Dual-fuel generators offer South African homeowners a critical advantage during extended load shedding: fuel flexibility. They can run on either standard petrol or LPG (liquefied petroleum gas) using a simple fuel selector switch. This is particularly valuable during high load shedding stages when petrol stations have queues or are temporarily closed, but LPG remains available through supermarkets, hardware stores, and gas suppliers.

LPG burns cleaner than petrol, with lower carbon deposits and fewer combustion by-products. Many users find that running on LPG extends engine service intervals and produces a noticeably smoother-running engine.

LPG also stores for long periods without the fuel degradation that affects petrol left in a tank for weeks, making dual-fuel generators practical for standby use where the generator may sit unused for months between outages.