Most popular sizes · SA market 202612 kW Solar System solar system
12 kW Solar System solar system
South Africa guide
For high-consumption homes and small commercial properties seeking maximum independence from Eskom.
Suitable for: Large estate or small commercialMonthly bill: R5,000 – R12,000
Free · No obligation 90 seconds SAPVIA-registered only
12 kW Solar System system at a glance
- System cost (installed)
- R180,000 – R260,000
- Monthly electricity saving
- R3,500 – R7,000
- Payback period
- 3.2–5 years
- Annual energy output
- 17,280 kWh/year
- Typical panel count
- 28–34 × 400W panels panels
- Inverter example
- Sunsynk 12 kW or Victron 15 kVA
Based on national avg tariff R2.90/kWh, 1,900 kWh/kWp/yr, 80% yield factor. Methodology
Battery backup options for a 12 kW Solar System system
Add a battery to keep power during load-shedding and increase self-consumption from 60% to 85%.
Commercial-grade storage
20.4 kWh
Additional cost
+R125,000
Off-grid capable
30.7 kWh
Additional cost
+R185,000