How Much Does A Home Charger Cost for an Electric Car?

Electric Cars are gradually becoming more popular in Ireland as prices come down and efficiency and travel range increase.
See some more information about Electric Cars in Ireland

Eventually – all new cars will be electric.
To get the best value out of an electric car you need to be able to charge at home – and this will require the installation of an Electric Vehicle (EV) Charger.

But – just how much does it cost to buy and install a home charger for an electric car?

There is currently a grant available towards to cost of an EV charger which is €600.

  • Any private home owner is now eligible to apply for this grant. (Prior to July 21st 2022 you had to own an EV)
  • From September 2022 the EV Home Charger Grant Scheme will only cover smart chargers registered with the SEAI

Full details of the charger grant and how to apply can be found here.

Prices of Home EV Chargers

Electric Ireland is offering one “from” €1099 installed – so that will be €499 after the grant. This is for a 7kW EV Home Charger .

We have seen other retailers offering EV Home Chargers at prices starting in the region of €1000 (installed) . So that would mean an outlay of at least €400 after getting the grant.
The location of the charger will affect the installation cost.

What Power does a Home Charger Need?

The typical domestic connection available in Ireland from ESB Networks is “12kVA” – this is roughly equivalent to 12Kwh

For a Standard Connection it is important to ensure that the live and neutral wire (meter tails) connecting your fuse board to your outdoor ESB meter box are at least 16mm square in cross sectional area in order to manage the heat in the cable. If a house was built before the year 2000 and has not had major wiring work done, the meter tails will probably be undersized and this issue will need to be addressed before you install an EV charger

A home EV charging point is usually installed on an external wall of a house and uses your domestic electricity supply. Typically, home chargers are available in 16 amp and 32 amp connection sizes resulting in 3.7kW and 7.4kW maximum charger sizes respectively.

For comparison – an electric shower will usually use 8 to 10Kwh.

Note that your car could be capable of 7.4kW power but your Home Charger may only be sized to supply 3.7kW or less power to the charger. In this case, the car should automatically adjust to the lower power supply. So it is important to establish what the on-board car charger is capable of firstly.

If you were to run a 7kW EV Home Charger at the same time as a power shower- you would exceed the maximum ability of a house to supply on a Standard Domestic Connection of 12kVA.
In this case it is recommended to install an EV Charger with a Demand Management system fitted. This comprises a monitoring clamp fitted around the main power line to the home with a communication link back to the EV Charger. When the load on the house goes high, the unit will instantly reduce the charge on the EV or shut it off completely and then restart when there is capacity available on the power line for it to run without tripping the fuse in your home.

More info here if you want to know How Much Does it Cost to Charge an Electric Car at Home ?

Most (if not all) electricity suppliers offer lower electricity rates for night time usage of electricity. This cheaper night rate is not automatic – you need to apply for it and get a special night/day meter.
Be aware that the price of electricity on the day/night meter during the day will be higher than the normal unit rate .
But if you are charging a car 3 or 4 times a week it could be worth it.

An electric car charge consumption is around 15kWh for every 100 kilometres.
See some figures here comparing Electric car running cost with Petrol cars.

More here about Pricing of Public Car Chargers in Ireland

Where to Get Cheaper Electricity

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