A promising technology for the future of solar energy is the highly efficient bifacial photovoltaic (PV) cell using perovskite as an absorbing layer. Here we report the environmental impact per energy generated from bifacial perovskite PV cells in single- and multi-junction configurations. To determine the environmental performance of the energy provided from bifacial perovskites and compare it with the analogous monofacial structures, we develop a realistic energy yield (EY) model. According to our model, the studied bifacial structures show between 9% and 26% EY increase compared with monofacial cells among all surfaces and locations studied. For the environmental impact analysis, we use normalized cradle-to-end-of-use impact from single-junction crystalline silicon (c-Si) solar cells as a reference point. Our results show that there are opportunities for all studied bifacial perovskite PV structures to become more environmentally friendly than c-Si cells.

使用钙钛矿作为吸收层的高效双面光伏（PV）电池是太阳能未来的一项有前途的技术。在这里，我们报告了在单结和多结配置中双面钙钛矿光伏电池产生的每能量对环境的影响。为了确定双面钙钛矿提供的能量的环境性能，并将其与类似的单面结构进行比较，我们开发了一种实际的能量产率（EY）模型。根据我们的模型，在所研究的所有表面和位置中，与单面细胞相比，所研究的双面结构显示出EY增加了9％至26％。对于环境影响分析，我们将来自单结晶体硅（c-Si）太阳能电池的标准化的从摇篮到使用结束的影响用作参考点。