General questions about PV systems
What is a photovoltaic (PV) system?
A photovoltaic system converts sunlight directly into electrical energy. It consists of solar modules, an inverter and often also a battery storage unit.
How do PV systems work?
Solar modules consist of many solar cells that absorb sunlight and convert it into direct current. The inverter converts this direct current into alternating current, which is used in the household or fed into the grid.
How long does it take to install a PV system?
On average, the installation of a photovoltaic system takes 2-3 days for small systems, 4-5 days for medium-sized systems and 1-2 weeks for large systems.
What preparations are necessary for the installation?
Before installation, the roof should be checked for its load-bearing capacity. It is also important to obtain any building permits and ensure that no shadows will affect the modules.
What does a PV system cost?
The costs vary depending on the size and type of system. On average, the costs for a private PV system are between 5,000 and 15,000 euros.
Are there subsidies or grants for PV systems?
Yes, there are various funding programs at federal, state and municipal level. In addition, subsidies from the KfW Bank or feed-in tariffs can be claimed.
How often does a PV system need to be maintained?
Yes, there are various funding programs at federal, state and municipal level. In addition, subsidies from the KfW Bank or feed-in tariffs can be claimed.
What should I do if my PV system is not working properly?
A certified technician should be contacted in the event of malfunctions. Many installers also offer maintenance contracts that include regular inspections and repairs.
What guarantee do you offer on PV systems?
We offer a product guarantee of 12 years on solar modules and a performance guarantee of 25 years.
How do I contact customer support?
Our customer support is available to you by telephone on +41 79 890 07 07 and by e-mail at Info@pvinnovation.eu. Our team will be happy to help you.
What environmental benefits do PV systems offer?
PV systems produce clean, renewable energy and significantly reduce CO₂ emissions. They help to reduce dependence on fossil fuels and promote sustainability.
How much energy can I save with a PV system?
This depends on the size of the system, the location and the energy consumption. However, an average PV system can cover up to 70% of a household's annual electricity requirements.
General questions about IREX Energy
What is IREX Energy?
IREX Energy is a leading Vietnamese company that offers PV modules and solar cells of international standard and supplies both national and global partners.
How long has IREX been around?
IREX was founded in 2012 and is based on 45 years of research and development.
What products does IREX offer?
IREX specializes in the manufacture and sale of PV modules.
What are the advantages of PV modules from IREX?
Our PV modules are efficient, durable and offer high performance with low installation and maintenance costs.
Are the PV modules suitable for different installations?
Yes, IREX PV modules are suitable for various applications such as residential, commercial and industrial installations.