These were never intended to benefit the consumer. They are intended to put meter readers out of work to save the utility money. A secondary benefit to the utility was to give them the ability to charge consumers more during peak demand times. Oh yeah and their definition of peak demand times would increase over the years since they aren't building new power plants.
Disclosure: I used to design and build electric power plants.
I used to service instrumentation for power plants, and my former employer did design services for the steam recovery portion. So yeah, it's all about reducing their cost and increasing yours.
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