I'm going through diagrams in my head
just to get an idea of what my electrical system
is going to look like. I plan on charging
the batts from solar
(and the alternator
when motoring or shore power
when hooked in and needed).
But one thing I was thinking is when it comes to power usage I don't have so many things that need AC. I mean technically most things do.
But I will be running a small fridge and a 5 cub ft chest freezer
, occasionally a microwave or coffee maker, and sometimes a TV and the computer.
What I'm wondering is would it be more logical since most everything else is going to be 12v DC to have a few of those smaller car/rv invertors where I need them (and matched to the appliance) versus having one big inverter
up a separate AC system throughout.
My thinking is this:
1. Inverters use power when inverting, but not when disconnected. It's my understanding they still draw some power even when you aren't actively using the juice.
2. Isn't DC wiring
more efficient in short distances like on a boat and has less current
On a slightly different topic, I have also wondered if it's possible to condition the DC current
so that some of my regular appliances
can run straight off DC -- basically figure out what they need (usually 12v) and remove their AC to DC transformers and run straight DC to them.
It just seems like you'd be wasting electricity going from DC to AC then letting your appliance take that AC and make it DC internally again.