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Calculate power
HOW TO CALCULATE THE POWER?
There are different ways to calculate the recommended electrical power for a home or business. Since 2018 it is possible to contract the electrical power in sections of 0.1 kW in 0.1 kW. If you need to change the electrical power that you have contracted, you have all the information in the previous link.
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All the information to calculate the electrical power that you must hire for your home or business.

Hire the recommended electric power to avoid paying more on your electricity bill.

Prices and requirements to change the electrical power.
What electrical power do I have to hire for my apartment?
Deciding what electrical power to hire for a flat is a decision that can help us save on electricity bills.
When choosing which power of light to hire, we can face the following situations:
Contracted power less than necessary:
On the one hand, we can have a contractelectrical power less than what we need.

In this case, the Power Control Switch (ICP) will trip and cut off the power supply for a short time.

This is what we know as "jumping the leads".
Contracted power greater than what we need:
On the other hand, the electrical power that we have contracted may be higher than what we really need. On this occasion, the ICP will not skip but we will pay more in our electricity bill for the fixed term or power.
Having said that, any consumer can decide to change the contracted power at any time.

For this you will have to contact the light marketer.
It is very important to bear in mind that if we decide to change the electrical power, either to raise or lower it, We will not be able to change it again until after 12 months.
Below, you can check the approximate electrical power of the most common appliances in your apartment:
What power do household appliances need in a flat?
Appliance Approximate power
Microwave 1 kilowatt

Television 0.5 kilowatts
Refrigerator 0.5 kilowatts

Washer 1.5 kW

2 kilowatt oven

Glass ceramic 1.5 kilowatts
Dishwasher 2 kilowatts

Toaster 0.5 kw

Electric heating 2 kilowatts
In the following table you can check the approximate powers in common homes according to the size and residents who live in it:
Recommended power according to size and residents.
House size Residents Approximate power

50-80 m2 1/2 people 3.45 - 4.6 kilowatts
90-110 m2 3/4 people 4.6 - 5.75 kilowatts
100-130 m2 4/6 people 5.75 - 6.9 kilowatts
What is electrical power?
The electrical power determines the amount of electrical appliances that we can connect to the network simultaneously.

When hiring an electricity rate, you have to choose an electrical power that meets the needs of the users.
Electric power is reflected in the electricity bill under the concept of billing by power, billed power or power term and is measured in Kilowatts (kW).

This concept reflects the fixed amount that must be paid each month for the kilowatts (kW) that we have contracted, that is, the fixed part that must be paid every month regardless of the consumption made.
Contracting the necessary electrical power can help the user to pay less on their bills each month and will avoid possible momentary power outages due to exceeding the contracted power.
In Spain, the average electrical power is between 3.45 kW and 4.6 kW.
How to calculate the electrical power that I should hire?
It is very important to know what is the recommended electrical power for my home or business. When calculating the electrical power to be contracted, the following aspects must be taken into account:
How much consumption each appliance generates and how many are we going to connect at the same time.
Number of people residing in the home.
Dimensions of the property.
Know if we have a single-phase or three-phase installation.
The contracted power must be less than the maximum allowed power indicated in the electrical bulletin.

If the client needs to contract a power greater than this, he will have to request a new bulletin and make the pertinent modifications to the electrical installation.
There are different methods to calculate the light power that best suits personal needs at each supply point:
Hire a licensed electrician to perform an electrical analysis based on the home appliances.
Use a power calculator.

Some companies make tools available to their customers that help calculate the recommended electrical power.
Measure kilowatts (kW) manually.
It is possible to estimate the kilowatts of each appliance manually, although it is often a long and tedious process that few people carry out.

It is the least recommended option.
To calculate the electrical power that my home needs, it is important to take into account the simultaneity factor that indicates the number of times that the electrical appliances can be connected at the same time.

The maximum value of this index is 1, it would suppose that all the devices are working at the same time all day.

Normally, a value of 0.5 is used for intensive use of household appliances and a value of 0.25 if they are used more sporadically.
Formula of electric power
The recommended electrical power can be calculated by adding the kilowatts (kW) of power that each appliance has:
Television (0.5 kW) Vitroceramic (1.5 kW) Washing Machine (1.5 kW) Oven (2 kW) Dishwasher (2 kW) Refrigerator (0.5 kW) Microwave (1 kW) Heating (2 kW) = 11 kW.
To the total kW, the simultaneity factor of 0.25 must be applied and to the final result add 1 kW to calculate the minimum contracted power:
Total kW (11 kW) * 0.25 1 kW = 3.75 kW
Formula to calculate the price of the contracted power
The price of the contracted power can be consulted in each of the invoices issued in the "Summary of the invoice" or "Details of the invoice" section under the concept of contracted power or invoiced power.
ANDThe amount of power is conditioned by the amount of kilowatts (kW) contracted and the price per kilowatt that the company with which we have contracted our electricity rate has set.
Formula to calculate the price of electric power Example:

TPower term = contracted kilowatts (3.45 kW) * Kilowatt price (€ 0.1228 / kW) * billing days (31 days) = € 13.13
In ESME ENERGY We can carry out a study of your bill and help you reduce the contracted power to pay less on your bills. You can contact us through the following phone: 666 24 24 20
New sections of electrical power
Once we have seen the importance of hiring the recommended electrical power and how to calculate it, it is also important to know that the light power is defined by the type of installation that each user has.
In this way, there are two types of electrical installations that users can have at home, a single-phase installation or a three-phase installation.
A single-phase installation It is one that conducts energy by a single electric current.
A three-phase installation It is the one that distributes the energy by three electric currents that will all have the same frequency.
Therefore, when contracting the light with to In any light marketer it is important to take into account the type of installation that the home has since it will determine the electrical power that we can hire depending on the section in which we are.
In addition, it is also important to know that when we are going to choose an electrical power to contract, we must choose a normalized power.

Since 2006, all electric powers are standardized and are the same for all electricity companies.

Since October 2018, as a result of Royal Decree 1164/2001, it will not be necessary to contract a standardized power, but the client may contract the section of electrical power in multiples of 0.1kW if it does not exceed 15kW, that is, they can contract the electrical power that best suits your needs.
New construction homes usually have a single phase installation. You can check if you have a single-phase or three-phase installation in the electrical bulletin.
How much does it cost to change the contracted power?
When changing the electrical power we must pay an amount that will appear reflected in the next electricity bill issued.
If you want to change the contracted power and the installation is more than 20 years old, it will be necessary to request the electrical bulletin in order to make the modification.
Below, you can see the prices involved in increasing or decreasing the electrical power.
How much does it cost to increase the contracted electrical power?
When increasing the contracted power, the corresponding extension and access rights must be paid for each kilowatt of power to be increased.

The other concept of compulsory payment is the coupling rights, the latter are paid both to increase the power and to reduce it.
Price for increasing the contracted power
Extension rights: € 17.37 per kW VAT
Access rights: € 19.70 per kW VAT
Down payment fees: € 9.04 VAT
What is the price for reducing the contracted power?
To reduce the contracted power, we only have to pay the coupling fees that represent a total of € 9.40 VAT.

This amount will be reflected in the next electricity bill
Price for reducing the contracted power
Down payment fees: € 9.04 VAT
Necessary requirements to change the electrical power
To change the electrical power, either to increase or decrease it, the user must contact the electricity marketer (at ESME ENERGY, we do all these procedures, totally free), and must provide the following documentation.
Name and surname of the owner of the electricity supply.
Exact address of the point of supply.
Current contracted power and required electrical power.
Universal Code of Supply Point (CUPS).
Holder's bank account.

Sign the annex of the Marketer.
How long does it take to change the electrical power?
Carrying out the change of contracted electrical power is not an immediate process but takes between 15 and 20 business days to become effective.

This is because a technician has to go to the home to modify the ICP once the distributor has accepted the request.
It is possible that the client receives a last invoice with the electric power previously contracted.

The receipt corresponding to the next billing period will already have the new electrical power together with the relevant expenses.

LIGHT PRICE
The price of electricity or price per kilowatt hour (kWh) determines what a user has to pay for the energy consumed during a billing period.

Next we analyze the price of electricity set by the large electricity companies.
What is the kilowatt hour (kWh) of light?
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