How to size a photovoltaic system ?

You can size the photovoltaic system by calculate the size of solar panel. photovoltaic systems hawaii

solar panels are the most important components of photovoltaic power stations. The cost of the entire photovoltaic power station accounts for more than 40% of the total cost of photovoltaic power station construction, and the quality of solar panels is directly related to the quality and power generation efficiency of the entire photovoltaic power station. , power generation, service life and yield, etc. Therefore, the correct selection of solar panels for homes is very important.

In the design and calculation of photovoltaic power generation system components or square arrays, although the total capacity and power of solar panels or the entire square array can be calculated according to electricity consumption or planned power generation, and the number of series and parallel connections of solar panels is determined, it is still necessary to The specific installation position of the sunpower solar panels determines the shape and size of the solar panel, as well as the overall arrangement of the entire square array. Some special-shaped and special-sized solar panels need to be customized with manufacturers.

For example, in terms of size and shape, solar panels of the same power can be made into rectangles, squares, circles, trapezoids and other shapes; in terms of the materials used for cells, solar panels of the same power can be single Crystalline silicon or polycrystalline silicon components can also be amorphous silicon components, etc., which requires us to choose and determine. After the shape and size of the solar home panels are determined, the combination, fixation, support, and foundation of the module can be designed.

When choosing the type of solar panels homes, it should not be mistaken to think that the efficiency of monocrystalline modules must be higher than that of polycrystalline modules, or that a module composed of 72 cells must be more efficient than a module composed of 60 cells. In fact, the same output The power conversion efficiency of monocrystalline modules and polycrystalline modules is the same, as is the conversion efficiency of 60-cell modules with an output power of 270W and 72-cell modules with an output power of 320w.solar photovoltaic system working

The selection of solar panels cost  should also be based on market trends to facilitate bulk purchases. At the same time, it should also be combined with the handling and installation conditions on the construction site. If conditions permit, try to choose products with large sizes and high efficiency. Modules with similar efficiency but different specifications have basically the same unit W price, but when choosing large-size modules, the installation cost of modules, the number of connecting cables between modules, and line loss can be reduced compared with small-size modules. Bracket and foundation costs are also slightly lower for size components. photovoltaic solar systems