Solar PV Calculator

Calculate online the price of installing solar panels

Answer to a few simple questions in less than a minute, to immediately receive for free data such as the potential savings, the number of solar panels you need or the return on investment of the photovoltaic system.

This free solar calculator is a tool to estimate the solar power generation potential at a specific location. However, it is important to keep in mind that solar calculators only provide estimates and approximate results, as the actual amount of energy generated by a PV system can vary due to various factors, such as the presence of shading on the roof, weather conditions or the efficiency of the installed system.

How does our solar PV calculator work?

With our solar power calculator, we can estimate the solar generation potential of your home by asking a few questions to find out a little more about your needs and the characteristics of your home.

Consumption habits: In order to make the estimate, we need to know whether your consumption habits are generally day or night.

Place of installation: It is important to know whether the photovoltaic installation will be in a block of flats or in a single-family house.

Roof shape: The characteristics of the roof are essential for the study. The roof can be pyramidal, single-pitched, pitched, gabled or flat.

Number of people in the household: The number of people living in the house where the photovoltaic system will be installed is essential to know the approximate consumption in your home.

Address of the home: The geographical location of the home is a key point for estimating the number of panels needed.

With this data, we can make an estimate of the photovoltaic system you need for your home, calculating the average annual production, the average annual savings and the number of panels you need for your consumption.

What information does the solar panel calculator provide?

If you are considering installing a PV system on your home, it is advisable to use a solar power estimator or calculator to get an overview of your home’s energy generation and savings potential. This will give you an approximate idea of what the installation will look like.

To obtain an accurate and detailed evaluation, it is essential to carry out a personalised study, analysing your annual consumption, the particular characteristics of your roof, the geographical location of your home and your consumption habits.

How many solar panels do I need to be self-sufficient?

In order to define the number of solar panels we need to be self-sufficient, several factors must be taken into account. On the one hand, it is important to consider the characteristics of our roof, such as slope and orientation. The average number of hours of sunshine is also a variable to take into account, as it changes depending on the geographical area.

Another of the variables to be able to carry out an installation of these characteristics is the power of the solar panels that we install and the energy consumption that we usually have in our home. Taking all these factors into account, a personalised system can be designed and the number of panels we need to be self-sufficient in our home can be determined.

How many kW or solar panels to power a house?

The kWh that a house spends per month is a difficult figure to calculate, as it depends on the size of the house, the type of electrical appliances used and the number of people living in it. According to data from the IDAE (Institute for Energy Diversification and Saving), a house in Spain spends an average of 270 kWh per month, which means 3272 kWh per year.