Control is better
Cell testing: Solar cells are vulnerable to defects, such as microcracks, at every step of the manufacturing process. Some module manufacturers have therefore started carefully screening the goods coming from their suppliers. Manufacturers are taking a close look at what comes in the door and keeping cell suppliers on their toes.
Quality assurance at aleo solar AG is conducted at one second intervals. Two years ago, the German module manufacturer invested in a tester capable of inspecting 2,400 cells per hour, inside and out, and then segregating them into categories with the help of a sorter. “The investment has paid off for us,” says Alexander Kasic, …
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