Power companies are like any other corporate entity. They're in the business of making a profit, and if newer technology helps them do that then they'll use it.
and the ratepayer has to take it, no matter what the utility decides to do.
This is also a false statement. Every utility has to answer to a public service commission which typically are the entities that set the rates - not the company as such, although they will present their case for rate hikes based on expenses etc.
...and the ratepayer has to take it, no matter what the utility decides to do, after it has been rubber-stamped by the worthless Public Service Commission.