What you say all makes sense @Theo. I’m certain DC will someday make it into the home on a broader scale but utilities won’t switch to DC. Utilities use A/C because it’s the best method by far for transmission. Edison (DC) and Tesla (AC) fought over their systems but Tesla clearly won that battle. The problem with adding more DC into homes now is that the home’s wiring would need to be replaced and sized for DC. DC requires larger conductors especially when ran for distances longer than 40 feet. The longer a circuit the larger the conductor needs to be. It’s not very practical or economical to wire a home for DC in comparison to AC.
DC generation such as wind and solar are great when they can provide generation but often times there are outages when neither is in supply. Hence we’ll probably always have at least some AC in our homes. Those who can generate solar or wind would be well served to have a grid tie and offset their energy costs. It does require an inverter, which is one of the more expensive components, and requires replacement over the 20 year lifespan about 2 or three times, but it’s still a worthwhile endeavor.