How do you calculate direct sunlight hours?

How do you calculate direct sunlight hours?

What is a peak sun hour? A peak sun hour is defined as one hour in which the intensity of solar irradiance (sunlight) reaches an average of 1,000 watts (W) of energy per square meter (roughly 10.5 feet). Another way to put it: 1 peak sun hour = 1000 W/m² of sunlight per hour.

Which area would get the most hours of sunlight?

Places in the world with the most daylight hours According to the World Meteorological Organization, Yuma (Arizona) is the sunniest place on earth. It has a total of 11 hours of sunlight in winter and up to 13 in summer. This means Yuma experiences an average of 4,015 hours of sunshine per year.

What are my average peak sun hours?

Although your panels may get an average of 7 hours of daylight a day, the average peak sun hours are generally around 4 or 5. Solar radiation peaks at solar noon, when the sun reaches the highest point in the sky.

What is a sunlight hour?

A “Sun-Hour” is “1000 watts of energy shining on 1 square meter of surface for 1 hour”. In Denver Colorado, in the month of May, the average Sun-Hours per day for a panel at 35 degrees is 6.40. The sun shines for much longer than 6.4 hours per day, though.

How do I know my sun position?

To find the Sun’s position for a given location at a given time, one may therefore proceed in three steps as follows:

1. calculate the Sun’s position in the ecliptic coordinate system,
2. convert to the equatorial coordinate system, and.
3. convert to the horizontal coordinate system, for the observer’s local time and location.

How do I find my sun path?

SUN PATH DIAGRAMS

1. Step 1: Identify the Month. The first thing you need to do is locate your month on the chart.
2. Step 2: Identify the TIME. Now we need to locate the correct time.
3. Step 3: FIND THE ALTITUDE. The altitude is the height of the sun above the horizon.
4. Step 4: FIND THE AZIMUTH.

In which month solar radiation is maximum?

The maximum annual value during the three-decade study period occurred in 1985 when it reached 7181.12 MJ/m2, whereas the minimum value of 6604.48 MJ/m2 occurred in 1998. July has the largest monthly global radiation, which has reached 803.64 MJ/m2, more than two times that of December and January.