The photoelectric conversion rate of polycrystalline solar panels, also known as the solar cell efficiency, typically ranges from 13% to 18%. This means that these solar panels can convert 13% to 18% of the sunlight they receive into electricity. The efficiency can vary based on factors such as the quality of the materials used, manufacturing processes, and the specific technology employed in the solar cells.

It’s worth noting that while polycrystalline solar panels are generally less efficient than monocrystalline solar panels (which can have efficiencies exceeding 20%), they are often more cost-effective to produce. The choice between polycrystalline and monocrystalline solar panels depends on various factors, including budget, available space, and specific energy needs. Advances in solar technology continue to improve efficiency and reduce costs across different types of solar panels.