Solar in Johannesburg: 2026 Cost, Payback & City of Johannesburg (City Power) Rules
Verified install prices, City of Johannesburg (City Power) SSEG rules, real solar yield data, sample bill walkthrough, common mistakes, step-by-step process. Updated April 2026.
The Johannesburg solar story
JHB has a published SSEG policy but the residential application path is so backlogged that most installers configure systems "non-export" by default and skip the City Power application. You still save heavily on your own bill - just no income from excess.
Sample bill walkthrough: a typical Johannesburg home
Real-world numbers for a household currently spending around R4,000/month on electricity in Johannesburg. We use the 5 kVA kit at the mid-range install price.
| Current monthly Eskom / municipal bill | R4,000 |
| 5 kVA install (mid-range) | R117 000 once |
| Monthly bill after solar | R1,500 |
| Monthly Eskom savings | R2,500 |
| Estimated payback | 6.5 years |
Worked example. Your actual numbers depend on your roof orientation, daytime consumption pattern, installer quote, and battery sizing decisions. Use the calculator to get a tailored estimate: Solar Savings Calculator →
Solar sizes & payback in Johannesburg
Annual return (bill savings + SSEG income) and payback period for each kit tier in Johannesburg. Assumes 85% self-consumption, 15% exported to grid where buyback applies.
| Kit | Mid-range cost | Annual gen | Bill savings/yr | SSEG/yr | Payback | |
|---|---|---|---|---|---|---|
| 5 kVA | R117 000 | 3,220 kWh | R10 811 | — | 10.8 yrs | Details → |
| 8 kVA | R192 000 | 6,440 kWh | R21 622 | — | 8.9 yrs | Details → |
| 15 kVA | R355 000 | 12,880 kWh | R43 245 | — | 8.2 yrs | Details → |
Monthly solar generation curve in Johannesburg
How a 5 kVA install (4 panels, 1.84 kWp) generates across the year in Johannesburg. Annual total: 3,220 kWh. Bars are roughly to scale - October to March is your strongest production, June to August your weakest.
Numbers in kWh on each bar. Calculated from Johannesburg’s 1750 kWh/kWp/year yield distributed across the typical SA seasonal curve - production is highest mid-summer (October-December), lowest mid-winter (June-July).
Step-by-step: how to install solar in Johannesburg
Process from first quote to live system, specific to City of Johannesburg (City Power). Total elapsed time typically 6-12 weeks.
- 1Get 3 quotesSpecify "non-export configuration" up front - this avoids the SSEG paperwork.
- 2Choose installer + finalise designBattery sizing matters most here since you can't monetise excess.
- 3InstallTypical 5 kVA install: 2-3 days. JHB roofs are mostly tile/IBR - confirm mounting style.
- 4Electrical CoCRequired for property sale.
- 5Optional: SSEG applicationIf you want eventual buyback, submit to City Power. Allow 6-12+ months.
Common mistakes specific to Johannesburg
What we see go wrong on Johannesburg solar installs. Some are universal mistakes, some are local to the city’s climate, geology, or municipal rules.
- Sizing for SSEG income. The application backlog means most JHB residents will not have buyback live for 6-12 months even if applied. Size to your own consumption.
- Not setting the inverter to "non-export". Without this configuration the inverter pushes excess to the grid even though City Power can't register or pay you for it - effectively wasting that solar energy.
- Forgetting the City Power load-limit registration. Even non-export installs above 350 kVA need notification.
- Skipping bird/hail mesh. JHB hailstorms are real - some installers skip mesh to save R3,000 and you lose a R20,000 panel to one bad storm.
Johannesburg vs other SA cities
| City | Yield | Tariff | Buyback | 5kVA payback |
|---|---|---|---|---|
| Johannesburg | 1,750 | R3.95 | — | ~5.5y |
| Cape Town | 1,900 | R4.2 | 145.16c | ~4.5y |
| Pretoria | 1,750 | R4.09 | — | ~6y |
| Durban | 1,650 | R3.65 | — | ~6y |
Frequently asked questions about solar in Johannesburg
Can I sell solar power back to City of Johannesburg (City Power)?
City Power has a published SSEG framework but residential approval is widely reported as backlogged. Most JHB installs are configured "non-export" (no reverse feed) so the city application is avoided entirely. If you stay non-export, your only return on solar is offsetting your own consumption - which is still excellent at JHB tariffs.
How long does solar take to pay back in Johannesburg?
A typical 5 kVA solar + battery install in Johannesburg pays back in approximately 5.5 years. Solar yield is 1750 kWh per kWp per year. Combined with the upper-block City of Johannesburg (City Power) tariff of R3.95/kWh, a 4-panel kit (~1.84 kWp) generates roughly 3,220 kWh/year worth approximately R10 811 in bill savings annually.
What is the solar yield in Johannesburg?
Solar yield in Johannesburg is 1750 kWh per kWp per year - 1 kWp of installed panels (roughly two 460W panels) generates 1750 kWh of electricity over a year on a north-facing roof at typical tilt. Cape Town has the highest yield in SA at ~1,900 kWh/kWp/year; Durban has the lowest at ~1,650 kWh/kWp/year.
What size system do I need in Johannesburg?
For an Eskom bill of around R4,000/month, the typical right-fit is the 5 kVA inverter + 10 kWh battery + 4 panels costing roughly R117 000. After install, expect your monthly bill to drop to about R1,500, saving R2,500/month. Pages with detailed sizing: see the size pages below.
What does Johannesburg solar cost in 2026?
2026 prices in Johannesburg: 3 kVA backup R48 000-R80 000, 5 kVA mid-tier R90 000-R145 000, 8 kVA large R150 000-R235 000, 15 kVA premium R280 000-R430 000. Always get 3 quotes - the spread between cheapest and most expensive on the same kit is typically 25-40%.
Updated 28 April 2026. SSEG figures from City of Johannesburg (City Power)’s 2025/26 approved tariff document; rate expires 30 June 2026 and is reviewed annually. Solar yield from PVGIS / Western Cape Government solar map. Tariffs from each metro’s public tariff schedule.
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