The two main types of modules we use are 60 cell and 72 cell units. Each module is tested keeping the Canadian climate in mind. These modules have a Hail Safety Impact Velocity of 25mm @ 23m/s and the ability to sustain a Static Load of Wind/Snow @ 4000Pa/5400Pa. Their operating temperature ranges between -40c to 85c and have an efficiency rating of at least 97% of STC.
Module orientation is also of the utmost importance to the installation team. Installing modules in portrait is more time consuming than installing them in landscape on large ground mount systems. Keep this in mind if you have a deadline, or need to lower the cost for your project.