New Here Working on a Solar System for My Needs

[Bozant]

So far I have 8 x 100W Renogy panels mounted on RV tilt brackets sandbagged on the roof, connected in parallel by branch connectors, 4 and 4, run 40ft by 2 pairs of 8AWG Mc4 cables to 2 ports on Yeti 3000.

I was planning to get 8 or 16 more of these panels and one or two more Yetis 3000 but scrapped the idea and decided to return the Yeti I already have realizing I would be limited to 1500W of AC at a time. I need at least 3000W.

l still want to add at least 8 more of 100W panels but am stuck at how to proceed with charger controller, battery bank and inverter charger.

Any suggestion, advise, 💡 would be greatly appreciated.

[J.P.M.]

Do you have a municipal code that requires a design review/approval/building permit ?

If this is a grid tie application, what info/regulatory hoops to jump through does your POCO require ?

[Bozant]

Sorry, forgot to say: it's off grid solar system.

[Mike90250]

How many sandbags is your roof good for ?

Stop buying little 100W panels, for just a bit more, you should be able to get 200-300w panels and have lots fewer interconnections and be able to use a decent MPPT controller

[Bozant]

How many sandbags is your roof good for ?

Stop buying little 100W panels, for just a bit more, you should be able to get 200-300w panels and have lots fewer interconnections and be able to use a decent MPPT controller

Well, l'm not strong or well, age and health wise; want and have to do this all by myself, zero help. The skylight hole on my roof is diagonally just wide enough for Renogy Eclipse panel to go through (20"). The smallest rigid framed 100W panel l could find. It weighs 15 lb. l was able to take them to the roof climbing 8ft stepladder and work with them.

[Bozant]

This is what I came up with so far staying with Renogy:

2 x 100A Rovers, new Renogy controllers wired in parallel. 4 Renogy 170AH Lithium batteries, 3000W Inverter Charger.

The downside with this setup is that Renogy 12V Lithium batteries are apparently only compatible with a 12V system but that maybe safer for me to work with?

Any thoughts, thanks?

[Bozant]

The sand bags?

Each panel with tilt and sandbag is about 40lb x 16 = 640lb. The roof is flat with a few feet ledge around. I'm bolting all the panels togather and then chaining them to the house.

[J.P.M.]

I'm not touching this one.

[sdold]

Make sure you label the panels with your name and phone number.

[Bozant]

Okey, so I'm taking the solar panels down and setting them on ground in back of the house. Also, staying with the Goal Zero Yeti 3000 generators.