15 kW Solar System solar system
in North West
North West receives 5.2 peak sun hours/day and pays R2.76/kWh for electricity. A 15 kW Solar System system here saves R3,100–R4,400/month — use these province-specific numbers to size your system correctly.
15 kW Solar System in North West — at a glance
- Monthly saving
- R3,100–R4,400
- System cost (installed)
- R230,000–R350,000
- Payback period
- 5.5–7.8 years
- Monthly energy output
- 1,880 kWh/month
- Peak sun hours/day
- 5.2 h (PVGIS v5.2)
- Electricity tariff
- R2.76/kWh (2025/26)
- Typical panels
- 34–42 × 400W panels
- Inverter example
- Victron 3-phase or Sunsynk 3-phase 15 kW
80% yield factor, 60–85% self-consumption. Methodology
Why a 15 kW Solar System system works well in North West
North West province has excellent irradiance at 1,880 kWh/kWp. Rustenburg's mining-sector homeowners with high electricity usage see strong returns on solar investment.
For a 15 kW Solar System system, North West's 1,880 kWh/kWp/year irradiance means annual output of 22,560 kWh. At the province's average residential tariff of R2.76/kWh, that generation is worth R3,100–R4,400 per month. With electricity tariffs rising ~10% per year, each year of delay costs you more in both higher bills and lower government tax rebate eligibility.
The 15 kW Solar System system is ideal for Commercial or large estate, with monthly electricity bills in the R8,000+ range. It generates enough power for daytime use in most North West homes, and pairs well with a 5 kWh battery for load-shedding protection.
Battery options for a 15 kW Solar System system in North West
Adding a battery increases self-consumption from 60% to 85% — a R1,300/month uplift at North West tariffs.
15 kW Solar System solar installers in North West cities
Click a city to see savings calculated with city-specific PVGIS data and your municipality's actual tariff.