desired effect?

Read on to find out more about the current lay of the land when it comes to gas and electricity in Ireland.

Energy suppliers in Ireland

A gold flame and a gold lightbulb

Following the acquisition of Just Energy’s Irish interests by Flogas, Ireland now has eleven gas and electricity providers. Of these eleven, two are prepay power only (PAYG), and seven offer dual fuel tariffs.

Despite marget deregulation, the Irish energy market is still relatively underdeveloped, especially when compared with other markets, such as the UK, which have been deregulated for longer and have much more intense energy provider competition. Yet all this could change come the construction of the Celtic Interconnector.

To find out more about gas and electricity providers in Ireland, you can also check out our page dedicated to Irish energy providers.

Prepaid providers

Are you the type of person who prefers to maintain a tight rein on spending? Then PAYG gas and/or electricity might be for you. PAYG is much more expensive than traditional billing accounts however, so we recommend checking out our article on the pros and cons of PAYG before jumping in feet first.


Pinergy is a PAYG electricity-only supplier which supplies both residential and business energy. Pinergy’s aim is to foster more sustainable usage of electricity by increasing awareness and changing customer’s habits through its smart meter, in-home display, and app. 


PrePayPower is a dual-fuel PAYG electricity and gas supplier with some of the most positive customer reviews in Ireland. The company also has an entire section of their website dedicated to landlords, as PAYG can be ideal for student accommodation or short-term accommodation.

Dual fuel providers

Sometimes it’s just handier to have all your bills come from the same place. With some providers, you can even throw in your waste management services (Panda Power and Panda for example) or get some great deals on smart thermostats.

Bord Gáis Energy

Bord Gáis Energy was one of the original Irish energy suppliers before deregulation, supplying Ireland with natural gas. They now also provide electricity and have some deals which include a free Hive thermostat

Electric Ireland

Electric Ireland was the other original Irish energy supplier, previously known as ESB, which provided electricity to the Republic of Ireland. The company has now added gas to its portfolio of customer offerings, and you can also avail of the Nest and Climote smart thermostat offers.


Energia is an up-and-coming dual fuel company which entered the market shortly after deregulation and is now the fourth biggest electricity and gas supplier in Ireland, offering renewable electricity tariffs.


Flogas started out as a well respected LPG provider, before moving into the residential natural gas market, and in 2019 they acquired Just Energy’s customers and began offering electricity and dual fuel tariffs in 2020.

Iberdrola Ireland

Iberdrola Ireland is the Irish branch of Spanish energy giant Iberdrola. The company joined the Irish market in 2019, at first offering electricity-only tariffs but has now branched out into gas tariffs.

Panda Power

Panda Power is the sister company of Panda, the well-known waste management company. Offering renewable energy, you can also get a discount on your rubbish collection if you are with both for energy and waste management.


As mentioned above in the section on prepaid energy providers.

SSE Airtricity

SSE Airtricity provides green renewable energy and has been operating in Ireland since 2008. The company is part of the SSE plc which supplies electricity and gas in several countries. SSE Airtricity also operates an interesting loyalty rewards system, known as SSE Rewards, as does Electric Ireland.

Electricity-only providers

Maybe you rely on oil or LPG for your home heating and hot water needs and just need to get your electricity sorted? The providers below just offer electricity contracts, although most dual fuel providers will do electricity-only packages as well.

BE Energy

BE Energy is a small electricity supplier which is part of the larger company Budget Energy, based in Northern Ireland, and provides electricity to homes, businesses and farms.


Glowpower is the newest addition to the Irish energy market, currently offering interesting electricity tariffs with discounts for longer periods of time (up to three years).


As mentioned above in the section on prepaid energy providers.

Compare electricity and gas

Electricity symbols over a calculator

Electricity and gas jargon, VAT and no VAT, offers, discounts, can be pretty difficult to get to the bottom of how much the tariff you are on or are checking out will actually end up costing you. Check out how we compare energy providers, or read on to find out more about getting cheaper electricity and gas bills.

How to get the cheapest electricity and gas

Electricity and gas providers in Ireland are somewhat at the mercy of Ireland’s expensive energy and the volatility of the market. If you are on a variable contract, chances are you could face up to three price increases per year as suppliers increase their tariffs in response to shifting market expenses.

The issue is that providers change their tariffs at different times, hoping to convince customers that their offer is the cheapest, only to increase tariffs a month or two later.

To calculate the real cost of a tariff, you’ll need to carry out any discounts against the unit rate (discounts never apply to the whole bill) and add standing charges and levies, as well as adding VAT at 13.5% to get a sense of what it’s going to cost you. With cashback offers, you simply do the math and subtract the cashback.

However, it is still worth doing your homework to see when was the last time that supplier increased their tariffs - if it’s coming up to six months than chances are they’ll be increasing them soon after you’ve already locked yourself into the tariff.

The only way to be sure that you are saving hundreds of Euros a year on your energy bills is to switch electricity or gas provider every 12 months. Apart from the longer-term electricity plans offered by Glowpower, most discounts only run for the first 12 months of a contract as a new customer. 

After that, if you don’t switch to a new provider or negotiate a new rate with your current provider, you’ll be moved on to the standard tariff, which can in some cases cost you up to €300 extra a year. 

Try and also keep in mind what you would like from your supplier - excellent customer service, renewable energy tariffs, prepaid or long term contracts, free or subsidized smart thermostats etc. Sometimes it is worth paying a few quid more for a supplier to ticks all your boxes.

Moving into a new home?

A lightbulb and a flame in an open cardboard box

If you’re building your dream house and have no idea how to get electricity or gas connected in a new build, check out our guide. The main point to keep in mind is that you do NOT have to accept the default supplier, usually Electric Ireland.

If you are renting or moving from a house you already own, make sure to take photos with a newspaper from that day in them, of the current gas and electricity meter readings so that you can send them to your supplier and receive a final bill.

Similarly, when moving into a new home, take similar photos so you can check if you are being billed correctly or are being charged for energy expenditure caused by the previous inhabitant. 

Note that in the case of buying a new home, you are responsible for any billing amounts accrued from after the date of legal possession, not necessarily the date you move in.

Sustainable and renewable energy in Ireland

2020 is D-Day for Ireland and its Paris agreement commitments, but unfortunately, we are set to miss our carbon emission reduction targets. With Brexit and the end of the transition period looming on the horizon as well as the repercussions that could arise from decoupling the Irish and UK energy markets, sustainable and renewable energy is even more important for Ireland than ever before.

In 2020, Irish citizens can increase their involvement in meeting energy commitments by:

  1. Lowering their carbon footprint
  2. Investing in renewable energy such as solar energy
  3. Updating insulation in older homes 
  4. Reducing overall energy expenditure (here are 101 tips on how to do so!)

The bottom line is that by limiting our energy expenditure and increasing the effectiveness of the energy units we do use, we’ll not only contribute to lowering carbon emissions, we’ll also save money.