Power Consumption Of Electric Geyser
If the company charges 20 cents per kwh then that 100w globe costs you 20 cents to run for 10 hours 10 cents for 5 hours etc.
Power consumption of electric geyser. Geyser electricity consumption test day 1 the graph above shows the way a geyser uses electricity. So the 100w rated globe above needs to run for 10 hours to use 1kw of power. Electricity consumption of water heater depends on. The energy e in kilowatt hours kwh per day is equal to the power p in watts w times number of usage hours per day t divided by 1000 watts per kilowatt.
Ekwhday pw thday 1000 wkw energy cost calculator. What factors does electricity consumption of water heatergeyser depend on. Hence the normal temperature of your geyser is between 550c and 650c. An average water heater runs three hours daily.
Cost per unit x geyser usage in mins. That is the power used for a period time. This is the main driving factor of electricity consumption by water heaters. A 50 gallon 5500 watt water heater with a 90 ef and an electricity rate of 16 per kilowatt hour will cost 781 to operate each year.
The more the hot water you use the more the electricity it will consume. Volume of hot water used. So a 3kw electric geyser will consume 1 unit in 20mins. Electric water heaters are typically running for 3 hours a day to heat water newer more efficient models may run for only half the time during each day.
How to save energy. The unit tested was a kwikot dual 600 200 litres with a 4kw heating element. A gas geyser works out cheaper. A 100w bulb when run for 10hrs will consume 1 unit of electricity.
Click calculate to find the energy consumption of a water heater using 4000 watts for 3 hours a day at 010 per kwh. The power company will charge you per kilowatt hour kwh. Insulating your geyser and pipes on this type of geyser will allow you to save at least 300 kwhyear depending on the current efficiency of your system a standard geyser loses about 400 to 500 kwhyear in heat loss and you can expect to drop this number to 90 kwhyear with a good insulation.