5.00 kW system guide
5.00kW Solar System Price, Output and Savings
The most common residential size in South Africa search demand — a balanced price, output and roof-space trade-off.
At a glance: about 11–13 panels (450 W), 22.8–28.8 m² roof, roughly 20.5–24.7 kWh/day, installed around R83 600–R106 400 grid-tied.
Configurations
| Config | What it includes | Indicative installed |
|---|---|---|
| Panels + inverter | Grid-tied, no battery. Daytime self-consumption focus. | R83 600–R106 400 |
| Hybrid with battery | Hybrid inverter + storage for evening use / limited backup. | R114 400–R145 600 |
| Backup-focused | Larger battery sized to essential loads — use the battery calculator. | Above hybrid range |
Estimated generation by solar-yield zone
| Region | Yield (kWh/kWp) | Annual generation | Indicative year-1 saving |
|---|---|---|---|
| Eastern Cape | 1600 | 8 000 kWh | R24 827 |
| Free State | 1750 | 8 750 kWh | R27 154 |
| Gauteng highveld | 1700 | 8 500 kWh | R26 379 |
| KwaZulu-Natal coast | 1500 | 7 500 kWh | R23 275 |
| Northern Cape | 1900 | 9 500 kWh | R29 482 |
| Western Cape coast | 1550 | 7 750 kWh | R24 051 |
Who a 5.00 kW system suits
Typical monthly usage match: 400–700 kWh.
Suits many 3–4 bedroom homes with mixed daytime loads. Pair with a battery for evening self-consumption or limited backup.
What it can and cannot power
It can offset a large share of daytime household loads. It will not remove fixed network charges, and without a correctly sized battery it will not cover full load-shedding backup for high essential loads.
Local tariff examples
Adjacent system sizes
Frequently asked questions
What does a 5kW solar system cost in South Africa?
Installed grid-tied estimates are derived from current all-in per-watt assumptions; hybrid with battery costs more. See the answer box for today's range.
How many panels in a 5kW system?
About 11–12 panels at 450W, needing roughly 21–29 m² depending on layout.
Can a 5kW system run a whole house off-grid?
Usually not. Off-grid needs careful load design, larger storage and often a generator. Most 5kW homes stay grid-tied or hybrid.
Related guides
Next step
Get a personalised estimate for your roof using satellite data, your usage and local tariff where available.