this is all there is to consider

The mobility It is a territory in constant expansion. From electric mobility We talked, of course, and in it the electric vehicle has a lot to say. Spain is a country with specific characteristics in many homes that make considering an acquisition of this type somewhat more complex than going to a dealer. And it is largely because of what involves installing a charging point at home.

Installing a charger at home is the best way to always have our vehicle ready. The problem is that it is not an easy task (in many cases it is impossible) and neither is it accessible and affordable to the general public. Therefore, in this article let’s try to shed some light based on what established in the legal regulationsexplaining the possible grants which by the way, are getting more and more scarce.


At this point we are going to make two distinctions depending on where we want to install the charger: we can do it in a community garage, in our garage, if we live in an apartment, or in a single-family home, in which case it may be simpler. Another option is to recharge the vehicle at terminals on public roads, something that is not always possible (the chargers are busy) or advisable (they offer a malfunction).

Chargers in community garages


In the case of living in an apartment, you may have to make the installation in the corresponding community garage. In this case, you will find the basis of the entire process in the ITC BT 52 or what is the same, “Complementary Technical Instruction” (ITC) BT 52 for “Facilities for special purposes. Infrastructure for recharging electric vehicles”.

This is the most common case in our country, where a large part of the inhabitants in large cities reside in blocks of flatsbuildings that may or may not have the aforementioned garages.

If you like install a charger in your parking space, the one that corresponds to your flat, you must first inform the community (the president or administrators) of your intentions to install a charging point. It is a simple formal act, because according to Horizontal Property Law the installation does not have to be submitted to the approval of a board of owners. From here we must distinguish two types of configuration:

The garage and the flat we live in are on the same block: it is the most normal and in this case the regulations allow laying a cable from the meter of the house to the parking space. In this way, the electrical supply of the charging point and the floor will be shared and everything will appear on the same bill. With this system it will not be necessary to register a new supply point.

Of course, you must take into account that depending on the contracted power and the type of recharging point to be installed, perhaps it is necessary to increase the contracted power to avoid power outages. It is something that you will have to assess when calculating the power you need.


The other option is that maybe the parking space, the garage, is not in the same building where the floor is. In this case and unlike the previous one, it will be necessary to first request permission from the community of owners and have them approve the possibility of connecting a recharging point to the common areas in a neighborhood meeting.

Is about install a secondary meter linked to the garage supply point, which gives light to the common areas. Here it will be the community that will then pass on the corresponding expense to the charger that we have associated with our charging point. In addition, you will be subject to the electricity supply rate that the community of neighbors has contracted.

A third option involves ask the distributor to install a new supply point that will be associated with another meter and therefore in the end we will have a new electricity bill only for the meter of the charging point. Compared to the previous option, in this case we can choose the rate you accept to charge your vehicle.

In both cases, the greatest difficulty is given by the distance between the meter and the parking space. The greater the distance, the more cost of the work to be carried out. This changes in modern buildings or at least the most recent ones, in which the aim is to guarantee the pre-installation in 100% of the parking spaces.

Single-family home charging point

Imagen Wallbox

In the case of residing in a single-family dwelling the process is simpler, but we must also bear in mind that it is not the most normal. Here we have more freedom to install the charger both outdoors and indoors. Everything is left to our choice.

If we have a private garage, we may already have a conventional plug available (schuko socket) that can be used to recharge the car. The problem with this system is the power limits imposed by the installation, which is usually limited to 10 A and about 2.3 kW of power. This translates into huge reload times.

However, the most appropriate and what the regulations say is install an exclusive circuit from the meter from the home to the location of the recharging point in order to improve the safety of the installation. It must be well dimensioned, with dedicated electrical protections and with charging points that can withstand the required intensity during the long periods of time that we are going to have the vehicle charging.

If the house is single-family, the possibilities are greater. We can install the charger indoors or outdoors, in which case we must have an installation capable of withstanding inclement weather and have adequate electrical protection. In addition, the power outlet or charger must be connected to the home’s electrical panel, also with dedicated protections.

if we want, we can mount a wall or wallbox charger. A type of device that allows you to have higher recharging powers and have options such as an integrated cable, dynamic power control… or even being able to control the charge from your mobile. Of course, these improvements and additions suppose a significant extra cost depending on the charger that we want to add.

Hired potency


In this point It is important that we take into account the power that we have contracted at home and the one we are going to need, since we will have to add the one needed by the new charging point since everything will be unified under the same bill. If you do not have enough power, you may be interested in increasing the contracted power or installing a charger that allows dynamic load management.

The usual thing is that the wallbox works with several powers ranging from 3.7kW to 22kW (7.4kW and 11kW remain in between). These systems work with alternating current (AC), nothing to do with fast charging systems that use direct current (DC). The 3.7kW and 7.4kW charging points are connected in single phase, while the 11kW and 22kW chargers are connected in three phase.

To calculate the power that we are going to need, we are going to take into account the same system that we use to know how much we are going to require on the floor. To do this, just determine the number of appliances we can use at the same time without the leads jumping, including the installation of the charging point. Power is measured in kilowatts (kW).

The advantage at this point is that the delivery power used by the charging points can be limited, so that a limitation can be achieved that adjusts to the contracted power that the client has without the latter having to increase it. In addition, another factor to take into account is that in many cases the car is charged at night and thus benefit from time discrimination and, incidentally, avoid an increase in the contracted power.

The important thing and what you must take into account is that the contracted power must be higher than the one you are going to use, car charger included, to prevent the leads from jumping

If at this point you decide that you want to increase the contracted power, you should know that this step has a cost based on two variable price conceptsas is the right of access and extension and that go up or down depending on how much you want to increase the power. The third, the down payment, is a fixed cost about 10 euros.

Grants and subsidies


In general and as a conclusion, we can determine that installing a charging point at home, in any of the slopes seen, can vary in price significantly due to two factors: depending on whether more or less work has to be done and depending on whether or not a wallbox is installed (and which model is chosen).

In full 2022 is in force on Plan Moves IIIa plan that, together with help to acquire an electric car, also represents an incentive for the installation of charging points at the subsidize up to 70% of the cost of said recharging points, whether you are an individual or if the interested party is your community of neighbors. A discount that reaches 80% in towns with less than 5,000 inhabitants.

“The eligible recharging infrastructure, through the direct acquisition modality, may be both public and private access. In addition, in the case of communities of owners, the pre-installation of electricity and communications service to provide recharging will be eligible. intelligent to linked recharging of electric vehicles.”

However, It is best to ask an electrical installer in the area since each case is different, taking into account that the deadline to opt for the Moves III Plan is December 31, 2023

Inside Image | Chuttersnap (Unsplash)
Cover Image | Ernest Ojeh (Unsplash)

Source: Xataka Smart Home by

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