Optimal tilt of solar panels

To get the most from solar panels, you need to point them in the direction that captures the most sun, This page is designed to help you find the best placement for your solar panels in your situation. This advice applies to any type of panel that gets energy from the sun; photovoltaic, solar hot water, etc. We assume that the panel is fixed, or has a tilt that can be adjusted seasonally.

Fixed or Adjustable?

It is simplest to mount your solar panels at a fixed tilt and just leave them there. But because the sun is higher in the summer and lower in the winter, you can capture more energy during the whole year by adjusting solar panels according to the season. The following table shows the effect of adjusting the angle, using Tilt Of Solar Panels a system at 40° latitude as an example.

In short, Adjusting Solar Panels twice a year gives you a meaningful boost in energy. Adjusting four times a year produces only a little more,Optimal tilt of solar panels will bring you more energy.

Fixed Tilt

If your solar panels will have a fixed tilt angle, and you want to get the most energy over the whole year
1:If your latitude is below 25°, use the latitude times 0.87.
2:If your latitude is between 25° and 50°, use the latitude, times 0.76, plus 3.1 degrees.

Adjusting the tilt twice a year

If you are going to adjust the tilt of your solar panels twice a year, and you want to get the most energy over the whole year,
If your latitude is between 25° and 50°, then the best tilt angle for summer is the latitude, times 0.93, minus 21 degrees. The best tilt angle for winter is the latitude, times 0.875, plus 19.2 degrees.

	Northern hemisphere	Southern hemisphere
Adjust to summer angle on	March 30	September 29
Adjust to winter angle on	September 12	March 14

These calculations are based on an idealized situation. They assume that you have an unobstructed view of the sky, with no trees, hills, clouds, dust, or haze ever blocking the sun.

Related Tags: Photovoltaic Mounting Provider

More about aluminum extrusion materials

Aluminum comes in different alloys. A construction or structural alloy is an aluminum alloy designed for building structures, such as in the rails of a mounting system – examples of this type are 6005-T5 or 6106-T6.

Lower-grade aluminum like AL 6063 is most commonly used to build office partitions or window framing. It is not as strong, and you should be wary of a mounting system rail constructed using this material. There are different shop sign aluminum alloy application:

1: 6005 extrusion profiles and pipes, have strength greater than 6063 alloy structure, like a ladder, TV antenna, etc;
2: 6009 mainly used for car plate;
3: 6010 sheet: car body;
4: 6061 used for all kinds of industrial structural requires a certain strength, weld-ability and high resistance to corrosion, such as manufacturing truck, tower building, vessel, trams, furniture, mechanical parts, precision machining etc. used with the tube sheet, rod, bar section, panel;
5: 6063 industrial extruded aluminum profiles, construction profiles, irrigation pipes and extruded material for vehicle and rack, furniture, fencing, etc; 6: 6066 forgings and welding structure extrusion materials;
7: 6070 heavy welding structure and automobile industry used with materials and pipe extrusion; 8: 6101 buses with high-strength bars, electric conductor and cooling equipment etc;

For solar mounting system , aluminum alloy 6005 is usually supplied in tube or extruded form . It's most common temper is T5, this temper denotes that the material has been cooled from an elevated temperature for the shaping process and then artificially aged.