Smart Tariffs Ireland (2026) – Time of Use Electricity Explained
Smart tariffs use time-of-use electricity pricing. Instead of one flat rate, electricity prices change depending on the time of day. Homes with electric vehicles, solar panels or heat pumps may benefit from these plans, but only if electricity usage can shift into lower-cost periods.
Compare smart electricity plans
How do smart tariffs work?
Smart tariffs divide the day into different pricing windows. These usually include:
- Off-peak: lowest electricity price, often overnight.
- Day rate: standard daytime pricing.
- Peak rate: highest price during high demand hours.
Smart meters are required to access most time-of-use tariffs.
Who benefits most from smart tariffs?
EV owners
Drivers who charge overnight can often benefit from lower off-peak rates.
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Solar and battery homes
Some households use smart pricing to reduce import costs when solar generation is low.
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Heat pump homes
If heating demand can align with cheaper periods, some heat pump households may benefit.
When smart tariffs may not be suitable
- Your household uses most electricity during peak hours.
- You cannot shift usage to cheaper time windows.
- The peak rate is significantly higher than flat-rate alternatives.
In some cases, a competitive standard tariff may be more suitable.
Compare the wider electricity market
Before choosing a smart tariff, compare overall electricity pricing, including unit rates and standing charges. A lower off-peak rate does not automatically mean a lower annual bill.
Reviewing the full market helps ensure you choose the most suitable plan for your usage pattern.
FAQs
Do I need a smart meter for a smart tariff?
Yes. Smart tariffs require a smart meter to measure electricity usage by time of day.
Are smart tariffs cheaper?
They can be cheaper if you use electricity during off-peak periods. If most usage occurs during peak hours, costs may increase.
Are smart tariffs good for EV charging?
Many EV drivers benefit from lower overnight rates, provided charging is scheduled correctly.
Can solar homes benefit from smart tariffs?
Some solar households use smart pricing to manage import costs when solar generation is low, particularly during winter months.