Photovoltaic (PV) energy, unlike other renewable energies, is widely available as an independent source of energy regardless of its size. There are many processes in the industry segment of manufacturing such as silicon materials production, ingot, wafer, cell, and module manufacturing. Nowadays, we can see many patterns in business models in terms of integration and specialization. We also pay attention to the efficiency, durability, and price of panels made by PV manufacturers, but PV system integrators, who provide the best PV solutions for their customers, perform an important role in diffusing PV. I analyze the current supply chain and the movements of integration/specialization by interviewing executives at several PV companies. I then propose the most effective business model. I also review the role that would be important for diffusing new energy in that supply chain.
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