Replace all lighting with LED lights. LED’s can use up to 5 times less energy.
Replace your geyser with a solar or gas geyser. Solar will cost less to run but will still need electricity on overcast days. A good gas geyser will have a constant running cost but no electricity will be needed.
Replace your stove with a gas stove.
Use timers for appliances that are not being used all day. No need to keep appliances running. They use more electricity than u realize.