How to calculate the power of the generator for the home?

The presence of a generator in the house is an important aspect for ensuring uninterrupted power supply when switching off the network, fan lights, and in emergency conditions. Today we will talk about how to choose the right alternative source of electricity depending on the size of the house and the volume of loads.

The first thing to do when choosing generator is to calculate its power. To do this, you need to understand what amount of work the device should perform. Is it necessary to feed the entire house, or is it enough to provide lighting and refrigerator with electricity? After answering this question, you can start determining how to calculate the capacity of the generator.

Step 1. Identify your power supply needs

You first need to know how much electricity you need to meet your needs. To do this, consider:

• Electrical devices, specifying their power in watts (W);
• Duration of work by determining the number of working hours for the generator;
• Additional factors, taking into account the possibility of simultaneous use of several devices.

Step 2. Calculate the total power

How to calculate generator power - formula:

a+b+c+20%= d where

• a, b, c are different electrical appliances commonly used in the house;
• 20% - put a supply of power to an increase in the number of devices;
• D is the value of the power that is recommended to buy a generator.

Consider on the example:

1. Four 60 watts+required power of power 10%= 264 W
2. Fridge of 400 W+required stock 200%= 1200 W
3. 300W TV TV+required stock 50%= 450 W
4. Microwave Furnace 700 W+Required Stock 50%= 1050 W

*add the required stock, because when starting, the devices consume much more energy.

in the amount we have 264+1200+450+1050 = 2964 W. So you need a 3 kW generator.

Step 3. Note all details

If your home has an electric boiler, then energy consumption is increasing significantly.

It should also be borne in mind that the repair process requires more power volumes. Therefore, if you use building tools, such as circular dust or a hand-made concrete mixer, the generator rated should be greater by 1-2 kW.

Step 4. Choose the generator

After all calculations and determining the required electricity volume to power your home, you can start choosing a generator. On the website of the online store Vnedorognik you can filter models not only in power, but also by the number of phases, voltage, type of installation, place of use, etc.

If you can't find the right product, call the number specified in Contacts and our manager will provide expert advice on the questions that interest you. We cooperate with the country's largest logistics companies, so we deliver to any settlement of Ukraine.

Subscribe to our social networks