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I currently have fifteen 325watt solar panels and nine 275 solar panels along with qty 12 115ah batteries. I am trying to build a system that will take in the watts from my panels and send it to the charge controllers and then from the batteries to a GTIL2 with limiter then to my home so I am...

I am unfamiliar with Shading but if this means any shade on the panels then they will be in sun all day except for over casting. I am also trying to figure what strings I can use along with parallel or series or a combination of the both.

Thanks for responding. I will list what I have now and what I'm going to purchase as soon as I get home from work

I'm located in Thompson CT

DIYrich, are you from CT? it sounds like it. That is cool that your from NE. So i would need permits to do the install and not have to use a company for the solar system to be installed. I was definitely trying to avoid the whole solar scam they are doing because a neighbor of mine got taken for...

Just an FYI I am buying 1 more of the 325 watt panels so I have a total of 16 the 275 watt panels I might use for something else such as my hot water heater with DC elements. would it be wise to buy 5 more 325watt panels to make it a total of 20 panels?

I almost forgot, i am getting the panels from a guy in Woodstock CT for $50 a panel

Im sorry guys. I didn't mean purchase. I meant to say post what I was going to purchase once I get this figured out.

I am trying to stay away from any contracts from the grid. They kill us here for any type of contract and all kinds of permits are over $4500 here for it as well. This is what I have so far: Solar Panels 15 - 325 watt , Impp 8.72A, Vmpp 37.3V, Isc 9.27A, Voc 46.0V 9 - 275Watt solar...

I just don't know how to make this fully offgrid if I can and only use Grid tie when needed. I am totally new to this and trying to learn. I do apologize for anything I lack knowledge on guys.

so you are saying to place a switch between the grid tie on the house and the solar/batteries? What type of switch would this entail? I am also trying to figure how to figure the strings as well as what inverter to use and if I need a panel between the grid and solar setup to feed the house.