Difference between monthly, daily and hourly solar radiation

I am currently modeling a solar tracker in MATLAB. But I am confuse about solar irradiance. Actually what is the difference between monthly, daily and hourly solar radiation? Which one is more accurate to test out the tracker? I mean my project is only to test the efficiency. It won't last for a very long time to do the observation.

• What are you asking? The difference between months, days and hours ... May 24, 2018 at 14:05
• What's your data source? May 24, 2018 at 14:08
• If you're trying to utilize this solar tracker to ensure the maximum amount of power for a solar panel, then I can think of two algorithms: 1) This is simple (assuming that you live in the Northern hemisphere). You know that the length of the days in winter are far shorter than the days in the summer. You can have a separate day duration for summers and winters. 2) This one is more tricky: Creating a neural network and a learning machine. You can have the solar tracker locate where the sun is and try to adjust its position in real time.
– user103380
May 24, 2018 at 14:40
• @KingDuken - winter days are shorter than summer days in the Southern hemisphere too ... May 24, 2018 at 14:47
• You want to simulate something you know little about? You should study the subject before trying to write a simulator. You can't simulate something if you don't understand it. So start with: Irradiance is about 1362 W/m^2 in space. Due to Earth's Bond albedo about 31% of that is lost as a global average figure. You will need to calculate the sun's continually changing altitude during each day (latitude, time of year, time of day, etc) and account for other factors (local high altitude vs low altitude cloudiness measures vs time of year.)
– jonk
May 24, 2018 at 17:20