8.00 kW system guide
8.00kW Solar System Price, Output and Savings
A larger residential or small-business daytime offset system.
At a glance: about 17–19 panels (450 W), 34.2–43.2 m² roof, roughly 32.9–39.5 kWh/day, installed around R133 760–R170 240 grid-tied.
Configurations
| Config | What it includes | Indicative installed |
|---|---|---|
| Panels + inverter | Grid-tied, no battery. Daytime self-consumption focus. | R133 760–R170 240 |
| Hybrid with battery | Hybrid inverter + storage for evening use / limited backup. | R183 040–R232 960 |
| 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 | 12 800 kWh | R39 723 |
| Free State | 1750 | 14 000 kWh | R43 447 |
| Gauteng highveld | 1700 | 13 600 kWh | R42 206 |
| KwaZulu-Natal coast | 1500 | 12 000 kWh | R37 241 |
| Northern Cape | 1900 | 15 200 kWh | R47 172 |
| Western Cape coast | 1550 | 12 400 kWh | R38 482 |
Who a 8.00 kW system suits
Typical monthly usage match: 650–1000 kWh.
Fits higher-consumption homes or small offices. Check three-phase supply and roof area early.
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
Is 8kW overkill for a home?
Not if monthly use is high (roughly 650–1000 kWh) or you want strong daytime offset. Otherwise a 5kW may be more cost-effective.
Related guides
Next step
Get a personalised estimate for your roof using satellite data, your usage and local tariff where available.