Section 12B · Durban, KwaZulu-Natal

Section 12B Solar Tax Deduction in Durban

Durban's subtropical climate provides 1,500 kWh per kWp annually. While humidity and coastal cloud cover reduce peak output compared to inland cities, consistent temperatures prevent heat-related efficiency losses.

Solar Conditions in Durban

Solar Yield

1,500 kWh/kWp

Avg Tariff

R3.05/kWh

Sun Hours/Day

5.2-6.8

Electricity Tariffs in Durban

eThekwini municipality tariffs average R3.05/kWh for commercial users. These relatively high rates compensate for slightly lower solar yield, maintaining strong financial returns.

Durban's industrial and port areas house many energy-intensive businesses that benefit from solar. eThekwini municipality has approved embedded generation policies supporting commercial solar installations.

Example: 150 kW Commercial System in Durban

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

2.8 yrs

IRR

50.9%

25-Year Saving

R93,065,324

Solar ROI by Industry in Durban

Manufacturing Retail Warehouse/Distribution Hospitality Healthcare

Frequently Asked Questions

Humidity causes occasional cloud cover that reduces output by 10-15% compared to inland cities. However, cooler panel temperatures from coastal breezes partially offset this loss.

Durban averages 1,500 kWh per kWp annually. While lower than Highveld cities, the high electricity tariff of R3.05/kWh still delivers excellent financial returns.

Yes. Higher tariffs and the 125% Section 12B deduction more than compensate for the modest yield reduction. Most Durban installations achieve payback within 4 years.

Other Cities

Cape Town Western Cape Johannesburg Gauteng Pretoria Gauteng Port Elizabeth Eastern Cape Bloemfontein Free State East London Eastern Cape Polokwane Limpopo Nelspruit Mpumalanga

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