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The principle of CPV is to focus sunlight on highly efficient solar cells, otherwise the direct use cost is just too high. These particularly rugged solar cells are usually utilized in space or military applications, can handle 1000 or more condensing ratios, and are still nearly 3 times more efficient than traditional photovoltaic cells (Si PV) made from silicon. This method has its own disadvantages: it must face the sun directly and be equipped with condensing optics.
The Concentrating photovoltaic (CPV) technology uses optical devices like lenses or curved mirrors to collect an outsized amount of sunlight on small-area solar photovoltaic (PV) cells to get electricity. Compared with non concentrating photovoltaic, CPV system can save the value of solar cells because it requires a smaller area of photovoltaic materials.
The CPV also competes with centralized solar thermal power generation. CPV converts sunlight directly into electric energy, while solar thermal energy converts sunlight into heat, and then converts heat into electric energy.
The traditional CPV design goal is to use a separate solar concentrator for every photovoltaic cell . the most motivation of this chapter is to propose a completely unique concentrating module design for CPV, which may use one solar concentrator to process multiple solar cells without affecting its size. This proposed design, called multi cell condenser assembly (MCA), won't only reduce the assembly add the manufacturing process of the CPV assembly, but also reduce the general system cost by simplifying the planning . This chapter introduces and develops the detailed design method of multi cell condenser assembly (MCA) of the CPV module, which is fully verified by ray tracing simulation and field experiments.