Solar electric home

Question

I want to see if my house can go completely solar. It's a small house with 240v 100A of electricity so about 24kW. I'm still new to this whole solar panel subject, this is my first time utilizing it in a big appliance so I need some verification IF the wire-ups it'll work.
I want to see if I need to get a 24v 300 watt solar panel, I did some calculations which means I need to get 80 pieces of the same solar panel.
Then I need an inverter. I found 3kW inverter 24vDC to 120/240VAC so I think I need to get about 8 of them. 10 solar panels will merge and wire up to an inverter input. All inverters output merges inside the Solar power box (Most likely won't work) OR just one 24kW inverter, and the solar power box should generate 240vAC 100A and hooks up to the main breaker.
I'm still developing a battery backup plan for the night so this won't be included in this topic. Any heaters WON'T be a part of electric appliances. But, I do need some more backup power (at least 40A) for other appliances like power tools after all the main appliances like refrigerator, laundry, and lights just in case I'll be using 90A out of 100A.
PS: I do not have any electric utility-provided power nowhere near my house.
Overall, my main question is, would I be able to generate 240vAC 100A of electricity by utilizing products above I mentioned during the daytime?
Will the products and the wire up process above be able to achieve my goal OR is there any better way for me to achieve it like if I need a different product or wire up differently?

jwh20 · Accepted Answer

If you have utility-provided electric service now, then you probably want to use a GRID-TIED inverter and generally fewer are better than more unless you go the "micro-inverter" route. For example I have a system with 50 330W panels and one Fronius Primo 15KW inverter. It's sized to provide 100% of my average usage but there are scenarios that exist where it cannot provide the peak power needed. At those times the extra power needed is drawn from the grid.
I don't use any battery storage because where I live the utility must offer NET METERING which means they pay me the same rate that they charge me. So the power company effectively acts like a giant battery. In places where there are different rates for buying vs. selling power, then a battery system MAY make sense but you need to do the calculations to determine that based on your situation.
Multiple grid-tied inverters can be tied together on the AC side since they are designed to feed a "live" power grid.
So assuming you really need 80 panels that would easily be split into two 40 panel arrays of 12KW each and you could use two 12KW grid-tied inverters to generate your power.  I am not aware of any 24KW inverters currently on the market.
So as a point of reference for you, my system was switched on in October 2018.  I have not paid for any net usage of electricity since December 2018.  Since then there has been an increase in "reserve" to about 7000 KWH today.
If you have your past electric bills, you should be able to figure out your average annual usage and there are plenty of online calculators or local installers who can help you properly size the system.

Solar electric home

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