Rustenburg and Emfuleni (Vanderbijlpark, Vereeniging) electricity tariffs 2026/27: what solar saves

Answer first: In Rustenburg and in Emfuleni (Vanderbijlpark, Vereeniging, Sebokeng) your bill has two parts that behave differently. The fixed basic charge — R455 to R719 a month excl. VAT — stays whatever you do. The energy part climbs through four blocks, and the top block costs nearly double the first. Solar earns its money by deleting the top blocks, so the bigger your bill, the faster the payback. Related: fixed charges with solar · read your municipal bill · metro tariffs desk.

Rustenburg 2026/27: what NERSA approved

Rustenburg implemented 11.9% in 2025/26, applied for 12% for 2026/27, revised that to 10%, and NERSA’s Regulator Executive Committee approved 9.01% on 9 May 2026, effective 1 July 2026 (NERSA Decision and Reasons for Decision, Rustenburg Local Municipality FY2026/27). Domestic customers buy 48% of Rustenburg’s electricity and commercial customers 30%. NERSA also recorded energy losses of 29.43% in 2024/25, up from 12.58% the year before, and ordered a quarterly loss-reduction plan. Those losses are the reason the City keeps asking for double-digit increases; your solar system is a hedge against them.

Rustenburg’s lifeline residential scale (registered indigent homes, with 50 kWh of Free Basic Electricity a month) runs 203.11 c to 407.60 c/kWh with no basic charge in NERSA’s table.

Emfuleni 2026/27: what NERSA approved

Emfuleni implemented 11.30% in 2025/26 and applied for 9.01% for 2026/27, which NERSA approved from 1 July 2026 (NERSA Decision and Reasons for Decision, Emfuleni Local Municipality FY2026/27). Manufacturing buys 73% of Emfuleni’s electricity; the municipality has 64 756 prepaid and 8 080 credit-metered domestic customers. NERSA recorded energy losses of 24.99% in 2024/25. Emfuleni’s domestic tariff is seasonal: winter (June–August) block rates are about 26% higher than summer (September–May).

NERSA’s Emfuleni table carries a separate line for low (FBE) inclining-block customers with a solar installation: a R455.86 monthly basic charge, the same as the standard single-phase basic. If you are on the low tariff today, plan your payback on the assumption that installing solar puts the full fixed fee on your account.

The same household on each tariff

Calculated from the NERSA block tables above with 15% VAT added. The fixed charge is a large share of a small bill: at 500 kWh, Rustenburg town credit customers pay R762 of R2 352 before any energy. That is why solar pays best for the bigger users, and why a home that already sits around 300 kWh a month should spend first on a geyser timer or heat pump rather than panels.

What a 5 kW hybrid saves here

Both towns have a strong Highveld and Bushveld resource. PVGIS models a 25° north-facing array at about 1 723 kWh per kWp a year in Rustenburg and 1 742 in Vanderbijlpark, from roughly 128 kWh per kWp in April to 160 in September (EU JRC PVGIS v5.2 (1 kWp, 25° north-facing, 14% system loss; run 27 Oct 2026)). Ten 550 W panels (5.5 kWp) on a 5 kW hybrid inverter make about 790–800 kWh in an average month.

Assume the household uses 500 kWh of that directly or through the battery, dropping grid use from 800 to 300 kWh a month. The units that disappear are the top-block ones:

R100 000 sits inside the published 2026 range of about R72 000 to R120 000 for a 5 kW hybrid with a 5–10 kWh lithium battery — 5 kW system cost. The payback sums use today’s tariffs. Both municipalities have raised tariffs by 9–12% a year for three years running, and every future increase shortens the payback — how price increases change payback.

Winter is where Emfuleni solar earns most

Emfuleni’s winter block 4 costs 515.07 c/kWh excl. VAT, 26% above summer. Highveld panels produce about as much in July as in March because winter skies are clear. A battery that carries solar into the 17:00–22:00 evening, when the geyser, kettle and heater run, captures the expensive winter units — winter solar production · what size battery.

Battery choice for a Rustenburg or Emfuleni home

If you are too busy to read the full sizing answer — get a 16 kWh battery that can be expanded later. A 48 V DC lithium iron phosphate pack is the oldest, most proven architecture for home hybrids, and the 16 kWh band gives the best rand per usable kWh — 16 kWh battery cost. Solar MD is the pack we put first for longevity: built in Cape Town, warranted in years and MWh, and installers report the batteries outliving their warranty. Pair it with an open inverter you can monitor locally, such as a Victron GX-controlled system.

Paperwork both municipalities need

Both towns require a grid-tied or hybrid system to be registered as small-scale embedded generation (SSEG) before it connects, with an NRS 097-2-1 approved inverter and an electrical Certificate of Compliance — do I need SSEG registration · SSEG application steps · NRS-approved inverters. Set the inverter to zero export unless the municipality has issued you a bi-directional meter and an export agreement in writing — zero export.

Sources: NERSA Decision and Reasons for Decision, Rustenburg Local Municipality FY2026/27; NERSA Decision and Reasons for Decision, Emfuleni Local Municipality FY2026/27; EU JRC PVGIS v5.2 (1 kWp, 25° north-facing, 14% system loss; run 27 Oct 2026). Tariffs are NERSA-approved figures excl. VAT unless marked; bill and saving examples add 15% VAT.

Quick questions

How much did Rustenburg electricity go up in 2026/27?

Rustenburg applied for 12%, revised to 10%, and NERSA approved 9.01% across residential scales from 1 July 2026. Town prepaid block 4 (above 600 kWh) is now 404.73 c/kWh and the town prepaid basic charge R487.12 a month, both excl. VAT.

Does Rustenburg charge a basic fee on prepaid?

Yes. NERSA’s 2026/27 decision lists a R487.12 a month basic charge on Residential Prepaid (Town) and R718.95 on Rural Prepaid, excl. VAT. Prepaid in Rustenburg does not escape the fixed charge, so solar savings come only from the energy blocks.

What are Emfuleni’s electricity rates for 2026/27?

Emfuleni domestic single-phase energy runs from 217.81 c to 409.61 c/kWh in summer (September–May) and 284.81 c to 515.07 c/kWh in winter (June–August), excl. VAT, plus a R455.86 single-phase or R1 025.53 three-phase monthly basic charge.

Does Emfuleni charge extra if I install solar?

NERSA’s 2026/27 decision lists a basic charge of R455.86 a month for Emfuleni’s low (FBE) inclining-block customers who have a solar installation — the same figure as the standard single-phase basic. Budget for that fixed fee in your payback sum; it stays on the bill however much solar you add.

Is solar worth it in Rustenburg or Vanderbijlpark?

Yes. Both sit on the Highveld with PVGIS yields of about 1 723 and 1 742 kWh per kWp a year, and both charge 404–515 c/kWh excl. VAT for top-block energy. Moving a household from 800 to 300 kWh of grid energy a month saves R2 040–R2 200 incl. VAT, so a R100 000 hybrid pays back in about four years.