Quite expected that you wouldn't understand it. After all you keep seeing one extreme or the other so it's no surprise you can't see that an inverter only steps up and converts to 240VAC so most devices can step it down and convert to low voltage DC. Or like I said give me this one inverter solution that doesn't require all this stepping down.
You
Seriously lost the plot and missed the boat again.
Using the 220VAC Inverter you retain all the existing high power appliances and conveniences. Think induction stoves/hobs, heaters, PC power supplies, etc. All modern efficient appliances for their use and needs.
Using the modern 220VAC consumer electronics devices which use SMPS for regulating the required low power is more economical and effective than before. Think...Cell phone chargers 150mA@220VAC input with 1Amp@5VDC output. Very few devices still use transformers and linear regulator power supplies. Only cheap China junk. See picture below.
Most devices use cheap and not efficient means to convert 240VAC to 12VDC or whatever the required voltage. What it seems people don't understand is that such a DC-AC-DC combination isn't more efficient than a DC supply.
In the above pic the 220AV get rectified in 350VDC and then produce the regulated 5VDC via a high frequency switched mosfet at high efficiency. There is no linear regulators.
In the picture the lower unit converts 12VDC to 5VDC using a similar switching mode principle.
YOU CAN USE THREE OF THE 220VAC DEVICES AS OPPOSED TO ONLY ONE OF THE 12VDC DEVICES FOR THE SAME TOTAL LOAD SUPPLY CURRENT
What you fail to understand is the load losses due to copper resistance and thus the required heavy duty large diameter copper wire required to use all the devices in a home environment will be far more costly than simply using a 220V inverter with its claimed "efficiency losses". Effective high voltage potential energy is then available and many consumer devices can be used all at the same time on standard 2.5mm2 copper wiring. No need for modifications or expensive supply wiring. There are only a few plug circuits with trip switch breakers in a home electrical DB feeding a each to few power circuits. Most people use multi plug extensions to enable them to use more devices at such plug points at any one time. Changing these feeds to 12V DC will come at a large expense requiring more circuits with thicker copper wire and bigger more robust circuit breakers or tripping electronics to service the same amount of consumer goods. There are just no solutions to overcome this reality.
No, what we are saying is that just because your way of doing it pays the bills for you doesn't make it necessarily the best and most efficient solution. Ignore the low voltage for high power devices. That is Seriously's straw man and not what was argued.
The facts remain. An inverter is inefficient unless you go for a super expensive one and then you're not going to get much more than 95% efficiency if lucky. Most devices use cheap and not efficient means to convert 240VAC to 12VDC or whatever the required voltage. What it seems people don't understand is that such a DC-AC-DC combination isn't more efficient than a DC supply.
But I guess I was wrong about my hope for humanity. I'll just leave you all with your straw men and red herrings to argue against what 2 people in this thread has already done. When the paw paw hits the fan it will be most of you left in the dark. I hope you will be trying to help those people out then with what has been paying the bills.
Your whole premise is that people should cut out their conveniences and appliances and you fail to even do calculations to proof to us why your whole argument in this thread is not unrealistic poppycock BS thumbsuck ideas. I have proven by example to you many times that using just a standard 360 Watt desktop PC that your whole argument is hogwash and not feasible. Your false claims and shoddy engineering principles is what showed everyone you do not know what you talk about and everyone left this conversation as they gave up arguing with you and you tiresome circular reasoning, that includes the OP.
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