I gotta say... the only time I ever worry much about power consumption in personal computers is when they need to run off batteries. Perhaps electricity is far cheaper where I live than elsewhere in the world. I dunno.
You live in USA. We charge ourselves a lot less $$$ for our electricity than most developed countries charge themselves for their own electricity.
I compared prices in early 2000s. It was shocking.
Germans were paying nearly triple what we were paying. France was about double. etc. etc.
