We proposed a low-profile static low-concentration optics design paradigm for building-integrated photovoltaics or as alternative of flat PV panels. Based on the measurement results of our prototype, this design could reach more than 80% on-axis optical efficiency and more than 60% collection efficiency over an annual solar insulation, with a concentration of around 3x. The result is approaching the analytical maximum of non-tracking concentrator derived in previous study.
Achieving wide-acceptance angle and high on-axis performance static low-concentration module using hybrid lens arrays
Kan-Hua Lee, Kenji Araki, Nobuaki Kojima, Masafumi Yamaguchi; Achieving wide-acceptance angle and high on-axis performance static low-concentration module using hybrid lens arrays. AIP Conf. Proc. 13 September 2018; 2012 (1): 040006. https://doi.org/10.1063/1.5053514
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