Is solar worth it in Mangaung (Bloemfontein) under Centlec's 2026/27 tariffs?

The 2026/27 Mangaung numbers in one table

Centlec (SOC) Ltd distributes electricity for Mangaung Metro — Bloemfontein, Botshabelo and Thaba Nchu. Its NERSA-approved schedule for 1 July 2026 to 30 June 2027 is the document that decides what a solar kWh is worth to you. The figures below are copied from that schedule as published; it does not state VAT on the face of each line, so check whether your statement adds 15% before you build a spreadsheet on them.

Two things jump out. First, winter block-2 energy at R4.56 a kWh is among the more expensive residential units in the country, so every kWh your panels push into your own kettle, geyser or pool pump in June is worth a lot. Second, a standard-time exported kWh earns roughly 64–69 cents — around a fifth of what the same kWh saves you if you use it yourself. That gap is the whole design brief for a Bloemfontein system.

Why self-use beats export in Bloemfontein

Solar produces most strongly between about 09:00 and 15:00, which falls mostly in Eskom-style standard time. So the realistic export rate for most Mangaung homes is the standard line — R0.64 in summer, R0.69 in winter — not the headline winter peak credit of R2.76, which only applies to the few evening peak hours when panels produce little. Exported surplus at midday therefore earns very little, while the R110 monthly SSEG basic charge is fixed.

Run the arithmetic for a house that exports 250 kWh a month at standard time: 250 × R0.6442 ≈ R161 in summer and 250 × R0.6902 ≈ R173 in winter. Take off the R110 SSEG basic charge and the net export benefit is roughly R50–R65 a month. That is before the bi-directional meter, which the customer pays for in full under Centlec's policy. Centlec's 2025/26 service-charge schedule listed an SSEG single-phase time-of-use meter at R8 560 excl. VAT and projected R9 107.84 for 2026/27 — confirm the current Annexure B before you sign. On those numbers a meter funded purely by export credits takes well over a decade to pay back.

The conclusion is not "never register". Grid-tied systems must be registered regardless of whether they export (see below). It is that the money in Mangaung comes from shifting your own load into solar hours and sizing so that little is wasted, rather than from chasing feed-in credits.

Worked savings sketch: 5 kW in Bloemfontein

Worked yield: Bloemfontein has strong irradiance; a well-oriented north-facing array commonly yields in the region of 1 600–1 700 kWh per installed kWp per year, so a 5 kWp array makes roughly 690 kWh a month on average (less in June, more in December).

• Household uses 700 kWh a month on the domestic IBT tariff.
• With a hybrid inverter, a 10 kWh battery and some timer discipline (geyser, pool pump, dishwasher in daylight), assume 410 kWh a month of solar is used in the home.
• Because the IBT charges the most for units above 350 kWh, the first solar kWh you save come off the expensive top block.

Winter month: 350 kWh × R4.5609 + 60 kWh × R3.7586 ≈ R1 822 saved.
Summer month: 350 kWh × R3.5058 + 60 kWh × R3.0442 ≈ R1 410 saved.

If winter rates apply for three months (Centlec labels seasons summer and winter; confirm the months on your bill), that is about 3 × R1 822 + 9 × R1 410 ≈ R18 150 a year on self-use alone, before VAT effects and before the annual July increase. At a system price of around R110 000 that is a simple payback near six years; compare real quotes against our 5 kW cost guide and payback method.

Notice what the sketch does not rely on: export. If the household dropped to 400 kWh a month, savings would fall faster than the kWh, because the top block disappears. Smaller, lower-use homes in Mangaung should size down, not up.

What Centlec's 2026/27 SSEG policy actually requires

Centlec's Small Scale Embedded Generation Policy for 2026/27 applies to generation below 100 MVA and sets out what you must hand over. In plain terms:

• A completed Connection of Embedded Generation application form — mode of operation, export capacity, protection, single-line diagram and expected output.
• A Certificate of Compliance under the Electrical Installation Regulations, plus commissioning confirmation and type-test sheets for the inverter's protection (NRS 097-2-1 listed equipment — see our NRS inverter guide).
• A declaration by an ECSA-registered professional (technologist or engineer) for the embedded generation installation. Budget for this; it is a line many quotes leave out.
• Register data NERSA requires every municipality to keep: technology, capacity, GPS location, battery storage capacity, and your account details.

On metering, the policy says all SSEG installations are measured on bi-directional (four-quadrant) meters compliant with NRS 057-4, that existing credit meters will be replaced with bi-directional AMR credit meters, and that the customer pays the full cost — hardware, installation, programming and any upgrades. Net billing applies monthly: exported energy is credited against imported energy charges on credit meters. The policy also mentions month-end export credits for prepayment customers, while saying bi-directional prepayment meters are still "to be considered in the future". If you are on prepaid, ask Centlec in writing which meter you will get before you design for export.

Do you have to register if you never export?

Yes, if the system is connected to the grid. NERSA clarified in 2026 that the registration duty depends on whether the installation has a point of connection to the grid and on its installed capacity — not on whether energy is exported. Systems of 100 kW or less register with the distributor (Centlec in Mangaung); larger ones register with NERSA. A truly off-grid system with no grid connection is exempt. A hybrid inverter that takes grid input counts as connected. Our SSEG registration explainer walks through the logic, and zero-export settings explain why "no export" still needs paperwork.

Domestic IBT or Homeflex in Mangaung?

Centlec publishes a Homeflex-style time-of-use tariff with a single-phase basic charge of R325.32 a month — about R275 more than the domestic IBT basic of R50. Winter peak on that tariff is R7.78 a kWh. For most solar homes without a big battery, the IBT is simpler and the lower fixed charge wins. A household with a large battery that can cover the full evening peak and charge from off-peak may model Homeflex differently, but the R275 monthly gap is R3 300 a year that the battery has to beat before any saving appears. Compare honestly with our time-of-use arbitrage sketch; in Mangaung, arbitrage alone rarely clears that hurdle.

Sizing rules that fit Centlec's numbers

1. Size to daytime use plus battery charging, not to roof area. Midday surplus is worth about 64–69 cents.
2. Move heat loads into sun hours. A 150-litre geyser on a timer and a pool pump between 10:00 and 15:00 can absorb most surplus — geyser timer guide, pool pump guide.
3. Battery size for the evening, which is where winter rates bite. Ten kWh usable covers a typical 17:00–22:00 window for an efficient house — see usable kWh.
4. Set export limits deliberately and keep the setting screenshot in your handover pack — export-limit settings.
5. Plan for the July increase. NERSA approved a 9.01% average increase on Eskom's bulk supply to municipalities from 1 July 2026; Centlec's own 2026/27 sales tariff structure was filed at 9.9%. Rising tariffs make self-used solar more valuable each year.

Equipment and installer notes for the Free State

Free State summers are hot and winters are cold, with dusty dry spells. Ask installers how they handle inverter derating in a ventilated garage, panel soiling between rains (dust and yield) and cold-morning string voltage (cold Voc). On batteries, lithium iron phosphate is the norm. Buyers comparing brands typically weigh Solar MD (Cape Town-made, with packs in the field that have outlived their warranty terms and a habit of staying compatible with older units), Freedom Won, BYD, Blue Nova, Dyness and Pylontech; our battery guide lists warranties and trade-offs side by side.

Good Bloemfontein installers buy through established wholesale channels — ACDC Dynamics, Voltex, ARB Electrical, Herholdts, SONAH Group and others — and can show you the invoice line for every major component. Ask for serial numbers before final payment and check them against the quote line items.

Common Mangaung mistakes we see in quotes

• A payback table that values exported kWh at the retail rate. In Mangaung that overstates export value roughly five-fold.
• No line for the ECSA-registered professional sign-off Centlec's policy asks for.
• No allowance for the bi-directional meter the customer must pay for.
• An oversized array "because the roof fits it" with no plan for midday surplus.
• Winter-only savings figures presented as twelve-month savings.

Quick questions

What does Centlec pay for exported solar in 2026/27?

Centlec's 2026/27 SSEG schedule credits exports at R0.6442/kWh standard and R0.4602 off-peak in summer, R0.6902 standard and R0.4601 off-peak in winter, with peak credits of R1.1476 (summer) and R2.7607 (winter). A R110 monthly SSEG basic charge applies. Confirm VAT treatment on your bill.

Do I pay for the bi-directional meter in Mangaung?

Yes. Centlec's 2026/27 SSEG policy says the customer pays the full cost of metering equipment, installation, programming and commissioning. Its 2025/26 schedule listed an SSEG single-phase TOU meter at R8 560 excl. VAT.

Is a hybrid system with zero export exempt from registration?

No. NERSA says the duty to register depends on having a grid connection and the installed capacity, not on exporting. Only systems with no grid connection are exempt.

How much can a 5 kW system save in Bloemfontein?

On our illustrative sketch — 700 kWh a month household, about 410 kWh of solar used at home — roughly R1 400 a month in summer and R1 800 in winter on the domestic IBT tariff, about R18 000 a year before VAT effects.

Sources & related

• Centlec tariff documents (NERSA-approved MMM tariffs 1 July 2026 – 30 June 2027)
• Centlec Small Scale Embedded Generation Policy 2026/27 FY
• NERSA media statement: Eskom retail tariffs 2026/27 (8.76% direct, 9.01% municipal)
• SAnews: NERSA clarifies SSEG registration rules
• Solar News 24: net metering vs net billing
• Solar News 24: should I export or self-consume?