Fixed-Tilt Solar Rack Systems

Grengys is a professional manufacturer of solar mounting systems for over 17 years with a total installed capacity of 10GW plus.
Providing a wide range of customization options from ground mounting systems to rooftop mounting systems.OEM is available.

For more details,pls email:rukin@grengysolar.com

Photovoltaic mounting systems (also called solar module racking) are used to fix solar panels on surfaces like roofs, building facades, or the ground. These mounting systems generally enable retrofitting of solar panels on roofs or as part of the structure of the building. As the relative costs of solar photovoltaic (PV) modules has dropped, the costs of the racks have become more important and for small PV systems can be the most expensive material cost.This has caused an interest in small users deploying a DIY approach.Due to these trends, there has been an explosion of new racking trends. These include non-optimal orientations and tilt angles, new types of roof-mounts, ground mounts, canopies, building integrated, shading, vertical mounted and fencing systems.

Fixed-Tilt Solar Rack Systems are usually large, utility-scale photovoltaic power stations. The PV array consist of solar modules held in place by racks or frames that are attached to ground-based mounting supports.In general, ground mounted PV systems can be at the optimal tilt angle and orientation (as compared to roof mounted systems that can be non-optimal particularly for retrofits).

Ground-based mounting supports include:

Pole mounts, which are driven directly into the ground or embedded in concrete.
Foundation mounts, such as concrete slabs or poured footings
Ballasted footing mounts, such as concrete or steel bases that use weight to secure the solar module system in position and do not require ground penetration. This type of mounting system is well suited for sites where excavation is not possible such as capped landfills and simplifies decommissioning or relocation of solar module systems.

Ground mounts are normally consist of steel held in concrete with aluminum rails holding up aluminum modules. There are ground mounts at the residential and commercial levels, but the systems are simply smaller and the number of PV modules per column may be less. In some regions like North America there is evidence that wood-based ground mounted PV racking (both fixed tilt,raised fixed tilt for trellis-based PV and variable tilt angles) can be less expensive than conventional metal racks. This is not true globally, as for example in Togo, metal racks still cost less per installed unit power even with a lower tilt angle allowing for smaller wood beams.The relative price of wood to metal radically shifts the optimal PV racking material throughout the world.This can change as wood prices have been very volatile.

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