The textile envelope integrated flexible photovoltaic (TE-FPV) system is an emerging technology to promote building sustainability due to its lightweight structure, textile recovery easily, and renewable energy production. We develop six novel TE-FPV prototypes to determine their advantages of environmental performance. Especially, the systems with the solar cells directly printed on the textile are designed to show the promising sustainability prospect. Their environmental performances are conducted by a cradle-to-cradle life cycle assessment, and the results are compared to traditional building integrated photovoltaic (BIPV) technologies. The life cycle inventories of some textiles and solar cells are the first time to be developed. Based on the inventories, life cycle impact assessment is implemented to figure out environmental impacts in various categories. Furthermore, uncertainty analyses and sensitivity analyses are performed to unmask the effects of parameters on the fluctuation of environmental indicators. The results present that most of TE-FPV systems perform more sustainable and more recyclable over the traditional BIPV systems. The organic solar cell is unfavorable for the TE-FPV systems due to its low power conversion efficiency and short lifespan. ETFE facade integrated perovskite solar cell systems can refund the investment of greenhouse gas emission even on the north orientation, showing vast prospective potential in environmental performances. This work contributes significantly required environmental quantifications to promote the advancement of TE-FPV systems.

中文翻译：

---

使用生命周期评估方法分析纺织围护结构集成柔性光伏的环境性能

纺织围护结构集成柔性光伏（TE-FPV）系统由于其轻质结构、纺织物易于回收以及可再生能源生产，是一种促进建筑可持续性的新兴技术。我们开发了六种新颖的 TE-FPV 原型来确定它们的环境性能优势。特别是，将太阳能电池直接印刷在纺织品上的系统的设计展现了可持续发展的前景。它们的环境绩效通过从摇篮到摇篮的生命周期评估进行，并将结果与​​传统建筑一体化光伏（BIPV）技术进行比较。部分纺织品和太阳能电池的生命周期清单尚属首次编制。根据清单，实施生命周期影响评估，以找出不同类别的环境影响。此外，还进行了不确定性分析和敏感性分析，以揭示参数对环境指标波动的影响。结果表明，大多数 TE-FPV 系统比传统 BIPV 系统更具可持续性和可回收性。有机太阳能电池由于其功率转换效率低且寿命短，不利于TE-FPV系统。 ETFE立面集成钙钛矿太阳能电池系统即使在北向也能补偿温室气体排放的投资，在环保性能方面展现出巨大的前景潜力。这项工作为促进 TE-FPV 系统的进步所需的环境量化做出了重大贡献。