However, the semi-automated production line and those roughly-made puppets, in Zhu Zhangqi and other disciples' opinion, require energy to operate. They are reluctant to use Spirit Stones because they are too expensive. After all, with that money, it's better to hire disciples from within the hall using Spirit Stones. These disciples don't demand much Spirit Stones, they are all strong and robust, capable of working all night long, and are very efficient, not much slower than industrial production.
So, to save money and Spirit Stones, Zhu Zhangqi and the others began to ponder the energy source that Su Jie provided. Using the technological knowledge Su Jie shared, they replicated a power station to supply electricity for the industrial production line.
