Methodology of System Designing
Our site engineer along with a site surveyor conduct a site assessment during which load data is collected i.e.
- How much load (appliances) client need to run on solar
- Duration of that load.
Then a detailed survey of roof/ground is conducted where PV modules are expected to be installed. All the dimensions and especially south direction is taken during this survey.
The data is collected on specially developed sheets which are then submitted to our design engineer.
Design engineer sizes the system i.e. calculates the quantity of PV modules, Inverter, Charge controllers and batteries required
to run the mentioned load. System sizing is done on our designed software which we have developed after practical R & D.
After the sizing, design engineer draw the layout of the roof/ground and places the panels on it. This layout and panel placement drawing is done on ACAD. We also evaluate the shading of any obstacle or construction on roof/ground.
On-grid proposal consist of following key points and this proposal is auto generated from our software named SOLGREEN
- Solar PV Modules
- System sizing
- Annual Energy Production
- Payback period
Photovoltaic (PV) panels for solar generation are installed on Iron Structures also which have different heights at roof/ground. So these custom iron structure designs are also provided according to site condition to avoid following:
- Shading concern
- Load distribution on roof
- Consume maximum area for installation
These kind of installation are prone to wind load at high wind velocities. So these structures are designed and analyzed on software named ANSYS Mechanical APDL. The stresses and its effects on the structures are calculated with the help of this software. The software basically consist of two parts:
- Computational fluid dynamics(CFD)
- Finite element analysis (FEA)
Hence the wind load is calculated using commercially available CFD or Ansys Fluent. These loads along with the weight of the PV panels as well as the structure were then modeled and simulated on the mounting structure in FEA. The structure are placed when found safe under static loading with a considerable amount of factor safety.