All topics
Every Bill Detective guide, grouped by topic: solar costs, inverters and batteries, backup power, tariffs, hot water and water backup for South African homes.
Solar costs
What solar systems really cost South African homes in 2026, what drives a quote up or down, and how long payback takes once tariffs and fixed charges are counted.
Inverters and batteries
How to size, compare and price home inverters and lithium batteries in South Africa, with worked examples and current published prices.
Tariffs and bills
Eskom and municipal electricity tariffs, fixed charges and prepaid units explained in plain rands, with the latest NERSA decisions and how they change your bill.