Your electricity bill rises every year whether the lights stay on or not. Solar That Pays shows you how to read your bill, size a system to what you actually use, claim the Section 12B tax deduction and choose between cash, a loan or a PPA, with every calculation worked in rand.
Panels you can't use in daylight, with no fair export rate, are capital you paid for and never get back.
Divide your whole bill by your units and payback looks a year shorter than it really is. Fixed charges don't go away.
Section 12B lets most businesses deduct 100% of a solar system in year one. Many owners never claim it.
Sources: Eskom/NERSA (2026), Creamer Media (June 2026), Jaltech survey via VUKA Group (Nov 2025). Payback is an illustrative worked example from the book.
A 24-page PDF playbook and an Excel model that calculates your monthly saving, payback, Section 12B tax saving, IRR and a 10-year comparison of cash, loan and PPA from your own bill.
The farm case studies, Cape Town's Cash for Power figures and the Jaltech business survey come from published South African sources listed in the book. "Thandi" is a clearly labelled illustrative business owner used to work through the calculations.
It's written for businesses (Section 12B, business tariffs, PPAs), but the sizing, bill-reading and installer chapters apply to any property.
No. It's practical business education to help you ask the right questions. Confirm Section 12B with your accountant and the technical design with a registered installer.
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