I've read some of this but NOT all. This is what I have done and it has worked very well.
First of all let's get our setup and situation up front. We live on the Ocean front on the Atlantic side. We have a large place with 2 guest apartments plus our own home. 3 FULL kitchens plus wine coolers and freezers. Cieling fans, 120 hot water heaters, several TV's, WiFi, security lighting and ... You get the picture?
We upgraded our inverter to a 5.5 to handle ALL the 120 VAC. 32 batteries and took out the smaller inverter and those batteries. We have a 50 Kw diesel generator and can store 1000 gallons of fuel. Diesel got TOO expensive.
We now turn off ALL the 120 VAC in the day time during March to Nov. But we added solar also.
So to charge our bats, we installed an Air X marine on our ocean side roof area. It paid for it's self in 6 months. NO, it does NOT keep the batteries charged. I trickle charges. Most times with any breeze I'm lucky to see80 half an amp. A good breeze, 1.5 amps. A wind that we close the doors and windows on the ocean side, 3 amps. A gail, 10 amps. the most I saw was when last years huricane went by with ... est. mph winds and she just sang and worked like a champ. She DOES NOT make much noise. I've replaced the blades once. We did have honey bees chopped up. She is 4 years old and does just fine.
4 Large solar panels added two years ago. During the day, we run ALL our 120 VAC from the wind generator and solar. At MOST, I've have found the batteries down by 2 volts. The inverter is programed to start the diesel generator when the voltage gets to low. The genertor has NEVER been started.
WILL our systems pay for themselves. Yes and No. When the street power goes out, WE DO NOT RUN OUT OF POWER. Our elec. bills have been cut in half without a problem, but the system will never pay for it's self other then.... WE DO NOT RUN OUT OF POWER. I've estimated that if Edenorte went off line .... I'm good for OVER a year with the wind, solar and generator/fuel stored.
And I can't tell you how many times I've thrown an extension cord over fences or have provided water to my area.
My real life experience.