Cheapest Energy Tariff in Ireland Today
Live cheapest electricity, gas, and dual fuel tariffs available to Irish households right now. Data from all 7 major suppliers, refreshed every hour.
Last updated: 6 June 2026
⚡ Cheapest electricity
Energia · Smart Data Electricity Plan
16.91c/kWh
~€712/yr · 72.61c/day
Includes 27% new customer discount (12 months)
See all tariffs →🔥 Cheapest gas
SSE Airtricity · 1 Year Gas 16% (New)
8.77c/kWh
~€891/yr · 26.28c/day
Includes 16% new customer discount (12 months)
See all tariffs →🏠 Cheapest dual fuel
Energia · Smart Data Dual Fuel Plan
16.91c/kWh
~€815/yr · 111.40c/day
🌿 Green energyIncludes 27% new customer discount (12 months)
See all tariffs →How these rankings work
- ⚡ Electricity — ranked by annual cost for a 4,200 kWh household (Irish average)
- 🔥 Gas — ranked by annual cost for an 11,000 kWh household
- 🏠 Dual fuel — cheapest bundled electricity + gas plan at 4,200 kWh electricity
- 📊 Annual cost = (unit rate × kWh + standing charge × 365) minus any new customer discount
- 🔄 Prices reflect the latest scraped tariff data — refreshed every hour
Why switching energy supplier in Ireland saves money
The difference between the cheapest and most expensive electricity tariff in Ireland can be €300–€500 per year for an average household. Despite this, over half of Irish households have never switched energy supplier. If you haven't switched in the last 12 months, there is a very good chance you are overpaying.
Irish energy suppliers offer their best prices to new customers. If you have been with your current supplier for more than a year, you are almost certainly on their standard rate — typically 15–25% more expensive than their best new customer deal. The solution is to switch regularly, every 12–18 months, to stay on a competitive rate.
Switching energy supplier in Ireland does not interrupt your supply. The physical delivery of your electricity or gas does not change — only the billing changes. The process takes around 21 days and is handled entirely online. Use the GoSwitch comparison tool to find the cheapest deal for your specific usage before switching.
Get a personalised comparison
Enter your annual kWh usage to see exactly how much each tariff would cost you — not just the average household.
Compare tariffs for my usage →Related guides
Annual costs are estimates based on published tariff rates and the stated usage figures. Actual bills may vary. Discounts shown apply to new customers only and expire after the stated period. Always verify on the supplier's website before switching. GoSwitch is an independent comparison service.