Panel Tilt angle ??
I'm now in Quartzsite for a few months, and using my tilt bars for the first time. but can't really decide what angle to use. Right now all 3 panels are different angles,.....kinda ugly. Others here ...
Forum Discussion
Salvo wrote:
Interesting, some 8 years ago I designed my winter tilt for Quartzsite (Lat = 33.43 degrees).
There's a few different methods to calculate tilt angle. Some very simple (for winter):
1. latitude + 15 deg = 48 deg
2. 0.9 * latitude + 29 deg = 59 deg
I use a more complicated calculation and got 56 deg.
The tilt angle for high noon anywhere is the same calculation as finding your latitude from your noon sight. People have been doing that for thousands of years, using various gizmos to measure the sun's altitude above the horizon at high noon.
It is mostly about the Declination that day, which changes about 8 degrees a month going up and down over a six month period, changing about 23.5 degrees every three months. EDIT however it is not linear as is shown above--good post showing that!! :)
That 15 degrees you see a lot of for this, is just a sort of middle point chosen for Declination between 23.5 and zero. 15 degrees is approx two months worth (linear--but it's not linear) so it would be for around mid- May or mid- July in summer so it fits as a good number for many people's RVing "season"
