What cheapest really means
A provider can look cheap because it advertises a large discount, but the total bill can still be higher if the starting unit rate or standing charge is expensive.
The number to compare is estimated annual cost. That means your expected kWh usage, your meter type, the day or night split if relevant, the standing charge, VAT, and the length of any discount.
- Low usage households should watch standing charges closely.
- High usage households usually feel unit rate differences more strongly.
- Night saver, EV, and smart meter customers need a separate calculation because the cheapest day rate may not be the cheapest overall plan.
Providers to compare in 2026
The main residential electricity brands to check include Electric Ireland, Bord Gáis Energy, Energia, SSE Airtricity, Flogas, Yuno Energy, Pinergy, Waterpower, and Prepay Power where suitable.
Availability, tariff type, and online switching routes vary. The right shortlist depends on whether you want electricity only, dual fuel, a smart tariff, a night saver tariff, or a prepay setup.
The cheapest deal changes during the year
Irish energy pricing moves when providers change standard rates, when network and policy charges are updated, and when new customer discounts come and go.
That is why a one-time comparison can go stale. A deal that was best in March may not be best by September, especially if your introductory discount expires in between.
The Sortd angle
Sortd turns the cheapest provider question into an ongoing check. You compare today, save your plan, and get reminders when your renewal window is close or when market changes make it worth checking again.