Is it really necessary to estimate the energy consumption of your regular household appliances and electronics? The answer is a sure-shot yes.
When the electricity bill drops in, you may have wondered how so much power has been consumed. The trick is to keep a regular track of the power consumption of your regular electronics.
You don’t need professional assistance to calculate the mathematics of energy consumption. You just need to keep a log of the daily power-consuming appliances for a balanced energy bill.
If you feel that you’re in over your head with energy calculations, don’t worry! We break the whole process down to be smart with your devices and preserve your energy consumption.
Table of Contents
- 1 What The Calculation Entails
- 2 The Energy Consumption Of Various Household Electronic Appliances
- 3 In Closing
What The Calculation Entails
First of all, if you’re not looking forward to the calculation because it sounds convoluted, trust us when we say it’s not too difficult.
To make a realistic calculation, you must consider electricity consumption appliable for a family unit instead of individual consumptions.
Each appliance is classified by its energy class, size, hours consumed, and power intake in watts, kilowatts, or amperes.
So, you need to consider the following information:
- Count the number of people living in the house.
- List down the number, size, and type of home appliances.
- Identify the appliance’s power rating and review the energy guide label.
- Use an electricity usage meter to determine the rate of consumption, which can be obtained from various enterprises like Spark Energy.
- Multiply the power of the appliance with its service life based on the number of hours it is used per day. This formula will help you calculate its energy consumption.
- The device’s speed must also be considered. Remember, the lower the level of power that an appliance is used at, the lesser its energy consumption.
- Draw up a rough estimate of the number of hours an appliance runs per day or maintain a log for accurate data.
- It is imperative to estimate the wattage of the product. Multiply the appliance’s energy usage by its voltage usage, or use the internet to find the wattage.
The Energy Consumption Of Various Household Electronic Appliances
It is highly recommended to estimate how much electricity is consumed by your appliances to understand how much money goes into using them.
The basic formula used here is:
- Wattage multiplied by Hours Used Per Day = energy consumed by each appliance
- 1 Kilowatt = 1000 watts
- Divide by 1000 to obtain daily kilowatt-hour (kWh)
- Multiply kWh by the number of days the appliance is used
- Then further multiply the kWh per year by your local utility’s rate per kWh consumed to get the annual consumption.
Let’s look at the energy consumption of some household appliances to understand the differences in their consumption:
1. Electric Stove
It is recommended to defrost food before cooking and always keep the lid on while cooking to save energy. The normal energy consumption rate per year per person is 200 kWh.
2. Electric Water Heater
It is a highly energy consuming product and can be easily replaced by a heat pump, gas boiler, or a solar heater if used a lot. For a family, the regular consumption of energy of a water heater is 1500 kW per year.
A dishwasher has an average utility of 1 hour per day, using 432 kWh per year. With a 330 wattages/hour, you must run the light cycle and turn off the heated drying option of the dishwasher to save energy.
A hairdryer consumes 710, and a ceiling fan consumes 35 wattages/hour. The hairdryer uses much more heat as the speed is high, so it’s a better option to let your hair air dry.
5. Iron And Microwave Oven
The iron has an average utility of 1 hour per week, resulting in 52 kWh per year and 1,100 wattages/hour.
A microwave oven has an average utility of 2 hours per week, which amounts to 89 kWh per year. It consumes about 1,500 wattages/hour.
Both are high energy consumers due to high heat and high-frequency radio waves.
6. Toaster And Refrigerator
A toaster uses 1,100, and a refrigerator uses 225 wattage/hour. But since refrigerators are used 24/7, they consume more energy than toasters, which are run only for some time.
The refrigerator has an average utility of 24 hours per day, using 642 kWh per year.
7. Coffee Maker
The coffee maker has an average utility of 30 minutes per day, using 128 kWh per year. A coffee maker utilizes 1,000, and a slow cooker uses 200 wattages/hour.
But it is recommended to replace the coffee maker with the boiling of water on a pot as the former consumes high-level energy.
8. Heating And Cooling
The cooling system might use anywhere from 200 to 1,800 kWh/month. A heating system could vary from 100 kWh per month to 3,500 kWh/month, depending on the location and climate.
9. Phantom Loads
A phantom load is when appliances such as televisions, computers, and kitchen tools continue to consume power when switched off.
However, you can keep energy bills to a minimum by unplugging these appliances.
Keeping track of consumption levels is a great way to lower your power costs, but it’s a lost cause if you aren’t mindful of how you use your appliances.
Let us go through some very basic energy-saving tips that must be followed in every household.
- Replace old electronics with newer models that consume less power.
- Use your hairdryers, microwave, and OTGs at low temperatures.
- Always switch your TV, laptop, chargers, computers off and do not leave it on the standby mode.
- Switch to LED lights.
- Avoid pre-heating the OTGs and microwaves.
- Defrost the freezer frequently.
- Check the energy ratings and energy consumption of appliances before buying them.
With rising costs of energy use across the country, as well as environmental concerns on the incline, you simply cannot afford to drop the ball on curbing your energy consumption.
A power consumption meter can be installed to identify the utility of power-hungry appliances and electronics used daily, like the one offered by Green Mountain Energy.
If the energy bill is higher than expected, the tool makes it easier for you to determine the energy consumed and classify if any product is running faulty, thereby easing your burden of a high electricity bill.