What is the solar racking?

Solar racking is called photovoltaic mounting system, that is used to safely fix solar panel on different surface, fox example roofing, ground. What is the important about the solar racking? There are some important factors that must be clear when design the solar racking system.

1/Orientation and Inclination

If you want to install solar panel on your roofing or ground and the solar panel perform best , then its surface is perpendicular to the sun`s rays. The sun`s rays angle changes continuously over the course of the day and as the seasons change.

2/Snow Load

Collapses of solar power stations caused by heavy snowfall occur frequently in the industry, most of which are caused by the lack of solar mounting bracket design or the use of inferior materials. The Max snow load of solar mount bracket is 1.4KN/m²,that is generally chosen by default.

The calculation of snow load should be considered when designing the solar mounting bracket:

S=CS×P×ZS×AS

S——Snow Load

CS——Slope rating

P ——The average unit mass of snow (N/m2, equivalent to the mass of 1cm of snow) is more than 19.6N in general places, and more than 29.4N in snowy areas.

ZS—— The deepest vertical snow cover on the ground(cm)

AS——snow area

3/Wind Load

The wind load of solar mounting system is 216 kilometer per hours(about 134 mile per hours),Solar panels are designed to withstand wind speeds up to 140 miles per hour. (Even a category three hurricane, considered a major hurricane, will typically have a top wind speed of 129 mph). If the area is not the extreme weather is more general, the wind pressure is generally chosen by default(216kilometer per hours).

Therefore, it is common practice for solar racking systems to fix solar arrays at the same angle as the latitude of the array’s location and combined with wind load, snow loads factors to maximize annual energy production.