Originally Posted by

**Azel**
**I was reading a post in the General section where a poster wanted to build a off-grid system without batteries, and I read that the battery bank has to be matched to the total solar panels being used. I did not know this. So can you answer this question.**

If I use the standard 6V golf cart batteries (Amp Hours), how many batteries would I need for solar panels totaling 1000 watts? And how many batteries for 2000 watts? (I had decided to use one of the two sizes, but I did not know that I had to match it with a certain number of batteries. The number of batteries I will need to buy may effect my decision on the size.)

Also, I keep reading about 12volt, 24 volt, 48 volt systems. Does it matter which voltage I use assuming I am going to power an DC to AC inverter to run some house appliances. If I understand correctly, the voltage you use only effects the wire size. I could be wrong.

I really don’t mind buying a book on building a solar system, and I hate posting simple questions like this, but I don’t want to drudge through a 300 page book full of graphs and math. I don’t plan to make a life’s work on the subject. What I need is a 25-50 page book on the subject that will explain it in simple math. I own a volt ohm meter and I know how to read it. I also own a power watt meter which I find handy for checking the load of appliances. Perhaps there is a web site that has the math laid out in a straight forward manner. I did find a few good articles on the Sun and Wind web site.

Thanks

Azel