The honest answer to what it costs to charge an electric car in South Africa is "it depends entirely on where you plug in." Charge at home overnight and it's cheap; lean on public fast-chargers and the cost climbs toward petrol. This guide breaks both down to a single comparable number — cost per 100km — in Rand, using realistic 2026 estimates.
The one number that matters: cost per 100km
Litres, kilowatt-hours and kWh-per-100km all cloud the picture. The only figure that lets you compare an EV to a petrol car — or home charging to public charging — is cost per 100km: what it actually costs to move the car 100 kilometres.
To get there you need two things. First, how much energy the car uses per 100km, measured in kWh. Most mainstream EVs in South Africa use somewhere between 15 and 22 kWh per 100km in real-world mixed driving — call it around 18 kWh/100km for a typical crossover like the BYD Atto 3, a little less for a small hatch, a little more for a heavier SUV or on the highway. Second, what you pay per kWh, which is where home and public charging split dramatically.
Multiply the two and you have your answer. At 18 kWh/100km:
- Home charging at R2.80/kWh → 18 × R2.80 = ~R50 per 100km
- Public DC fast-charging at R8.00/kWh → 18 × R8.00 = ~R144 per 100km
Same car, same road, nearly three times the cost. That gap is the entire story of EV running costs in South Africa, so let's take each side properly.
Charging at home: the cheap way
This is where the electric car earns its reputation, and it's the number every EV advocate quotes. It's genuinely low — but only if you can plug in at home overnight.
What you pay per kWh at home
In 2026, residential electricity in South Africa varies by municipality and by how much you use in a month, but a realistic all-in rate on a domestic tariff lands somewhere around R2.50 to R3.50 per kWh for most households once you're into the higher usage blocks. Metros like the City of Cape Town, City of Johannesburg (City Power) and eThekwini each set their own tariffs, and time-of-use plans can push overnight rates lower, so treat R2.80/kWh as a sensible middle estimate rather than a fixed figure.
The home-charging maths
Take a common setup: a 60 kWh EV that returns about 350 km of real-world range, charged on a home wallbox.
| Item | Estimate |
|---|---|
| Usable battery | ~60 kWh |
| Real-world range | ~350 km |
| Home rate | ~R2.80/kWh |
| Full charge cost | ~R168 |
| Cost per 100km | ~R48 |
So a full "tank" costs under R170, and every 100km costs roughly R48. There's a small efficiency loss — chargers aren't 100% efficient, so you might draw 63–65 kWh from the wall for 60 kWh in the battery — which nudges the real cost up by 5–8%. Even accounting for that, you're comfortably under R55 per 100km home-charged.
If you have solar and charge off surplus daytime generation, the marginal cost drops toward zero for those kilometres. That's the dream scenario, and it's exactly why an EV suits a homeowner with a roof full of panels far more than a flat-dweller — a point we dig into in is an electric car worth it in South Africa.
Charging in public: the expensive way
Now flip the assumption. Public DC fast-charging is convenient, quick and increasingly available on the main routes — but it is priced in a completely different league to home electricity.
What public charging costs per kWh
South Africa's public networks — the ones you'll find at malls, filling stations and on the N-routes — typically charge R6.50 to R9.00 per kWh for DC fast-charging in 2026, with slower AC public chargers sometimes a little cheaper. The operator has to recover the cost of expensive hardware, grid connections and, increasingly, backup power to stay online through load-shedding, so the premium is structural, not a rip-off. But for you, the driver, it means the per-kWh price is often two to three times your home rate.
The public-charging maths
Same 60 kWh EV, same 350 km range, but now charged on a DC fast-charger at R8.00/kWh:
| Item | Home | Public DC |
|---|---|---|
| Rate per kWh | ~R2.80 | ~R8.00 |
| Full charge (~60 kWh) | ~R168 | ~R480 |
| Cost per 100km | ~R48 | ~R137 |
That's the number that surprises people. A car marketed as "cheap to run" costs roughly R137 per 100km when you rely on public fast-charging — nearly triple the home figure, and within touching distance of a fuel-efficient petrol car. The "cheap to run" promise is really a "cheap to run at home" promise. If you live in a complex or flat with no dedicated bay, this is the single most important sum to run before you buy.
Home vs public vs petrol: the head-to-head
Numbers land harder side by side. Here's the same distance costed three ways, all 2026 estimates for a typical mainstream car and driver.
| Scenario | Assumptions | Cost per 100km |
|---|---|---|
| EV, home charging | 18 kWh/100km @ R2.80/kWh | ~R50 |
| EV, public DC fast-charging | 18 kWh/100km @ R8.00/kWh | ~R144 |
| Petrol hatch | 6.5 L/100km @ R23/litre | ~R150 |
| Diesel bakkie | 8.5 L/100km @ R23.50/litre | ~R200 |
Two things jump out. First, home charging is transformative — at roughly a third of petrol's cost per kilometre, that's where the real saving lives. Second, public DC fast-charging is not a big saving over an efficient petrol car; on these figures it's about level. So an EV's fuel advantage isn't automatic — it's almost entirely a function of how much of your charging happens at home.
What that means over a year
Put it into an annual figure at 18,000 km a year:
- Home-charged EV: ~R9,000 a year in electricity
- Public-charged EV: ~R26,000 a year
- Petrol hatch: ~R27,000 a year
Home charging saves roughly R18,000 a year over petrol. Public charging saves almost nothing. Most real owners land in between — say 80% home, 20% public — which still keeps the EV comfortably cheaper, but the exact mix is yours to be honest about.
The hidden variables that move your number
The tables above are clean estimates. Your real cost will drift for a few reasons worth knowing before you bank on any figure.
Your driving. Highway cruising at 120 km/h uses noticeably more energy than town driving — the opposite of a petrol car — so a car that does 16 kWh/100km around Sandton might do 21 kWh/100km on the N1 to Bloemfontein. Consumption climbs with speed, aircon, hills and a full load.
Your tariff block. Municipal electricity is often stepped: the more you use in a month, the higher the rate on those units. Adding an EV can push a heavy household into a pricier block, so the marginal cost of charging can be a bit above your average rate. Time-of-use tariffs, where they're available, work the other way if you charge overnight.
Battery size and efficiency. A 40 kWh city car costs less to fill than an 80 kWh SUV, but range and cost per 100km track efficiency, not battery size. A small, light EV can genuinely sit near R40 per 100km at home; a big, heavy one closer to R60.
Charging losses and cold. You pay for the energy drawn from the wall, not just what lands in the battery, and both fast-charging and cold weather add a little overhead.
None of these changes the headline: home cheap, public expensive. But they're why your bill won't match a brochure to the rand.
How charging cost fits the bigger ownership picture
Charging is only one line in the cost of running a car, and on its own it can be misleading. The two costs that usually dwarf it are depreciation and finance — and an EV's steeper depreciation curve in 2026 can quietly swallow the fuel saving.
Here's the trap in plain terms. A home-charged EV might save you R18,000 a year over petrol — roughly R90,000 over five years. But many EVs currently retain only 45% to 55% of value after three years, against 60% to 70% for resale champions like the Toyota Corolla Cross or Toyota Hilux. On similarly priced cars, that depreciation gap can be R70,000 to R120,000 — enough to cancel the fuel win if you trade early. The full running-cost comparison sits in total cost of car ownership in South Africa.
The only way to know whether your fuel saving is real profit or just money moving between columns is to model both sides. Put your specific car's price, deposit, rate and term into our equity calculator: it projects what the car is likely to be worth against what you'll still owe, so you can see whether you'll be above water at trade-in — or slipping toward negative equity, where the loan outruns the car's value. For how that projection is built, what will my car be worth in 3 years walks through the method, and chinese cars' resale value in South Africa explains why many newer EV brands carry a resale discount today.
Cutting your charging bill — and your finance bill
You control your charging cost more than your fuel cost, and a few habits genuinely move the needle over a year.
Charge at home wherever possible. This is 90% of the game. Every kilometre shifted from public to home charging saves you roughly R90 per 100km. Prioritise a dedicated bay and a wallbox before you buy the car, not after.
Use public DC only when you need range, not routine. Treat fast-chargers like petrol on a road trip, not like your daily fill-up. AC public chargers, where available, are often cheaper if you can leave the car for longer.
Consider solar and time-of-use tariffs. If you already have solar, daytime charging can approach free. If your municipality offers a time-of-use plan, overnight rates can undercut the flat tariff meaningfully.
Don't let the finance undo the fuel saving. The cheapest kilometres in the world don't help if the loan is bleeding you. On a faster-depreciating EV, be wary of a large balloon payment — you can end up owing a lump sum on a car worth less than the debt. Read balloon payments explained and is a balloon payment worth it before agreeing to one. The smarter move is a solid deposit plus extra payments to build equity ahead of the depreciation curve; our extra-payment calculator shows how many months and how much total interest you'd save, and extra payments on a car loan in South Africa covers the strategy.
And shop the finance itself. WesBank, Absa, Standard Bank and MFC all compete for vehicle finance, and the dealership's in-house quote isn't automatically the cheapest — every registered credit provider must still work within the National Credit Act (NCA) and protect your data under POPIA. Bank vs dealership car finance in South Africa covers how to negotiate. If you'd rather compare full cars by what they'll be worth down the line, browse cars by projected future value.
The bottom line
The cost to charge an electric car in South Africa isn't one number — it's two, and the gap between them decides whether an EV is a bargain or a break-even. Charge at home on a 2026 tariff around R2.80/kWh and a mainstream EV costs roughly R48 to R55 per 100km, about a third of petrol — a saving near R18,000 a year at 18,000 km. Rely on public DC fast-charging at R6.50 to R9.00/kWh and that climbs to roughly R130 to R160 per 100km, barely cheaper than a fuel-efficient petrol car. Everything hinges on where you plug in: an EV rewards the homeowner with off-street parking and punishes the flat-dweller forced onto public chargers.
These are estimates, not promises — your tariff block, driving style and charging mix will shift the figure, and none of it counts unless the depreciation and finance side stacks up too. Before you assume the fuel saving is pure profit, model your actual price, deposit, rate and term in the equity calculator and the extra-payment calculator. Do the maths first, and you'll know whether the cheap kilometres are real money in your pocket or just a headline.