Photovoltaic energy

Single-family homes

Photovoltaic Installations in Homes

At Proenergy Barcelona we are specialists in the installation of photovoltaic systems in single-family homes, optimising energy savings and reducing the carbon footprint. With our experience, we help households in Barcelona to take advantage of solar energy for a more sustainable future.

Renewable energies are clean and inexhaustible resources provided by nature. According to the European budget, it is estimated that, in 2030, 74% of electricity will come from renewable sources, and the objective for 2050 is for it to be 100%. Spain has the potential to become a benchmark for sustainable energies thanks to the 2,500 hours of sunshine per year that it has.

Although we have started later than in other countries around us, we are undoubtedly experiencing a real boom. And the fact is that producing the electricity we need is a profitable investment that brings tangible and intangible value to homes and industry, whether on a roof or on the roof of a warehouse, i.e., economic profitability and social recognition.

No time has ever been as favorable for its possible implementation as it is now, and there are several reasons for this:

Never from the different Administrations has electric self-consumption been promoted as much as it is now.

Never has there been greater public awareness of the disaster of the polluting footprint on the common home called Earth.

Never has the photovoltaic panel industry had a better efficiency/durability/price ratio.

It has only one drawback: it needs sunny physical space where to install the photovoltaic panels, either the roof of an industrial building, terraces, parking lots, gardens, lands, etc. The rest are advantages.

What is the performance of solar panels in summer and winter?

In Barcelona, solar panels offer constant performance throughout the year, both in summer and winter. That is, even if it's snowing outside, your panels continue to absorb light. Just like when we go skiing we put on sun protection, even on cloudy days, because there is a chance we will get sunburned, the same thing happens with photovoltaic panels.

In addition, the energy generated by a photovoltaic installation will also depend on how many solar panels you have on your roof.

According to the Red Eléctrica de España (REE), the kWh consumption that a home makes in a month is approximately 270 kWh, which would be equivalent to about 3,272 kWh/year.

Although we have said that a solar panel can never have zero performance, there are some factors that can vary the energy they generate.

  • The materials: like everything, the higher the quality of the photovoltaic panels, the better their efficiency will be and you will extend their lifespan. useful life. In addition, you can amortize this investment with the compensation of surpluses.
  • The inclination and angle of the roof: if your house faces south (azimuth angle 180º), it will capture the sun's rays better.

If it faces north, the installation can be done in another part of the house such as on the facade. Regarding the angle, the best is one that is between 30 and 40 degrees.

  • The climate: solar panels are designed to capture the maximum energy from the sun, however, meteorological factors can cause performance to vary. The ideal temperature is estimated to be 25ºC.
  • Geographic location: Spain is one of the countries with the highest number of hours of sunshine in Europe, but solar panels generate different energy depending on where they are located.
  • Maintenance: Once you have installed the solar panels on your roof, you should check them to clean them or replace parts that have deteriorated.

Is it profitable to install solar panels in places with cold climates?

Yes, the performance of solar panels in winter is still sufficient to supply a home since heat is not taken into account but light.

It is true that there is a decrease in their production of 30-40%, but they continue to work despite heavy rain or snowfall. For example, in Norway, although it is a cold country, there are many houses and buildings with photovoltaic panels.

Therefore, regardless of the area where you live, solar panels are a long-term investment and during the winter you will also be amortizing their cost.