Photovoltaic (PV) Solar Panels Installation Guide

By | June 30, 2017


There are a few different stages involved in the installation of a Solar PV system. Solar Panels Sydney We have put together a step-by-step installation guide on the retrofit of a Solar PV Panel on-roof system, to help you understand how the process works, so you know what to expect.

There is more to a Solar PV system than just the roof panels there are a number of other components that make up the complete system. Our installation process is carried about by fully-trained and qualified professional installers, who have each carried out hundreds of installations. We want to ensure that your system is installed properly, for optimum performance, and visual appeal. Here is what you can expect during the installation of your system:

Scaffolding
Scaffolding will be erected around your property to reach the eaves of your roof – this will either happen before or during the morning of the first working day, depending on the size of the installation. The cost of the scaffolding will be included in your quote.

Positioning the Roof Anchors/ hooks
The measurements taken during our initial site assessment are checked by our installers, to mark out the position of the frame. The location of the rafters under the existing roof tiles are identified, to which the roof anchors are screwed in. Tiles are temporarily removed to allow the hooks to be screwed to the rafters, and are then replaced.

Attaching the mounting rails
Once all the roof hooks are in place, the rails and bars that make up the mounting frame are then fixed on to the anchors and fastened. Our installers will ensure each bar is straight and that all the bars are parallel to each other, so that the aesthetics of the system are tidy.

Installing the PV Panels
Once the mounting frame is complete, the Solar PV panels are clamped into place. Usually, each panel requires four clamps. Depending on the size and shape of your roof, the panels will be placed in portrait or landscape orientation.

Wiring the Panels
Panel wiring takes place as the panels are installed. Cables are tied securely to prevent cable chaffing over time. Smaller systems and system on a single roof face will be connected to a single inverter, while larger systems will need several inverters or inverters with more than one MPP tracker.

Final Wiring
Once all your panels have been installed the final stage is to connect the DC wiring from the panels to the electrics in your property. This can be done in several ways, e.g. running the wire under the eaves and directly into your loft, or through a small hole in the property wall.