Solar Panel Installation

Solar Panel Installation is the most critical process which must be followed according to plan chalked out for installing solar panels and other required equipments.

In order to install solar panels experienced & knowledgeable solar panel installers are needed. Coupled with the Knowledge & know how they complete the job according to the plan. Their Experience helps to highlight current and future problems which may arise during & after the installation job is completed.

There are a certain number of steps which are normally involved during any particular solar panel installation.

Civil Works

Civil Works is nothing but set up of basic infrastructure done before the project of installing solar panels begins.

For Rooftop based projects little or no civil works are required. Many times you may be needed to make additional metal frame work for fixing the solar panels. The civil work needed may be limited to trenching and drilling. Both the activities need to be done for laying & passing cables properly.

Plenty of Civil Work is required for ground based solar panel installations. The civil works required include leveling of terrain, building access roads, trenches for cabling. Foundation works are required for firmly anchoring the solar panels.

solar panel installation
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Mechanical Works

Once the Civil Works are completed, Mechanical works commence at site. Mechanical installations are required for properly mounting the solar panels and according to the required tilt angles.

The structures required for installing solar panels can be of galvanized steel, hot galvanized steel or anodized aluminum. Their costs vary accordingly as each has a specific characteristics which may depend upon the project type.

In case of fixed installations the panels can be fitted in a tilt or fixed to the roof itself.

Roof Metal Anchors are needed for fixing the panels. Two commonly used options are Direct to purlins anchorage & specially designed anchors which can be fixed to the roof directly. But before this is carried out factors like roof safety, roof type and sealing necessities must be taken into account.

Ground Anchors are used for mounting structures on flat terrain, they cannot be used in rocky terrain. The average length of the anchor is 1 to 1.6 meters. Using them will surely help if dismounting is needed.

Concrete foundations need to be made in order to provide a strong base to the installations. They can be either under the ground or above the ground. These foundations require flat terrain. Dismounting becomes easy if they are above the ground.

Electrical Works

The cables used for solar panel installation are usually provided by the panel manufacturer. A check with the solar panel manufacturer will clear this doubt.

The cables used are pre fitted with fast connectors, these connectors speed up the installation process. Cables usually are 4mm, but they may differ according to the solar panel specifications.

Cabling can be done either in good quality casing capping or high quality tubular conduits. Installing cables in trays greatly simplifies the mounting & helps in maintenance. Indoor cabling can be done in simple plastic trays using pvc flame retardant cables will suffice.

For a ground based solar panel installation the cables need to be placed in cable trenches. Optimal planning of the connections is required as cable trenches can be long. The space requirements for the cable, extra space for pipe line, manholes have to be planned accordingly to optimize the installation time of cables.

Types Connection housing will be required depending on the location of the connections made. External connections must be housed in IP 65 enclosures whereas nominal IP 21 enclosures will be sufficient.

Earthing is necessary in the electrical works, some of the parts which need to be properly earthed are

  • PV Panel Frames
  • Structure
  • Metallic Cable Trays
  • Metal elements in electrical cabinets
  • Solar Inverters

Small systems will require a simple earthing system which includes 2 to 3 earthing pegs. Number of pegs will depend on soil resistivity.

Larger systems will require earth mat, pegs may be required based on the system generation capacity.

Critical Issues during Solar Panel Installation

Thermography needs to be done in order to determine the faults in solar panels. Doing so helps in identifying the faulty solar panels even before they are installed. This saves a lot of time and effort.

Visual, Electrical and Thermal Inspections in solar panels and the electrical components needs to be done.

Safety and labor risks need to be identified. The work needs to be done by the proper skilled personnel alongwith the protective gear and tools required during works.

Key Points in Solar Panel Installation after Completion

The power output (AC) at the final output point of the plant or system.

Determine the performance of the system or plant under the “Standard Metering Conditions”. The current & voltage curves are plotted and compared with the standard curves from the manufacturer.

The determination of characteristics of the inverters which include its Efficiency and the Maximum Power Point Tracking performance.

Now my friend with all this installation information in mind you can make sure that your solar panel installation becomes a very smooth and easy process.

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