Solar, Inverter & Battery in South Africa: Independent Buyer’s Guide (2026)
Verified 2026 prices, brand comparisons, city-by-city payback math, and rent-vs-buy analysis - written for SA homeowners deciding what (if anything) to install in 2026.
The five questions readers ask first
1. How much does it cost?
| Tier | All-in price (2026) | Suits | |
|---|---|---|---|
| 3 kVA | R48 000-R80 000 | 1-2 bed flat | Details → |
| 5 kVA | R90 000-R145 000 | 2-3 bed home | Details → |
| 8 kVA | R150 000-R235 000 | 3-5 bed home | Details → |
| 15 kVA | R280 000-R430 000 | 5+ bed home or small business / dual-residence. Effectively off-grid-ready: most days never touch the grid. Cuts Eskom bill 70-90% with right roof. | Details → |
2. Where does it pay back fastest?
Solar payback varies dramatically by city - and the biggest reason is what the municipality does (or doesn’t) pay for excess solar. Cape Town buys excess at 116.41c/kWh + 28.75c/kWh incentive (effective ~145c/kWh) - the best SSEG deal in SA. Tshwane prohibits reverse feed entirely. Below is the practical payback for a typical 5 kVA install:
| City | SSEG status | Effective buyback | 5kVA payback | |
|---|---|---|---|---|
| Cape Town | ● Active buyback | 145.16c/kWh | ~4.5 years | City guide → |
| Johannesburg | ● Backlogged | — | ~5.5 years | City guide → |
| Pretoria | ● Prohibited | — | ~6 years | City guide → |
| Durban | ● Limited | — | ~6 years | City guide → |
3. Which brand?
For a typical 5 kVA install, your real-world choices are Sunsynk, Deye, Victron, Growatt, or GoodWe. Worth knowing up front: Sunsynk inverters are manufactured by Deye in China, so the hardware is closely related, with Sunsynk applying its own firmware tweaks and SA-distribution warranty terms. Below are typical 5 kVA inverter prices (excluding battery, panels, install):
| Brand | 5kVA inverter price | Best for |
|---|---|---|
| Sunsynk | R18 000-R22 000 | Households who want zero installer or warranty drama, are willing to pay for the safety of the dominant SA brand, and don't want to research alternatives |
| Deye | R15 000-R20 000 | Budget-conscious buyers willing to verify their installer is Deye-friendly |
| Victron Energy | R25 000-R45 000 | Off-grid installs, remote farms, yacht/RV, or households where reliability matters far more than cost |
| Growatt | R6 700-R12 000 | Budget installs where the buyer accepts a higher chance of having to deal with the manufacturer directly for warranty work |
| GoodWe | R14 000-R19 000 | Buyers who want a name-brand alternative to Sunsynk and find a competent GoodWe-experienced installer |
Full deep-dive: Sunsynk vs Deye - the honest comparison
4. Rent or buy?
Subscription / rental providers in SA offer R1,500-R4,250/month for solar without upfront cost. Over 10 years, buying outright usually wins by R50-150K. But rental wins on cash flow, risk transfer (theft/maintenance), and exit flexibility (you can stop paying when you move). Honest comparison: Rent vs Buy: the 10-year math →
5. Do I even need it?
Load shedding ended in 2025 - so why is anyone still buying? Three reasons: Eskom tariffs are up 12-18% per year (2022-2026), grid instability post-LS is real (transformer failures, planned interruptions), and battery prices have dropped 30%. The decision tree for whether you should buy depends on your monthly bill, roof orientation, and whether you actually fear another LS round. Decision tree: should I go solar in 2026? →
Browse the full guide
What changed in 2024-2026
- The R15,000 individual solar tax rebate ended (28 Feb 2024). Don’t expect it to return. Section 12B (commercial accelerated depreciation) is the only remaining tax incentive and only applies to business installs.
- Battery prices dropped roughly 30% (2024-2026). LiFePO4 batteries that were around R12,500/kWh in 2023 now sit at R6,500-R12,500/kWh installed - the main reason payback periods shortened even though load shedding ended.
- Eskom tariffs +12-18% per year. Compounded since 2022, the average residential SA tariff has roughly doubled. Own-consumption solar (offsetting your own bill) is now the dominant case, even without buyback.
- Cape Town residential cash buyback (Feb 2024 onward). Cape Town is the only SA metro paying cash above a R1,000 credit threshold for excess solar - though the headline rate is reviewed annually and the 2025/26 schedule expires 30 June 2026.
- SA solar subscription market matured. GoSolr, Wetility, and Versofy now all offer 5-year rental contracts with insurance and maintenance bundled. Wetility’s OneBill product launching May 2026 bundles grid + solar into a single monthly payment.
Updated 28 April 2026. Prices verified against multiple SA installer quote portals (Sustainable, Springs Energy, Solar Advice, GoSolr, Versofy). SSEG tariffs from each metro’s 2025/26 approved tariff document. Brand notes from PowerForumSA, MyBroadband threads, and local installer feedback. We update this page monthly.
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