Is it Cheaper to Use Electricity at night in Ireland?

If you have a night meter installed and are signed up to a Night Saver tariff with your electricity supplier – your electricity rate per Kwh will be cheaper at night. However , electricity is NOT cheaper for everyone at night.

If you are on a Nightsaver tariff it will be cheaper to use Electricity at night. You will be charged a lower unit rate for electricity during the night.. but a higher rate during the day. The times of the cheaper night-time electricity rates run from: –

  • 11 pm-8 am (End October to end of March)
  • from midnight to 9 am in the summer months. (April to end of October)

However,the lower night rates are offset by a higher day unit cost and a bigger standing charge.

Compare the night saver prices from all the different Electricity providers here at

How Much Cheaper is Electricity With a Night Saver Meter?

Comparison of Normal Tariff with NightSaver

Prices from Electric Ireland (From November 2021)

Prices inc VATNormal TariffNightSaver Tariff
Day Rate23.97c25.59c
Night Rate23.97c12.63c
Standing Charge €209€283

You will only get cheaper electricity bills with a Night Saver Meter if you use a significant amount of electricity at night. Homes with electric storage heaters, electric car chargers and heat pumps will usually use more electricity at night.

So – as you can see from the figures below, in order to make a saving,more than 30% of your electricity usage would need to be during the night. This would equate to around 3 units for the average household usage of 11 units per day (or 4,200kWh annually).

For example, an Electric Vehicle charger could typically use 6Kwh overnight . (Based on mileage of 18000km per annum, 15kWh/ 100kms and 80% home charging at night).

A Heat pump set to heat the hot water overnight might use about 4kWh a night . (based on 10kWh of hot water at a Coefficient of performance of 2.5)

An immersion heater (3,000 watts) turned on for 1 hour at night instead of 1 hour during the day it would use 3kwh (units). Doing that alone would be enough in the average household to make night saver worthwhile.
Of course -this would only be money-saving if you didn’t also have to put the immersion on more often in the day .

How Much Could You Save on NightSaver Meter?

Of Night-Time
Normal Tariff €1098 €1098 €1098 €1098
Nightsaver Tariff €1035 €990 €945 €900
Annual Saving €63 €108 €153 €198
Figures from Summer 2021

Figures are based on average usage of 4200 kwh on Electric Ireland charges. Cheaper Electricity prices may be available from other suppliers

You can compare the night saver prices from all the different Electricity providers at

Getting a Night Saver Meter is free. Just call your electricity supplier to request one and they’ll arrange for ESB Networks to call out to your house and install one.