Can I charge an EV on a prepaid electricity meter in South Africa?

Yes for consuming grid energy, but prepaid + solar export is metro-specific. City Power requires residential SSEG exporters to leave prepaid for a TOU conventional tariff. Always confirm metering before you commission a hybrid that can reverse power.

Is time-of-use better for home EV charging?

Where your distributor offers cheap off-peak TOU windows, overnight EV charging can undercut daytime retail blocks — but daytime solar surplus still beats buying any grid kWh. Combine surplus PV when home, TOU off-peak when not.

What are 2026/27 metro solar export credits if I also charge an EV?

Approx. incl. VAT: Cape Town ~152.93 c/kWh, City Power Johannesburg 143.29 c, eThekwini ~184.60 c, Tshwane ~108.25 c. All are far below retail import, so prefer EV daytime self-use over exporting then re-importing at night.

Money & tariffs

How do TOU and prepaid meters change EV charging (and solar export) in South Africa?

Meter class decides whether overnight charging is cheap, whether your hybrid can export, and whether City Power will make you leave prepaid. Self-use into the wallbox still beats thin feed-in credits.

Updated 26 October 2026 · Tariffs quoted are the 2026/27 municipal year (from 1 July 2026) unless stated.

Answer first: Your meter type decides whether solar export and overnight EV charging are cheap, awkward or blocked. Self-use of PV into the wallbox still beats exporting at thin credits then buying grid later. Where you have true TOU off-peak, use it for night fills; where you are prepaid, budget for possible meter/tariff migration before hybrid export — especially under City Power.

Three meter stories that change EV maths

Setup	EV charging tip	Solar export tip
Inclining-block / flat prepaid	Every grid kWh into the car costs the block you are in — high users pay the expensive steps	Many metros will not leave a dumb prepaid token meter on an exporting hybrid; ask before install
TOU conventional (postpaid)	Schedule the wallbox for off-peak; still prefer daytime PV when home	Often the path metros want for bidirectional SSEG meters
SSEG / net-billing tariff	Treat export credit as Plan B; Plan A is car + geyser on surplus	Use published c/kWh credits below — never invent

2026/27 export credits (primary-sourced) — why EV self-use wins

Full citations live on solar feed-in tariffs. Incl. ~15% VAT:

Cape Town Home User SSEG — ~152.93 c/kWh incl. (107.98 feed-in + 25.00 incentive excl., then VAT)
City Power (Johannesburg) residential embedded gen — 124.60 c excl. / ~143.29 c incl.; prepaid SSEG must migrate to TOU conventional; net-consumer; ≤1 MW; bi-directional meter
City of Tshwane credit reverse — 94.13 c excl. / ~108.25 c incl. plus Domestic SSEG fixed ~R372.60/mo incl.; City FAQ may still show old 11.99 c — trust the NERSA RfD / your statement
eThekwini residential net-billing — 160.52 c excl. / ~184.60 c incl.; network access ~R88.35/kVA/mo incl. of inverter; credits reduce the account (not cash)

Retail import is commonly ~R3.30–R4.70/kWh energy. Pushing PV into a Type 2 wallbox avoids the full retail rate; exporting then re-importing overnight destroys the spread.

City Power prepaid → TOU (Joburg edge case)

If you want registered export on City Power, plan the tariff migration into the project: residential exporters must sit on a time-of-use conventional tariff (ITEM-76 / Annexure A1 conditions). That changes fixed/service charges and how you schedule the EV. Do not assume your existing prepaid token meter will accept reverse power. Related: prepaid + solar.

Cape Town, Tshwane, eThekwini — EV scheduling notes

Cape Town: Strong case for daytime solar charging; feed-in incentive helps leftovers but still below retail. AMI / Home User rules apply — verify on the City schedule linked from the feed-in page.
Tshwane: Model the Domestic SSEG fixed line every month before you celebrate export cents. Confirm the live credit on your bidirectional statement (FAQ lag warning above).
eThekwini: Oversize the inverter and you pay network access every month on kVA whether the EV needs it or not. Size continuous power for house + heat pump + wallbox carefully.

Practical wallbox settings

Solar-surplus or “eco” mode when you work from home.
TOU off-peak schedule when the car sits overnight and PV is gone.
Hard amperage cap shared with geyser/oven — load management.
Never park the EV on a small essential-loads battery bus.

Hardware starting point with local support: SAEV Charge — locally stocked option among peers we compare; Richmond public DC evidence ~R3.49/kWh vs GridCars ~R7.35 (DriveElectric).

Schedule the car to the tariff, not the other way round

Time-of-use and prepaid top-ups punish careless overnight charging on the wrong block. Before you buy a wallbox, screenshot your tariff name, peak windows and whether you are prepaid or conventional. Then set the charger app (or a simple timer) so the bulk of kWh lands in off-peak or in solar hours when the car is home.

On City Power’s residential exporter path, prepaid customers who want to export solar generally need a plan to move onto a conventional TOU meter — do not discover that after the SSEG form is in. Cape Town Home User / SSEG, Tshwane Domestic SSEG (export ~108.25 c/kWh incl. plus ~R373/mo fixed) and eThekwini (~184.60 c export incl. plus network access) each need their own spreadsheet; copy-paste between metros breaks the maths.

Worked overnight vs midday (illustrative)

50 kWh into the car each week ≈ 200 kWh/month. At ~R4.00/kWh peak retail that is ~R800. At ~R2.50–R3.00 off-peak (where your TOU offers it) the same energy might land nearer R500–R600. If midday PV covers half of those kWh, you avoid retail entirely on that half and only “pay” the opportunity cost of not exporting at ~R1.08–R1.85/kWh — still a win versus buying peak power. Full export table: feed-in.

Prepaid practicalities

Keep a top-up buffer; a long charge session should not zero the meter mid-evening.
Some prepaid STS meters and EV loads interact badly with aggressive load-limiting — test a short session before the first road trip night.
If you add solar later, ask upfront whether your prepaid meter type can stay or must migrate.

Wallbox settings that match SA homes

Prefer a charger with scheduling, a solar-surplus mode (CT or inverter integration) and a hard amperage cap so you can drop to 10–16 A when the DB is busy. Pair with load management so Stage evenings do not fight the kettle and geyser. Public DC remains for trips — networks.

Sources

City of Cape Town 2026/27 Budget Annexure 6
City Power Annexure A1 Embedded Generator Tariff 2026/27
NERSA RfDs: City Power, City of Tshwane (SSEG 17.14), eThekwini Residential Net-Billing — linked from the feed-in answer
DriveElectric / MyBroadband — SAEV Richmond tariffs, Oct 2026

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