Someone who only uses a few electronic gizmos and doesn't think about his appliances doesn't see a value for AC Refrigerator Hot Water Heaters and A/C Stove

Someone who only uses a few electronic gizmos and doesn't think about his appliances doesn't see a value for AC Refrigerator Hot Water Heaters and A/C Stove Basically all appliances Power tools (admittedly more are cordless) The bits lost to convert to dc for your cell phone and whatnot are rounding errors. I would be interested to see an analysis of whether it's more efficient to have a single dc converter vs lots of little ones. I doubt it. And also I don't understand the reference to HVDC - that's a transmission technology that's already used when more efficient and doesn't relate to household dc electronics.