"These plumbers know how to connect pipes, but don't know how to improve water quality or turn wastewater into gray water that can be reused. They also don't know which equipment is more energy efficient," says He Qiuquan, director of the Taiwan Energy Service Association, adding that energy conservation requires knowledge of system integration. He argues that manual laborers can become green-collar workers by simply upgrading their skills.
「他們有接水管、配管線的能力，但不知道如何讓水質更乾淨，或者將廢水變成可再利用的水，也不知道用什麼樣的設備更節能，」能源技術服務公會總幹事何岳泉說，節能是系統整合的知識，只要提升技術，黑手就能轉型為綠領。