Section 12B · Johannesburg, Gauteng

Section 12B Solar Tax Deduction in Johannesburg

Johannesburg sits on the Highveld at 1,750m altitude, enjoying high solar irradiance with an annual yield of 1,750 kWh per kWp. Afternoon thunderstorms in summer are brief and do not significantly reduce daily generation.

Solar Conditions in Johannesburg

Solar Yield

1,750 kWh/kWp

Avg Tariff

R2.95/kWh

Sun Hours/Day

6.0-7.5

Electricity Tariffs in Johannesburg

City Power and Eskom tariffs in Johannesburg average R2.95/kWh for commercial users. Time-of-use tariffs make solar especially valuable during expensive peak periods.

As South Africa's economic hub, Johannesburg has the highest concentration of commercial solar installations in the country. City Power's SSEG registration process is well-established for businesses going solar.

Example: 150 kW Commercial System in Johannesburg

Based on typical industry parameters. Your actual results will vary.

Section 12B Deduction

R2,100,000

Year 1 Tax Saving

R567,000

Payback (with tax)

2.1 yrs

Simple Payback

2.7 yrs

IRR

52.7%

25-Year Saving

R103,674,710

Solar ROI by Industry in Johannesburg

Manufacturing Retail Office/Commercial Warehouse/Distribution Hospitality Healthcare

Frequently Asked Questions

Johannesburg averages 1,750 kWh per kWp annually thanks to its high altitude and clear skies. This is among the best yields for any major city globally.

Yes, positively. Higher altitude means less atmospheric interference, resulting in stronger solar irradiance. Johannesburg's elevation is a significant advantage for solar generation.

City Power requires an SSEG application including electrical compliance certificates and system specifications. Your solar installer typically handles this registration process.

Other Cities

Cape Town Western Cape Pretoria Gauteng Durban KwaZulu-Natal Port Elizabeth Eastern Cape Bloemfontein Free State East London Eastern Cape Polokwane Limpopo Nelspruit Mpumalanga

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