







Certificate no. MCS1058
Photovoltaic systems
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Renewables Ltd 2008,
All Rights Reserved.
APOLLO RENEWABLES LTD
Sustainable energy for this generation and the next
SUPPLY AND INSTALLATION OF SOLAR PHOTOVOLTAIC AND WIND TURBINE SYSTEMS
PV mounting options
PV systems are versatile in the fact that there are many different installation options including:
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More details on these mounting options are detailed below:
Retrofit installations
These are the most common type of installation for existing buildings. Fixings are made onto the roof structure, which an array mounting system is attached to. There are a wide range of different fixing options to cater for different roof coverings and constructions.
Integrated systems using standard or frameless modules
Integrated systems using standard sized modules or unframed modules (called PV laminates) are typically the cheapest way to install an integrated PV array. Modules or laminates are installed onto a number of mounting rails and flashings, and this combination provides a weatherproof covering to replace conventional roofing materials.
Integrated, using solar roof tiles
There are a number of smaller specific PV roof tiles which are available. Whereas these can give an aesthetically pleasing array, there are a couple of drawbacks. Firstly the tiles have a smaller power output, therefore more tiles are needed which increases the number of connections. Secondly they are typically more expensive as they are not as widely available as standard modules or laminates. If you would prefer a system with a particular PV tile, please contact us to see if it is a product we would supply and install.
Flat roofs using mounting frames or ballast trays
There are a couple of simplistic methods of installing photovoltaic modules onto a flat roof. Either a framework can be mounted fixed onto the roof itself or by using the Console method. Consoles are basically recycled plastic trays that are held in place by ballast, which the module are simply fixed onto. The benefit of this type of system is that it is not necessary to make penetrations into the roof to secure the array.
Freestanding systems
For clients who do not want to (or are unable to) fix an array to their building, a freestanding array can often be a viable option. This can either be a simple installation such as fixed onto a pergola or other structure, or a tracking system that constantly alters the direction of the array to face the sun to maximise the amount the system generates.
Glass-
Finally, glass-