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Plug in power meter

How to measure the electricity usage at home


1. How to monitor the electricity usage at home

2. How to use a plug in power meter

2.1. Measuring the electricity usage of a dishwasher using a plug in power meter

3. Energy conservation

3.1. Proven ways to save electricity at home

How to monitor the electricity using at home

If your objective is to decrease your electricity usage and save money on your electricity bills, the first step that you need to take is to measure how much electricity you are consuming.

Afterward, you need to find the most effective ways to reduce your electricity consumption and measure how much electricity you are actually saving.

All of our house appliances and devices like the washing machine, the dishwasher, the TV, or the printer are plugged into a wall socket. 

So, with a power consumption meter, we can determine how much electricity our appliances or devices are using and, more importantly, we can measure the electricity usage over a period of time.

The image below shows the power meter that we are using during our tests. For more details and specifications, clicking on the image will redirect you to the product page on Amazon.

plug in power meter

How to use a plug in power meter

Following the principle that one image is worth one thousand words, we have made a video where we show how to use a plug in power meter and how it can be used to measure our appliances and device’s power consumption.

We are working towards making the videos available in different languages so, if English is not your main language, have a look at our Effiworkx YouTube channel for other language options. 

Do not forget to ENABLE the CAPTIONS.

Plug in power meter

Measuring the electricity usage of a dishwasher with a plug in power meter

As explained in the video, we did measure the electricity usage of our dishwasher cycles and that did allow us to learn that we were not using the most efficient cycle. 

We were mostly using the Auto cycle, which consumes more electricity than the Eco cycle. Even though there is only a difference of 13 cents per cycle, in the long run, we will be saving quite a bit of money on electricity by using the Eco cycle.

Dishwasher cycles

In our opinion, a plug in power meter is a cheap and easy-to-use device that makes us more aware of our daily electricity usage. 

And, as we have proved already, to save money it may just be a matter of being more aware of how our habits (lifestyle) can contribute towards reducing our energy and water usage.

As an example of how our habits define our electricity and water consumption, have a look at this video where we review what is more economic if washing the dishes by hand or using the dishwasher.

Dishwasher electricity and water usage

Energy conservation

Energy conservation can be defined as the decision and the act of using less energy 

Energy conservation both benefit you and the environment 

The act of saving and conserving electricity does benefit you because you will be paying less for your energy bills. 

And it also does benefit the environment because conserving electricity prevents any unnecessary waste of natural resources.

Now, at the individual level, it may not look worth trying to save a few watts here or there. 

Still, every little count and if hundreds or thousands of us do save a little every time, it will make an important contribution towards conserving our natural resources.


For example, if 9000 households would manage to save as little as 10 Watts per day (0,01 kWh) that would add to 32850 Kilowatt hours (kWh) saved per year. 

9000 households x 0,01 kWh per day x 365 days per year 

32,850 kWh saved per year

That is a considerable amount of electricity, but let’s add additional perspectives for clarity:

> Assuming an average cost of 0,18 euros (or dollars, or pounds, or any other currency) per kWh, we would collectively be saving nearly 6000 euros per year.

> To produce 32,850 kWh of electricity it is necessary to use around 17 metric tons of coal or 56 barrels of residual fuel oil.

Have a look at this page for more information about the number of resources needed to produce electricity.

In any case, small energy savings do count when looking into the bigger picture.

Proven ways to save electricity at home

If you are looking for saving electricity ideas at home, have a look at this YouTube video where we provide some useful tips to reduce electricity usage and decrease the electricity bill.

How to save electricity at home

All our videos can be found on YouTube, in both English and Spanish languages.

Additionally, if you are looking for energy-saving opportunities but you don’t know where to start, use our electricity usage calculators to become aware of your electricity consumption, the electricity costs, and the potential savings. 

Fridge electricity usage calculator icon
Freezer electricity usage calculator icon
Dishwasher electricity and water usage calculator icon
Coffee machine electricity usage calculator icon
Coffee machine

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