Installing a home EV charger in South Africa: what the job actually involves

A home charger is a fixed electrical installation supplying several kilowatts continuously for hours at a time. That makes it a different proposition from any appliance you plug in: it is added to your distribution board, it must be protected correctly, and the work has to be certified by someone entitled to issue a certificate of compliance. The charger itself is rarely the difficult part of the job.

What has to be assessed before anything is bought

Four things decide whether an installation is straightforward or expensive, and none of them are properties of the charger. Whether your supply is single-phase or three-phase sets the ceiling on charging speed. Your existing main breaker and notified capacity decide whether a charger can be added at all without an upgrade. The physical run from the distribution board to where the car parks sets the cable cost, which on a long run can exceed the hardware. And the board itself needs space and correct earth leakage protection for a circuit of this type.

• Single-phase or three-phase supply, and the rating of the main breaker
• Spare ways on the distribution board, and its earthing arrangement
• Cable route and distance from the board to the parking bay
• Whether the total household load still holds with the charger at full draw

Certification is not optional

South Africa's Electrical Installation Regulations, made under the Occupational Health and Safety Act, require that a fixed electrical installation be certified by a registered person, and SANS 10142-1 is the wiring code the work is measured against. A certificate of compliance covering the new circuit is the document that matters: it is what an insurer will ask for after a fire, and what a conveyancer will ask for when the property is sold. Ask, before work starts, who the registered person is and whether the certificate will cover the charger circuit specifically.

Why we do not publish an installed price

We hold no sourced pricing for South African charger installations, so we do not print a range. The cost is dominated by the variables above rather than by the hardware, which means a national average would mislead more than it helps: two identical chargers, one three metres from the board and one thirty metres away through a wall, are not the same job. Get itemised quotes that separate hardware, cable and labour, and compare those lines rather than the totals.

What to ask for in a quote

• Hardware, cable and labour priced separately, not as one figure
• The cable run length and route the price assumes
• Whether a distribution board or main breaker upgrade is included or excluded
• Who issues the certificate of compliance, and that it covers the new circuit
• Whether the charger needs its own earth leakage device, and which type

Where to start

Any competent electrical contractor can quote this work. If you are considering solar at the same time, there is a real advantage to using one company for both, because the charger changes the load profile the array and inverter should be sized against. That is covered in the solar guide in this topic.