Photovoltaic Panel Installation Guide
Below is a detailed outline of how our fitters install the Solar PV System, but if you would prefer to speak to someone over the phone about the process, please feel free to ring 033 33 55 1000.
What Is Needed To Install A Solar PV Panel?
Solar PV panels: These are panels which weigh anything between 13-25kg, and use a sturdy aluminium casing to keep all of the individual solar cells safe. By having the PV cells in this, it means the cells can be clamped or screwed into things without trouble.
Roof Anchors: Steel or aluminium anchors (shape dependent on roof) that form the base of the mounting system. Only the very tail of this is visible by the time installation is complete, and this is what is attached to the aluminium panel.
Mounting frame: The panels sit directly on these, which ensure that there is no movement. This is guaranteed with the specially crafted locking system, and is made with sturdy aluminium bars and tightened with regular bolts.
Clamps: These attach the panels to the frame. There are two different types of clamps, named 'end-clamps' and 'mid-clamps.' The former are located at the ends of the paneling and help to secure individual panels, while the 'mid-clamps' are located between panels to hold them together and to make sure there is an equal distance between them. At least four clamps are used with every panel to ensure absolute safety.
Installation Of The Solar PV
One thing it's important to note at this stage of the process is that it's very rare a roof is entirely 'straight,' and it's highly unlikely the ridge, ground and eaves run completely parallel with each other. However, this is taken into account, and our expert teams aim to make every Solar PV installation as aesthetically pleasing as possible, which is normally when the panels run parallel to the nearest possible edge.
The first stage of installation is putting up some scaffolding. This will be erected by experts from the local area, and dependent on the scale of the project, this will usually happen before, or on the first day of the actual installation of the Solar PV. This means that when the workmen are on the roof, Health and Safety regulations are complied with, and on some occasions if the roof is slippery, ladders and harnesses are used on the actual roof to ensure safety.
During the free site survey of your house, our surveyor will photograph and record data showing where the panels will sit. It's vital to the process that the roof anchors are positioned in the right places to make sure the paneling can be installed correctly. The rafters are then located, to which the anchors will be screwed. Measurements are then recorded to ensure that the panel can sit straight, while the anchors are placed on top of the tiles on which they will be positioned. They are then connected to the roof; at first a tile is removed while the anchor goes on, and then put back again, to make sure that the roof is watertight. The type of anchor that will be used is determined in the site survey to leave no room for error.
The aluminium bars which form the frame are then put into the anchors and secured in place. The bars are checked to be straight and parallel with the other bars. This is important to make sure the panel is aesthetically pleasing. Even if the frame is longer than the supplied aluminium bars, they can be spliced together to make up the difference meaning this is no problem.
With the bars now being in place, the panel itself can now be brought to the roof, and will be attached with no less than four clamps to ensure sturdiness. Sometimes extra clamps are used to make sure the rows are completely parallel. The panels are either laid out row by row or column by column dependent on the situation.
The panels are then wired by our installers, and this is a non-complicated part of the procedure, in which things such as the voltage, power and amperage determine how it is connected. For example, in the case of smaller set-ups, an individual series can be connected to one inverter, whereas sometimes the numbers of series and inverters can vary.
When all the top rows are in place, the final bottom rows of paneling can be inserted and connected. This part is why the earlier stages, and fixing the frames perfectly is important, as that makes this easier and makes everything look perfectly aligned. With this being considered, payment is only taken if and when the customer is fully happy with how the panel looks.
After this, the concluding wiring stages are wrapped up, with the Direct Current power from the panel sent into to the property, so the inverter can turn it into the usable AC product. Sometimes, this wire is put under the eaves, or in other instances, a very small hole is put in the wall where the wire enters the property. This marks the completion of the installation on your Solar PV.