Hi
I am Jack from NewYork.

Here is the idea of mine. I have planned to change my full home to renewable sources. My choices are Solar panels & home wind turbines. I will connect both the systems to generator. From there i planned to split the DC power directly to the appliances that run on DC. Remaining power to the storage battery for the future need.

So there is always an issue, while converting the DC to AC or AC to DC, power is getting wasted. Will the AC appliances (like power tools) accept DC power directly from battery without any inverters or Rectifiers?

Hi Jack, welcome to the forum.

You're quite right, most of the electric motors in household appliances are so called universal motors, which means
they can be run on either AC or DC current.
An easy way to see that would be to look for coal (or brass or.....) brushes at the beginning of the motor, that way
you know for sure if it's a universal motor or not.

https://en.wikipedia.org/wiki/Universal_motor

Good luck

Thank you so much for your valuable inputs Lynx

Whether the appliances that run with high power will have Universal brush motors or the heavy load appliances will have that motors??

Jack, I'm going to give you the benefit of the doubt here.
You seem like a real person, as opposed to a bot, so please remove your avatar and take away the link in your profile.
This has also been sent to you in an email and a PM.

Do not run an AC appliance with a DC supply or vise versa. Take electric motor in your ac condensor fan. They arent built like a DC motor. DC motors use permenant magnets and a rotar. An AC motor using a rotar with stators and stators (coils) for the perm magnets.

It is very important that you make sure it is okay because in some cases its no problem, in other cases its smart to just build a simple circuit for converting it to ac or buying a rectifier straight.

Another thing to remember is wire gauge. AC wire is smaller because it carries current differently, where DC is larger. If you put a DC source of a AC target, you risk blowing the circuitry through the roof. As well as fires and total melt down.

So if the appliance isnt rated to handle DC, in no way should it be used.

As far as is their a different power difference between DC and AC. Well no not really, if you consume 5 amps of 120vdc you will consume 5 amps of 120vac. So if you have to do any step up or step down with a power transformer just remember this simple equation.

inVolts/outVolts * inAmps = outAmps

Instance:

Step Up:
120vac/2000vac * 9amp = 0.54amps or 540 milliamps
Step Down:
2000vac/120vac * 0.54amp = 9amps

You can mix AC and DC in their to get the same result, I didnt in the example.