My household electricity is about R500 pm for about 5 people.
But here is what to do.
1. Replace all your lights with LED. (Now makro sells the OSRAM 10.5W bulbs (normal) for R39, and get cool white they are really bright.
2. Insulate your house (Isotherm 100mm-135mm).
3. Ignore cool tech paint (honestly its crap, painting your roof white leads to condensation in winter, and that gives you wet ceilings, so don't do that. But paint your house a light colour.
4. Insulate all your pipes to and from the geyser. Prevent heat loss. You can buy piping insulation with cable ties and do it. It's a once off thing.
5. Throw out heaters and run inverter aircons (It can heat or cool a room in 5 minutes, much quicker than any heater.)
6. Makro also sells radiant led spotlights (20w will make you look like a flood lit cricket ground. My neighbor isn't a fan because I installed 2. But generally your yard looks like it's daylight (but at night).
7. Switch to gas (cooking on gas is cleaner, and way cheaper.
8. If you like coffee or tea get a thermo kettle (Yip these keeps water warm upto 4 hours after you finished boiling it.
9. Insulate your geyser. Mine has insulation inside out. Generally I never switch the geyser off.
10. Put silver foil insulation at your beams. It helps keep your ceiling temperature cool as well.
Just changing lights etc will save you bucket loads. Especially if you have downlighters. My one friend has 42x50w downlighters in his house, which is pretty much all on, very often. 2100W. If he switched these to the equivalent led he would be using 4.5w x 42 = 189w.
The same with your electronics. Heavy gaming pcs don't need to run 24x7 if you're not at home, get something light that handles downloads ie an USDT or Mac Mini. Let everything run on Power-save mode also (SSD drives are great for this), on and off quick.
You can cut soo much power if you go from room to room.
And yes, I am running 3x aircons, and 5x pcs, and still getting such a low bill.
