Batteries to accomodate 2-100w panels

[CatchingSun]

I am 35N with plans of running off 12v for the time being. What can I reasonably expect to produce at 35N and what would be the appropriate battery size/capacity? Consumption will be adjusted to coincide with production. Appreciate any suggestions.

[Mike90250]

How about a zip code or nearby city. There are only a few thousand miles of 36N

200W of pv panels. I'd use a Morningstar Suresine 300w. It's very efficient, has a huge surge capacity (600w for 10 min) It won't start a standard fridge, but would likely start a new inverter-compressor fridge
(but you don't have enough panels to run a fridge for long.

I'd use a pair of 6V 200ah golf cart batteries, and you can manage loads up to about 800 watt hours, unless your site is exceptionally clear and sunny.

[CatchingSun]

Thanks Mike, I will look into that inverter . Northern CA. Really interested in running small things that I can within reason, which I will estimate more precisely when the system is in effect. 2-6V 200ah batteries in series sounds like a good start. These batteries are 50% of the total rated capacity generally speaking? Panels will have quite a bit of sunlight during the winter and summer.

Will this ( https://www.amazon.com/Controller-Ba...rge+controller ) work with the two panels in series attached to a 12v system? If not I will simply run them in parallel?

Thanks Again.

[Mike90250]

That controller is a PWM, so you have to use the panels in parallel

[CatchingSun]

Received the CC today. According to the spec sheets it can be used with 24v battery configuration and a max input voltage of 46v from the panels.

[Mike90250]

Received the CC today. According to the spec sheets it can be used with 24v battery configuration and a max input voltage of 46v from the panels.

So ?
It's still a PWM controller.. With a 12V system, panel Vmp over 20V, you start wasting power

PWM controllers, work with Amps in = Amps out. a 350W panel @ 4 A will give you the same harvest as a 100w panel @ 4A

[CatchingSun]

So ?
It's still a PWM controller.. With a 12V system, panel Vmp over 20V, you start wasting power

PWM controllers, work with Amps in = Amps out. a 350W panel @ 4 A will give you the same harvest as a 100w panel @ 4A

I was looking for a 24v (4x6v) suggestion for the batteries, but in the interim my battery arrangement will be as you suggested (2x6v series) with the option of 24v configuration later.

Thanks for the help.