Photovoltaics
The sun shines above our heads every month of the year, delivering thermal energy to the various surfaces that surround us. Including our roofs. Why shouldn’t we use this free energy for our own needs? On the one hand, we benefit from free electricity, and on the other hand, we contribute to the protection of our common good, the environment.
How does a photovoltaic system work? That is, the conversion of sunlight into electrical energy.How does a photovoltaic system work? That is, the conversion of sunlight into electrical energy.
To make the most of the sun’s thermal energy on your roof, veranda or outbuilding, you need to install photovoltaic panels that „capture” the rays and convert them into electricity. At Ferro Wings, we also manufacture ground-mounted photovoltaic systems and CarPorts with photovoltaic panels.
This is possible thanks to a special technology for building panels consisting of photovoltaic cells. The cells are made of juxtaposed sheets of silicon. It should be added here that monocrystalline panels have the best efficiency. When these panels touch each other, electrical charges are generated under the influence of solar radiation.
There are two components responsible for dissipating the electrical charge. The first is the bottom of the cell, which consists of a metal shell. The second is the top of the photovoltaic cell, which consists of a metal grid. It should be remembered that at this stage we are still dealing with direct current. To make the photovoltaic modules weatherproof, the cells are sealed in tight casings that can withstand hailstorms. In Ferro Wings’ offer you will find only products of the highest quality, thanks to which the guarantee for the assembled panels is up to 30 years for the linear production and even 25 years for the panel structure!
Photovoltaics for the house
Photovoltaics for companies
Photovoltaics for agriculture
The essence of photovoltaics, i.e. the conversion of direct current into alternating current
Nowadays, much of the electrical equipment we use in our homes is designed to run on alternating current. However, as mentioned above, photovoltaic panels generate direct current. To convert direct current into alternating current, you need to equip the photovoltaic system with an inverter (often called an inverter). The inverter not only converts the energy generated by the panels into alternating current at the appropriate frequency, it is also the brain of our entire power plant. Only the purchase of a high-quality inverter together with power optimisers makes our system a Smart Photovoltaic System! Learn more about the FerroWings smart photovoltaic system by clicking here! Another device that enables the management of electricity consumption and generation is the Smart Meter, a special sub-meter for photovoltaic systems. Please also note that any installation over 6.5 kWp must be equipped with fire protection for safety reasons.
Solar power plant planning and free advice
The effective use of photovoltaic panels is also a professionally executed project of the entire installation. Apart from such issues as the angle of inclination of the roof surface and the location of the building in a particular compass direction, it is also important to prepare the person responsible for developing the investment. The specialists at Ferro Wings guarantee experience, knowledge and the necessary know-how in the electrical sector and renewable energy sources.
What about the surplus electricity generated by photovoltaics?
Part of the electricity generated during the day is used to run the household. The surplus is paid to the electricity company by connecting our solar power plant to the existing plant and replacing the meter with a two-way meter. In the process, the investor does not have to worry about any formalities, because all documents and necessary applications are prepared by FerroWings specialists! Our surplus energy is used when we draw electricity from the grid, e.g. at night.
How long does it take to install a photovoltaic system?
The duration of the photovoltaic installation by a specialised company is usually between 1 and 3 days. This depends on the area in which the system is to be erected and the complexity of the construction.
What factors influence a micro photovoltaic system, its price and its design?
The roof pitch and the orientation of the panels to the sun play an important role. South-facing panels with an angle of inclination of 35 degrees are the optimal solution. An inclination range of 30 to 60 degrees is also very favourable for a photovoltaic system. Any more demanding design, e.g. due to the need to install cantilevers because of unfavourable solar radiation, naturally means a certain amount of extra work.
Photovoltaics on the parapet - i.e. on which elements will the photovoltaics be additionally mounted?
The most common place to see photovoltaic panels is on the roof, but there is also the option of mounting them on fences, parapets of terraces or balconies, on other structures or even directly on the ground.
The most important components you need to build your own photovoltaic system
The photovoltaic modules are of course the dominant element in the composition of a system. The heart of any photovoltaic system is an inverter, also called an inverter. This device converts the direct current into the alternating current that is used directly in our households. Each installation must also have a suitable protection and earthing system. Depending on the chosen mode of operation – grid-connected or off-grid – we also need appropriate equipment:
– a bidirectional meter for energy input and output and a connection to the power grid
– for the grid-connected system; these elements are provided by the energy supplier as part of the prosumer contract;;
– A battery with charge controller for the off-grid system (no connection to the mains, full energy independence).
The "heart" of photovoltaics, the inverter. What is there to know about it?
The choice of inverter also depends on the operating mode selected. Grid-connected systems use inverters that offer the possibility of transmitting power to the regional grid. Off-grid inverters are stand-alone inverters that allow power to be supplied to the devices directly within the system; there is no possibility of transmitting power to the outside.
The inverters, also called inverters, also differ in size. We connect so-called micro-inverters to a single panel. String inverters are used for several or more panels – which is usually the case for single-family homes. If it is a larger photovoltaic park, the choice falls on central inverters.
Translated with www.DeepL.com/Translator (free version)
Is maintenance of the photovoltaic modules necessary? How often should it be carried out and what effect does it have on the efficiency of the photovoltaics?
In this case, this installation has a great advantage. It is really low-maintenance. Of course, it is worthwhile to have the entire system serviced, but this can be done relatively rarely. The maintenance of the photovoltaic modules is practically limited to cleaning; in case of heavy soiling, care should also be taken that no leaves or excess snow accumulate on them. In addition, the inverter – as an electrical device – should be checked for its technical condition every few years.
The popular grid-connected photovoltaic system - what costs can be associated with its installation?
In the case of micro photovoltaic systems for households, all installation costs are borne by the grid operator – this is stipulated in the prosumer contract. In this case, no connection fees are incurred. The costs for the two-way meter mentioned above are borne by the utility company.
What is the procedure for applying for a grid connection for a photovoltaic micro system?
It is a straightforward procedure and can be carried out in a few steps, often online, via the electricity supplier’s website, for example in the following order
– Download the form entitled: Application for connection of a micro installation;
– attach a plan of the electrical installation of the unit drawn up by an approved installer
– Attachment of the technical documentation of the installation;
– Confirmation of certification of the installation, compliance with NC RfG standards.