Polokwane and Mbombela electricity tariffs 2026/27: solar payback under four years

Answer first: In Polokwane and Mbombela, residential electricity above 600 kWh a month now costs more than in Johannesburg or Cape Town — about 524 c/kWh incl. VAT in Polokwane and 521 c in Mbombela, against 436.59 c on City Power Prepaid High and 469.06 c on Cape Town’s Home User top block. Combine that with Limpopo and Lowveld sunshine and the solar payback is one of the shortest in the country. Related: Tshwane 2026/27 tariffs · how increases change payback · metro tariffs desk.

Polokwane: what NERSA approved

NERSA’s Regulator Executive Committee considered Polokwane Local Municipality’s application on 30 April 2026 and approved the tariffs as proposed, effective 1 July 2026 (NERSA Reasons for Decision, Polokwane tariffs FY2026/27). The first two blocks rose 9.01% and the top two 10.01%, which NERSA describes as continued partial subsidisation of smaller domestic users.

Small commercial customers in Polokwane pay 399.50 c/kWh excl. VAT plus R1 073.03 a month (single-phase) after a 10.01% increase — see solar for medical, dental and vet practices for a business worked example.

Mbombela: what NERSA approved

For the City of Mbombela (Nelspruit, White River and the former Umjindi area), NERSA approved a uniform 10.3% increase on all residential blocks, effective 1 July 2026, after a 12.72% increase in 2025/26 (NERSA Reasons for Decision, City of Mbombela tariffs FY2026/27). Mbombela’s blocks are narrower at the bottom: block 2 ends at 100 kWh, so most of a family’s consumption lands in block 3.

NERSA’s table prints no monthly basic charge on the residential block tariff. Registered indigent households in Mbombela receive 50 kWh of free basic electricity a month.

The same 800 kWh month in both cities

Over a year that is R3 600–R4 000 more for the same household, before next July’s increase.

What a 5 kW hybrid saves

PVGIS models a north-facing 25° array producing about 1 715 kWh per kWp a year in Polokwane and 1 524 kWh in Mbombela (EU JRC PVGIS v5.2 (1 kWp, 25° north-facing, 14% system loss; run 27 Oct 2026)). Polokwane’s best months are August to October at 154–160 kWh per kWp; Mbombela’s summer rain keeps December–January near 119–123. A 5.5 kWp array makes about 786 kWh a month in Polokwane and 699 kWh in Mbombela.

Solar removes the most expensive kWh first. If the household self-consumes 450 kWh a month (directly and through a battery), it drops from 800 to 350 kWh of grid energy:

The R100 000 installed price sits inside SolarZA’s national 2026 band of R80 000–R120 000 for a 5 kW hybrid with ten 550 W panels and a 5–10 kWh lithium battery (SolarZA price guide (updated Jan 2026)). No export credit is counted, because neither NERSA decision prints a residential feed-in rate. At 2025/26 rates the same 450 kWh was worth about R1 966 (Polokwane) and R1 973 (Mbombela), so this year’s increases added about R200 a month to every solar home’s saving.

Design for self-use, not export

• Battery first. Without an export credit, surplus midday energy is lost unless it is stored. If you are too busy to read the sizing guide — get a 16 kWh battery that can be expanded later — 16 kWh battery cost 2026.
• Move loads into the day. Geyser timers, pool pumps and laundry in solar hours lift self-use from 60% to 80% — smart geyser timer · pool timer.
• Set the inverter to zero export or an approved limit until you have written SSEG approval — zero-export settings.
• Plan for heat. Lowveld and Limpopo summer heat shortens battery life in hot garages and sun-facing outdoor cabinets. Mount packs indoors or in shade with airflow — battery heat.

Prepaid is the norm — size from token history

Prepaid meters dominate domestic supply in both municipalities, and the block tariffs apply to prepaid and conventional alike. Pull six to twelve months of token purchases, divide rand by kWh to see which block you are buying in, and size solar to remove the block 3 and block 4 energy. A home buying 350 kWh a month or less already sits in the cheap blocks and gains less from a large array — prepaid token cost vs solar · read your bill.

Ask installers to quote an open, locally supported stack: a 48 V DC battery and a hybrid that commissions and runs without a vendor cloud. 48 V DC is the oldest, most proven home hybrid architecture and keeps parts available in regional towns — open vs closed hybrid stacks · choose an installer.

Related: Rustenburg and Emfuleni tariffs 2026/27.

Quick questions

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

NERSA approved 9.01% on the first two domestic blocks and 10.01% on the top two from 1 July 2026. Block 4 (above 600 kWh) moved from 414.42 c to 455.90 c/kWh excl. VAT and the single-phase basic charge from R186.76 to R205.45 a month.

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

NERSA approved a uniform 10.3% on all four residential blocks. Block 3 (101–600 kWh) is 394.45 c/kWh and Block 4 (above 600 kWh) 453.33 c/kWh excl. VAT, up from 357.62 c and 411.00 c.

Is solar worth it in Polokwane?

Yes. Polokwane is one of the sunniest cities in South Africa: PVGIS models about 1 715 kWh per kWp a year. A 5.5 kWp hybrid that offsets 450 kWh of block 3 and block 4 energy saves about R2 163 a month incl. VAT, paying back a R100 000 system in under four years.

Do I need to export solar to make it pay in Limpopo or Mpumalanga?

No. NERSA’s 2026/27 decisions for Polokwane and Mbombela do not print a residential export credit, so design for self-use: battery-backed evening loads and a zero-export or export-limited inverter setting until the municipality approves an SSEG connection with a credit.