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I am trying to plan a system but the info is overwhelming. I am trying to design a system that I can expand on. I am wanting a grid-tied system. I wont be able to buy everything at once, so I am going to start with a battery backup. I want a system that will power my house for about 12 hours...

that was something I forgot about, I do want it to sell back to grid any surplus once my batteries are charged.

I have a really good idea of what my current draw is. the issues i'm having is what type of inverter, what brands are reliable, terms used to describe each feature, ect. Davidpoz just posted a video the other day on a drawback of an inverter he was testing. It said it was an 8000 watt inverter...

anyone have suggestions?

according to my electric bill the highest average i have used is 90kWk a day.

i have 2 refrigerators. those have a larger start up draw. I have a 2 pumps in my utility room. 1 is a rain water ejection, the other is an ejection pump that is for my basement bathroom.