A detailed techno economic study was undertaken to minimise the cost of an existing ground mounted fixed tilt photovoltaic system. The costs of all elements and connections in conjunction with their manufacturing and the installation was considered. An overall cost minimum was found by optimising the structural system, reducing material, part count and spans as well as easing installation. The T-rack system features also asymmetric aluminium sections to minimise costs.
The project resulted in a modular system able to vary spans depending on the load conditions, and able to deal with different module sizes and orientations. The system has been utilised in numerous commercial projects.