Through its subsidiaries, Ja Solar engages in the design, manufacturing, and marketing of high-performance solar cells. The company sells its monocrystalline and multicrystalline solar cells to module manufacturers who assemble and integrate solar systems. The company takes monocrystalline wafers made by silicon refiners like ReneSola and M. Setek and turns them into PV cells. Each cell has a relatively low power output, but when multiple cells are combined into a system or module, enough electricity can be generated to power a house, a factory, or even contribute to the utilities grid. JA Solar currently sell its products to customers in the U.S., China, South Korea, Germany, Sweden, and Spain.
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