To know how much power does a 16kw solar system produces per day is the main issue that many customers need to consider when purchasing a solar system.
Today we will detail how to quickly calculate how much electricity a 16kw solar system produces per day.The size of a 16kw solar system is generally suitable for home users. For this kind of solar system for home use, although there are many factors affecting the amount of electricity generated by the solar system, the main factors can be summarized into three: the number of solar panels or the total power of solar panels of the solar system (size), the installation of the local peak sunshine time, and the conversion efficiency of the solar system (loss).
Main influencing factors:
In fact, the calculation of the amount of power generated by a solar system of any size is dependent on these three main influencing factors that we have mentioned.
Power of the solar system:
The more power and the more number of solar panels, then the more the total power of solar system solar panels, the more electricity can be produced per day naturally.
The mainstream solar panel power on the market today is around 410W to 700W. Calculate the total power of solar panels in a solar system = number of solar panels x wattage of a single solar panel/1000. e.g. 29 solar panels of 550W, then the total power of solar panels in a solar system should be 15.95kw.
Average Peak Sunshine Hours for the year:
Peak sunshine time is the total amount of irradiance integral over a period of time equal to the duration of exposure to a light source with an irradiance of 1kW/m2, which is measured in hours (h). In other words, the amount of sunlight that a solar panel can get each day depends on the peak sunlight time each day.
At different times of the day, the sun’s light intensity is different, although some areas, in the sunny day all day can feel the sun, but the morning and evening sunlight tends to be weaker, while the midday sun will be more intense;
Throughout the year, different seasons, the daily sunshine time and intensity are different, summer daily sunshine time is long, light intensity is strong, while winter daily sunshine time is short, light intensity is weak;
Different climatic conditions will also affect the peak sunshine time, cloudy, cloudy or foggy weather, the intensity of sunlight radiation will be reduced, the peak sunshine time is short, while more sunny days throughout the year, fewer cloudy and rainy days, the climate is dry, the intensity of sunlight radiation is high, the peak sunshine time is long;
Different regions, according to different locations, the peak sunshine time is also different. For example, near the equator, by the sun’s direct sunlight for the longest time, the light intensity is the greatest, the annual peak sunshine time is generally 5-6 hours, and near the Tropic of Cancer, the light intensity will be slightly weaker, about 4 hours; closer to the Arctic region, some of the colder countries, the peak sunshine time may be even shorter.
We can also check the local peak sunshine time through the Global Sunshine Time Distribution website.
The power conversion efficiency or loss of a solar system:
The power conversion efficiency or loss of the solar system is also a major factor that we need to consider.
The electricity produced by solar panels is direct current (DC), whereas our typical household loads (i.e. appliances) use alternating current (AC). To convert DC power to AC power that can be used in our homes requires the work of inverters, controllers, batteries and other products, so in the process of converting DC and AC, there is bound to be some loss, which is often caused by a variety of factors, such as the loss of the inverter, the loss of the conversion of the MPPT, the loss of the conversion of the energy in the storage of the battery and so on, which will produce a certain amount of energy loss.
Example Calculation
So, if we know both the power of the solar system at our location (where the solar system is installed) and the peak sunlight hours, we can use the following equation to calculate how many kwh of electricity the solar system produces per day:
Daily Electricity Production = Solar System Power × Peak Sunshine Time × 0.8-0.9
As in the above equation, the higher the solar system power and the sunnier the installation area, the more electricity the solar panels will produce. This must also be multiplied by a factor of 0.8-0.9 to account for 10-20% of the losses within the system (AC/DC conversion, inverter, controller, batteries) to get the amount of power generated by the solar system per day.
So, to our question, how much electricity can a 16kw solar system produce per day?
We can directly use the above mentioned equations to calculate it directly.
Assuming the installation location is near the equator.
16kw*5h*0.8=64kWh
If the installation is located near the Tropic of Cancer.
16kw*4h*0.8=51.2kWh
The above is a rough calculation of the power generation of a solar system, if we want to achieve a more accurate calculation, there may be some other factors may also have some impact on the daily power generation of solar panels.
For example, installation angle and tilt angle, system type and so on.
Other secondary factors (additional):
Mounting Angle
The installation angle and tilt angle affect the intensity and duration of sunlight radiation received by solar panels.
Therefore, when installing solar panels, it is necessary to follow the local location, and it is best to use professional software and engineers to calculate the most suitable light angle and tilt angle for you in order to maximize the power generation and avoid wastage. Mancebo can provide more accurate angles and suitable mounting brackets according to your installation location.
System Type
The system types can be simply categorized into three. Grid-connected solar systems, off-grid solar systems and hybrid solar systems.
The main differences between these three types of systems are shown in the diagram below:
Summarize
Generally grid-connected solar energy system power generation efficiency will be relatively greater, the main components in the grid-connected system are solar panels and grid-connected inverters, there is no more other parts of the joining of the solar energy system for the production of the conversion of the impact of the factors are smaller, so the conversion efficiency of grid-connected inverters is also higher. Generally can reach 98%, 99% or so.
Hybrid and off-grid systems, on the other hand, add products such as batteries and MPPT controllers, which have more influence on the production of electricity, but it is also necessary to choose the right type of system according to their needs. Off-grid systems are more suited for areas without electricity or where the grid is unstable; hybrid systems are a good choice for customers who have a stable grid but want to be able to offset some of their electricity bill.
So, calculating the amount of electricity produced by a solar system can also be very helpful in choosing the right system size. For example, according to our calculations, for customers in equatorial regions, a 16kw solar system can produce 64kwh of electricity per day. Then when judging whether the system size is suitable, you can consider the daily electricity consumption of your family to determine whether a 16kw solar system is suitable for your family.
For other more solar energy system related questions, such as how much capacity of battery should be matched with 16kw solar energy system, the price of installing the whole system, how to install and use the system, etc., please feel free to contact us at Maxbo, to provide you with more professional and perfect solutions.
