Solar panels in Johannesburg — save R1,100 – R1,600/month
Johannesburg receives 5.0 peak sun hours per day and pays R3.08/kWh for electricity. Get a free, no-obligation quote from SAPVIA-registered Johannesburg installers in 90 seconds.
Savings based on 5 kW system, 80% yield factor, 60–85% self-consumption. Methodology
Solar power in Johannesburg: the data
Johannesburg receives 1,820 kWh/kWp/year of solar irradiance based on PVGIS v5.2 data. This means a well-installed 5 kW solar system in Johannesburggenerates approximately 607 kWh per month.
At the current Johannesburg residential tariff of R3.08/kWh, that generation is worth R1,100 – R1,600 per month depending on self-consumption. With average tariff increases of 10% per year, a homeowner who installs today will see their savings grow every year — making solar one of the best inflation hedges available to Johannesburg residents.
Johannesburg has a population of approximately 5.6 million — one of South Africa's major urban centres in the Gauteng.
Solar system sizes for Johannesburg homes
Savings calculated at Johannesburg tariff of R3.08/kWh and 1,820 kWh/kWp/year.
Solar FAQs for Johannesburg homeowners
Solar in nearby cities
Solar in Johannesburg suburbs
Suburb-specific savings estimates based on local PVGIS irradiance data.