For those facilities affected by time of day rate structures and or demandcharges, the use of electrical meter readings is essential to an efficient operating facility.
对于那些用天数作为收费标准的设施来讲，电表的读数对有效地运行设施是非常必要的。
2
The ultimate point of smart grids, however, is to allow dynamic pricing, with electricity charges fluctuating in response to demand.
但智能电网的终极目标是希望电价能够按照需求响应而上下浮动，实现动态定价。
3
On the other hand, it's hard to fault Amazon for what it charges when it can't fulfill demand at the current price.