Frequently Asked Questions (FAQ)
How do solar panels work?
Solar panels are made up of photovoltaic cells that convert solar energy into electricity. This process is possible thanks to the photovoltaic effect of the cells, which are doped silicon structures, creating an electric current when exposed to solar photons. The panels convert solar energy into direct current (DC), which is then transformed into alternating current (AC) by an inverter, making it usable in domestic and business applications.
What are the advantages of solar power generation?
In addition to significantly reducing electricity costs, solar energy is a clean and renewable source, contributing to reducing grid energy consumption and, consequently, its carbon footprint.
What is the benefit and return on investment in solar panels?
Installing solar panels can significantly reduce your electricity bill, with savings of up to 90%. The return on investment varies, but is typically between 3 and 10 years, considering the long lifespan of the panels, which is over 25 years.
How many solar panels do I need for my home or business?
The number of solar panels needed depends on several factors, such as available space, electricity consumption, orientation of the panels, incidence of shadows, and the type of inverter.
Why is it important to install a battery along with solar panels?
The main advantage of installing a battery in photovoltaic systems is the ability to store excess solar energy generated during the day, for use in periods without sunlight, such as at night or on cloudy days. This increases the efficiency and independence of your solar system, ensuring that you maximize the use of the energy produced by your panels and further reduce your dependence on the electricity grid.
Is it possible to sell the excess energy produced by my solar panels to the grid?
Yes, it is possible and economically advantageous to sell the surplus solar energy generated by your photovoltaic system to the electricity grid. This not only contributes to greater savings on energy bills, but also supports energy sustainability by injecting clean energy into the grid.
How are solar panels maintained?
Maintenance is minimal, usually involving occasional cleaning with water and a brush to keep the panels at peak efficiency.
Do solar panels work in any weather conditions?
Yes, solar panels do not require direct sunlight to function efficiently. They are capable of generating energy even on cloudy days, making Portugal an ideal location due to its high annual solar incidence.
geral@svetsolar.pt
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