South African households are paying more for electricity than at any point in recent history, and for many, the rhythms of load-shedding have shifted how they think about power use permanently. Understanding which appliances are responsible for the bulk of your consumption is the first step to making meaningful reductions, and the distribution tends to surprise people: the things that feel major are often not, and the things running quietly in the background are frequently the biggest contributors.
The geyser
In a standard South African household, the electric geyser or hot water cylinder accounts for between 30 and 40 per cent of total electricity consumption. It is, by a significant margin, the largest single consumer in most homes. Keeping the geyser switched on continuously means it is constantly reheating water to maintain its set temperature, whether you need hot water or not. Switching it off overnight or during extended periods away, installing a geyser timer, or setting the thermostat to between 55 and 60 degrees Celsius rather than the often factory-default 70 degrees, are the interventions with the largest impact. A geyser blanket reduces heat loss from the cylinder and reduces how often it needs to reheat.
Electric heaters
An electric bar heater or oil column heater running for several hours a day in winter is one of the fastest ways to watch an electricity bill climb. Most portable electric heaters draw between 1000 and 2000 watts, and some larger models go higher. Running one for four hours a day adds up quickly. Alternatives that cost significantly less to run include gas heaters, wood-burning fireplaces, and, for smaller spaces, heated blankets, which draw a fraction of the power of a space heater.
The tumble dryer
A tumble dryer is among the most power-hungry appliances in a household per cycle: most models draw between 1800 and 2400 watts. In winter, when line-drying feels impractical, it is tempting to run it constantly. Even a minimal reduction in tumble dryer use, reserving it for genuinely urgent items and using a drying rack indoors or in a sheltered spot for everything else, makes a noticeable difference to monthly consumption.
The pool pump
For households with a pool, the pump is often running continuously without anyone having evaluated whether it needs to be. Most pools require six to eight hours of filtration per day, not twenty-four. Fitting a timer to the pool pump and restricting it to this window typically halves the electricity it consumes. Running it during off-peak hours, if you are on a time-of-use tariff, reduces the cost per unit further.
Standby power
The cumulative draw of appliances left on standby is lower than the items above but genuinely adds up over a month. Televisions, gaming consoles, desktop computers, phone chargers left plugged in without a device attached, and older appliances with indicator lights all draw power continuously. A power strip with individual switches on each outlet, or the habit of switching at the wall rather than at the device, eliminates this without any inconvenience. Some appliances, particularly older television sets and set-top boxes, draw almost as much power in standby as they do in operation.
The second fridge
A second refrigerator or drinks fridge running in a garage or utility room is a significant and easily overlooked ongoing expense. If it is rarely full or could be consolidated with the main fridge, switching it off and using it only for specific occasions reduces consumption without a meaningful lifestyle impact. An empty or half-empty fridge is also inherently less efficient than a full one, since food and liquid in the fridge help maintain the internal temperature.
A note on load-shedding and habits
The interruption to daily power that load-shedding created has, for many households, produced useful behavioural changes: batch cooking during times when power is available, heating water when it is on rather than maintaining it constantly, and being more deliberate about what is switched on and when. These are worth carrying into periods of stable supply. The electricity-saving habits that felt necessary during load-shedding remain financially sensible regardless of whether the lights stay on.
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