Wanting to build a home backup system

[cnote]

Hi forumers,
I’m wanting to build a home solar and grid-powered backup system for power outages and possibly expand later to a total off-grid system. I ran across some of the videos regarding the 48v all-in-one systems. I’m a total beginner with solar and electrical systems. Can anyone direct me to videos or web pages explaining what I would need, and how, to build such a system (preferably a simple one like the hand truck 48v all-in-one setup)?

Thanks

 

[wme]

Many of us started here...
https://www.mobile-solarpower.com/
Same person but videos
https://www.youtube.com/c/WillProwse/featured

P.S. He owns this place

 

[cnote]

Many of us started here...
https://www.mobile-solarpower.com/
Same person but videos
https://www.youtube.com/c/WillProwse/featured

P.S. He owns this place

Yes, I saw those pages and videos and the 48v hand truck all-in-one unit is the one I really liked. He said in the video that you need a converter to run 12v appliances. Is that all I’d need? I just want to avoid damaging appliances or the battery, all-in-one unit, etc.

 

[12VoltInstalls]

Is that all I’d need?

And a fuse box.

 

[cnote]

And a fuse box.

Ok, thanks. So I would just need to flip the switch to run 12v appliances, correct? When would the full 48v be needed?

And what about running 220v appliances, such as a clothes dryer? Would I need more power in my 48v unit or just another plug for a 220v outlet?

 

[MichaelK]

Ok, thanks. So I would just need to flip the switch to run 12v appliances, correct? When would the full 48v be needed?

And what about running 220v appliances, such as a clothes dryer? Would I need more power in my 48v unit or just another plug for a 220v outlet?

You need to show some realism here. Anything small enough to fit on something on wheels is not going to be big enough to power big-ticket items like a 220V clothes drier.

The first thing you should be doing is the math to add up exactly what you want to power. There are orders of magnitude of differences between powering some lights, or a TV, compared to 220V appliances. Orders of magnitude means powering 500w or 5000W instead of just 50W.

Let me example you a couple of levels of power you might want to design for.

Lights, TV, computer: 12V system, 120-250Ah of storage, 500W of panels.
Lights, TV, computer, refrigerator, freezer, microwave: 24V system, 250-500Ah of storage, 1000-2000W of panels.
Lights, TV, computer, refrigerator, freezer, microwave, 220V items like well-pumps, ect: 48V system 500+Ah of storage, 3000-5000W of panels.

For going from 48V to 12V, these little converters might work well for you...

 

[42OhmsPA]

Ok, thanks. So I would just need to flip the switch to run 12v appliances, correct? When would the full 48v be needed?

And what about running 220v appliances, such as a clothes dryer? Would I need more power in my 48v unit or just another plug for a 220v outlet?

I just started the clothes dryer a few minutes ago...
I have a 10KW AIO, ~39KWh battery, ~11KWh panels with 5.6 of them under snow...
My 'build thread' in my about section may help you.