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Free tools · From NERSA’s 2026/27 decision · Mpumalanga

How many units for R100 in Thaba Chweu?

R100 buys 82.9 kWh of prepaid electricity in Thaba Chweu at the start of the month, VAT included, on Thaba Chweu’s prepaid tariff for homes, Residential houses and flats (all towns), conventional and prepaid, above 20 A, single or three phase. It also has a fixed charge of R1,053.83 a month, which your purchases pay first. Units cost more as the month goes on: once you’ve bought 350 kWh, R100 buys 31.2 kWh.

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What R50 to R1,000 buys in Thaba Chweu

Residential houses and flats (all towns), conventional and prepaid, above 20 A, single or three phase82.9 kWhfor R100 at the start of the month, plus a fixed R1,053.83 a month

Units (kWh) for each amount, VAT included. Start of month: your first units of the month, with the fixed charge paid. First buy: the month’s first purchase, if it pays the whole fixed charge before any units. After 350 kWh: once you’ve bought 350 kWh this month.

You payStart of monthFirst buyAfter 350 kWh
R5066.50.015.6
R10082.90.031.2
R200115.80.062.3
R300148.80.093.5
R500214.60.0155.9
R1,000377.70.0306.2
Units this monthPrice a unitR100 buys
First 50 kWhFree
50 to 350 kWhR3.0432.9 kWh
350 to 600 kWhR3.2131.2 kWh
Above 600 kWhR3.5228.4 kWh

It has fixed charges (basic charge R238.97 a month, capacity charge R11.29 an amp per phase a month, before VAT) that come to R1,053.83 for November, with VAT, on a 60 A single-phase supply. You pay it whatever you use, and your prepaid purchases pay it first. The decision doesn’t say whether its tariffs include VAT; 15% added, as municipal tariffs are usually quoted without it. Source: NERSA decision, page 19.

Why the same R100 buys less later in the month

On this tariff, Thaba Chweu sells electricity in blocks that start again on the first of every month. The first 50 kWh each month cost R0.00 a unit, VAT included, and the price goes up in steps after that, to R3.52 a unit above 600 kWh.

So R100 buys 82.9 kWh at the start of the month, but only 31.2 kWh once you’ve bought 350 kWh that month. Splitting your purchases doesn’t change this: the blocks count every unit you buy in the month, however you buy them.

The fixed charge

Thaba Chweu charges R1,053.83 a month on this tariff, VAT included, whatever you use, and your prepaid purchases pay it first. If the whole month’s charge comes off your first purchase, your first R100 of the month buys no units at all, and R953.83 of the charge is still owed from your next purchase. Municipalities collect it in different ways, some a little with every purchase. Your till slip shows what was taken.

Other household tariffs

TariffR100 buysFixed a month
Residential, 20 A single phase prepaidFor a 20 A single-phase supply41.9 kWhR139.54
Residential indigent, all towns (20 A single phase prepaid)For households that qualify41.9 kWhR139.54

Units for R100 at the start of the month, VAT included, with the month’s fixed charge paid. The municipality decides who qualifies.

Elsewhere in Mpumalanga

Units for R100 at the start of the month, VAT included.

Source: NERSA decision, page 19, Thaba Chweu’s tariffs for 2026/27, from 1 July 2026. Worked out for November 2026. In parts of most municipalities, Eskom supplies homes directly.

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