One problem is that power companies are understandably reluctant to invest in technologies that will reduce consumption of the product they sell, even if there are other benefits.

• 问题之一是电力公司不愿在技术上进行投资，尽管可以理解，因为虽然有其他好处，但技术进步会减少他们产品的消耗量（即减少耗电量）。