Concentrated photovoltaics allow a reduction of expensive semiconductor materials by collecting incident light through optical elements such as lenses and/or mirrors, which usually require bulky or heavy dual‐axis solar trackers, requiring dedicated installation sites. In this paper, we report a planar‐type concentrating photovoltaics with cylindrical lenses on which flexible GaAs solar cells are directly integrated on the curvilinear surfaces. The planar‐type concentrating system maintains both a focused beam width and angle invariably onto its integrated solar cells throughout the day. Computational and experimental studies at various incident angles prove the benefits of the design. Demonstrations of a custom‐built cylindrical lens solar tracker installed on a rooftop or sidewall of a building prove the feasibility of the proposed concept.

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