Where can a photovoltaic installation be installed?
While pitched roof installations are most often seen, this is not the only possible installation location. The panels can be installed on buildings, e.g. on the roof, flat roof (flat roof), facade and on the ground. Installations on the ground and a flat roof can be both anchored in the ground and laid in a ballast (load) system.
On what type of roofing can photovoltaic panels be attached?
System solutions dedicated to all the most popular types of roofing are available on the market - for a sloped roof, flat roof and free-standing systems. Professional assembly systems ensure failure-free, tightness, stability and safety of mounting the substructure, and thus durability of the entire installation.
How long does the assembly take? Will it damage my roof?
The duration of the installation depends on the size of the installation, but most installations for single-family residential buildings last one day. The panels are installed with the use of dedicated assembly systems, they do not damage the roofing or affect the tightness of the roof.
What are the types of panels and how do they differ?
The most popular panels are monocrystalline and polycrystalline panels. Polycrystalline ones are those in many shades of blue with a visible, irregular grid. Monocrystalline ones are single-colour, dark blue or black, with a texture equal to a grid of squares. They differ in the structure of silicon used in the modules, but in most cases, with the same surface area, monocrystalline panels will have more power.
How much do solar panels weigh? What is the size? Does the price matter?
Most of the panels are rectangular, measuring approximately 1 x 1.7 m and weighing approximately 20 kg. Is it worth paying more for the product? All panels available on the European market are characterized by high aesthetics, efficiency and failure-free operation. However, a higher price usually means better technical parameters - a panel of the same size has more power, a longer warranty or a nicer finish.
Are photovoltaic panels resistant to external factors?
The installed panels are resistant to wind, rain, frost, temperature changes, snow and hail. The tempered glass in an aluminium frame provides resistance to external factors and weather conditions, guaranteed by the manufacturer. In our climate, panels do not require washing, cleaning or snow removal.
Do panels, devices and accessories have a warranty?
Photovoltaic panels have a 10-year product warranty and 25-year guaranteed production capacity (guarantee of yield, efficiency). Inverters (inverters) have a 5-year manufacturer's warranty. Additionally, on our projects, we provide a 5-year warranty for the assembly of installation parts.
What does the performance guarantee of photovoltaic panels mean?
Panel manufacturers, in addition to the standard product warranty of 10 years, also offer a performance guarantee (yield, production). This is a multi-level guarantee: the manufacturer guarantees that after 10 years the power of the installation will not be lower than 90% of the nominal factory power, and after 25 years - 80%. These values may be higher, they vary depending on the manufacturer.
How much space does the installation take up inside the building?
In addition to the photovoltaic panels, the installation consists of an inverter, security and wiring. Indoor and weatherproof inverters are available. Usually, the inverter is mounted on the wall, with two security boxes next to it. The inverter, depending on the size of the installation, has dimensions similar to a small suitcase on wheels and requires approx. 30 cm of assembly clearance on all sides. The whole thing does not take up much space and will fit on the wall of the garage or boiler room.
What is the cable routing to the installation?
In existing buildings, the cable connection between the roof and the inverter is carried out in the attic layers, ventilation risers or facade insulation. Then the cables between the boxes, inverter and switchgear are led in cable trays or wall grooves.
I'm building a house, can I prepare somehow?
Installation does not require any special preparation before assembly. Completed roofing material is required to fix the panels to the roof. To make the wiring invisible after execution, you can prepare grooves in the walls or spread the wires before plastering.