Energy prices in Ireland are among the highest in Europe, but a surprising amount of your bill is within your control. This guide covers the reliable ways to pay less — starting with the one most people never do: switching supplier — plus tariffs, standing charges and low-cost efficiency wins.
The essentials
- Switching supplier is the biggest quick win — often a few hundred euro a year
- Compare the total cost, not just the unit rate (watch the standing charge)
- Smart/night tariffs pay off if you can shift usage to off-peak
- A smart meter is needed for time-of-use tariffs and solar export payments
1. Switch supplier (the biggest quick win)
Irish energy suppliers offer their best prices to new customers. If you’ve been with the same supplier for more than a year, you’re probably on a standard rate and overpaying. Switching is free, takes minutes, and there’s no interruption to your supply.
- Compare deals on a CRU-accredited price-comparison site (such as bonkers.ie or switcher.ie).
- Look at the estimated annual bill for your usage, not just the headline discount.
- Set a reminder to switch again when your discount period ends — that’s when the savings disappear.
Tip
Have a recent bill to hand when you compare — your actual kWh usage gives a far more accurate estimate than the defaults.
2. Understand what’s on your bill
Your electricity bill is mostly:
- Unit rate — what you pay per kWh of electricity used.
- Standing charge — a fixed daily fee regardless of usage.
- PSO levy and VAT — set nationally.
A deal with a very low unit rate but a high standing charge may not be cheaper if you’re a low user. Always compare the total estimated annual cost.
3. Pick the right tariff for how you live
- Flat rate — simple; best if most of your usage is in peak evening hours.
- Day/night or smart tariff — cheaper off-peak hours. Worth it if you can shift dishwasher, washing machine, EV charging or a heat pump to those hours.
- A smart meter unlocks these tariffs and is required to be paid for solar electricity you export — see solar panels.
4. Low-cost efficiency wins
You don’t need to spend thousands to cut usage:
- Turn down the thermostat a degree and use heating controls and timers.
- Draught-proof doors, windows and the letterbox.
- Switch to LED bulbs and run appliances on eco/off-peak.
- Service your boiler and bleed radiators.
For bigger, structural savings, the real levers are insulation and, in the right home, a heat pump or solar panels — often part-funded by SEAI grants.
Note
This is general information, not financial advice. Energy prices and tariffs change frequently — always compare current deals on a CRU-accredited site before switching.