Before Installing Photovoltaic Panels on roof it is necessary to understand How Much Space we Need, in order to verify in advance that an adequate surface is available for correct assembly of the modules and the structure. Let’s see specifically How to Obtain this Essential Data.
Dimensions of Photovoltaic Panels
Size of Photovoltaic System must necessarily be compatible with the available space, also considering the positioning of Inverter and other devices. In this way it is also possible to choose the most suitable modules, find right compromise between Size of Photovoltaic Panels and performance of the system.
Furthermore, we must also consider place of Installation of Photovoltaic Modules, as size varies depending on type of roof or other surfaces in which to Place Panels. Standard dimensions of Photovoltaic Panels for residential use are 1.60-1.70 meters long by 0.90-1.10 meters wide.
Obviously, efficiency of the modules must also be taken into account, as for same size a panel can have more or Less High Yield. This depends on numerous Factors, Including:
- Quality of Form
- Construction Materials
- Cell Technology
- Type of Panel
For Example, Polycrystalline Photovoltaic Module has length of approximately 1.60-1.70 meters, width of around 0.90-1.00 meters, and thickness of 3-4 cm, with Peak power of 230- 290 Watts Peak (Wp).
Monocrystalline Photovoltaic Panel, more efficient and performing than Polycrystalline Models, has length of 1.60-1.70 meters, a width of 1.00-1.10 meters, and thickness of 4-5 cm, with Power peak of 300-400 Watts Peak (Wp).
How Much Surface Area Do We Need For Our System?
Surface area occupied by Photovoltaic System depends above all on type of modules, the place of installation, and the size of the system.
For Example, While in pitched roofs Panels can be positioned closer together, in flat roof greater spacing is necessary, with approximately 40-50% more space to avoid shading between Panels.
In Any Case, it is possible to consider 9-10 m2 for each kW Installed for flat roofs, or approximately 6-7 m2 for Each kW Installed for pitched roofs. However, considering Type of Photovoltaic Panel, space occupied is approximately 5.7-7.2 m2 for each kW for Polycrystalline Modules and 4.1-5.5 m2 Per kW for Monocrystalline Modules. Now let’s look at some concrete Examples Together.
How Much Space Dose 3 KW Of Photovoltaic Take Up?
To Install 3 kW Photovoltaic System you need space of at least 27-30 m2 on Flat Roof, or approximately 18-21 m2 for Pitched Roof. To save space it is possible to opt for high-efficiency Monocrystalline Panels, also taking advantage of higher Efficiency and Lower number of modules, considering that with Monocrystalline 7-10 Panels are enough, while with Polycrystalline 10-13 Modules are Needed.
How Much Space Is Needed For 4 KW Photovoltaic System?
4 kW Photovoltaic System requires a space of approximately 36-40 m2 if the modules are installed on Flat Roof, while a space of 24-28 m2 is required with a Pitched Roof. With Monocrystalline Panels, 10 to 13 modules are needed, alternatively, 14-17 Polycrystalline Photovoltaic Panels are needed to obtain an Installed Power of 4 kW.
How Much Space Does 5 KW System Take Up?
The space occupied by 5 kW Photovoltaic System is approximately 30-35 m² on a pitched roof, or the footprint rises to 45-50 m² with a flat roof. The number of modules is 17-21 elements by choosing polycrystalline photovoltaic panels, while by Installing Monocrystalline Modules approximately 13-17 modules are needed.
How Many Square Meters Are Needed For 6 KW System?
6 kW Photovoltaic System, which produces on average around 8,000 kWh of electricity per year, requires a free space of 36-42 m2 with a pitched roof, otherwise, if the available surface area is Flat Roof the overall dimensions reach 54-60 m2. An Installed Power of 6 kW requires approximately 15-20 Monocrystalline Photovoltaic Panels or 20-26 Polycrystalline Photovoltaic Modules. Change your approach to Energy with the help of Italian Experts. We are here to guide you toward customized and sustainable Energy Solutions.