Placing your solar panels on the roof or constructing them as a shade is not an automatic guarantee that they will harvest efficient power for you, regardless of their rated power.
You need to consider placing your panels where they can get good sunlight all day. This, in return, will increase your PEAK SUN HOUR.
A PEAK SUN HOUR is defined as an hour in the day when the intensity of the sunlight reaches an average of 1000 watts per square meter. This varies by geographical location. For example, a location that gets 5 Peak Sun Hours (kWh/m²), means that area gets 5 hours of solar power when the average intensity of sunlight is 1000 watts/meter².
If, for instance, you have 8 pcs of 300W (that is, 8x300W = 2400W or 2.4 KW) solar panels with a power size of 2.4 KW and an average of 5 peak sun hours, your daily generated energy can be estimated at:
5 hours (Peak Sun Hours) x 2400 W = 12,000 WH, or 12 KWH.
Note: For simplicity, these numbers do not represent factors like temperature loss, solar panel shading or wrong positioning, poor cabling, inverter or charge controller inefficiencies, etc.
