When buying a generator, arise doubts regarding lots of aspects such as the models, versions, powers, etc. This makes it difficult to know which is the right generator for you and what equipment you should really buy.

In this post we want to help you make the right purchase decision by explaining what you should take into account when buying an electric generator.


What are you going to use the generator for?

The first thing you should clarify is what you are going to use the generator for. There are mainly two types of generators, those that are inverters and those that are not. The main difference is that inverter generators are used to power electronic equipment that is more delicate, for example, televisions, computers, etc., since these require a quality current, without voltage spikes or alterations in the supply. It’s worth bearing in mind that with an inverter generator you will not be able to power, for example, a drill, a concrete mixer or any other machine or tool with a high inductive capacity.

For all other applications, for example in machines and tools, a normal generator is what we need.

To summarize, depending on what we need to feed we have:

  • Inverter generator: TVs, computers, spokes, illumination, etc.
  • Generator: Grinders, vacuum cleaners, mower, concrete mixers, etc.


What power do you need for the generator?

Once you have chosen the type of generator you need, you must determine the power.


In general, you can consider that the power you need from a generator must be equal to the sum of the powers of all the devices that you are going to connect to the generator and that you are going to make work at the same time. However, it is very important to note that some appliances require a starting power that is higher than the actual running power.

It is also important to always consider a safety margin so that the generator does not always work at 100% of its capacity, in this way you guarantee a much longer useful life, although normally this safety margin is already given by the PMR itself.


Petrol or diesel?

With generator engines we have something very similar to that with car engines, it depends a bit on each person’s preferences. Normally diesel generators have a greater autonomy than gasoline generators, on the other hand they are more noisy. Industrial generators that work with diesel engines typically have a longer lifespan than gasoline engines, but they also come at a higher price. Normally and for simple applications, a gasoline generator is sufficient.


Other aspects to take into account

You should remember that generators are motors and that they produce noise. If you are going to use the generator to power your home or business, it is important to think about a super-silent generator to avoid annoying noises as much as possible.

Another important aspect is to think if the generator will be fixed in one place or if you are going to transport it. Starting from 20-30 Kgs, it’s wise to buy a generator that has wheels to facilitate its transfer.