Nowadays ,rainwater collection technology is popular in the world ,but there's no combination of rainwater collection and power generation .The article designs an integrated power generation system in high architectures based on the rainwater collection and analyzes the benefits of economy and environment of this system .This innovative system is simple constructed ,environment -friendly and easy -promoted ,which has a vast potential for future .%设计了一套适用于高楼雨水收集发电的整体系统，并对该系统的经济及环境效益进行了分析。结果表明：该系统结构简单，节约资源，也易于推广，具有广阔的发展前景。
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