Originally Posted by Ez2b
I have had the xantrex inverter for like 3 years just sitting in the garage thought I would just use what I had .I figured it would be big enough
Isn't the real problem not having enough battery storage as long as you can keep the batteries charge no matter how many panels you have?
I can see it running the battery's down really fast like using a microwave.
But isn't it true as long as you can get the batteries charged back up you should be okay?
If not you're suggesting a really small 100 hundred watt inverter like Home Depot or Lowes or Harbor Freight sells.
Ideally your system should be balanced. Meaning you gauge your needs with you battery storage and your production. A full house system needs to be able to charge the batteries for night time and be able to handle the load during the day at the same time. A buddy of mine who is off-grid can run his whole shop all day long 7 days a week during the summer and still have 100% on the batteries come evening. That way if we have a cloudy day he can still get a days work in. The batteries are more a buffer when the sun is shining and should not be drawn off of when the sun is shining. they only are used when there are shading issues (clouds or what have you). Shading causes serious degradation at an exponential rate. Even partial shading caused by dirty panels can seriously degrade your production.
So you need to gauge your needs first and foremost for an off-grid system- which includes your camper. What do you plan on powering? Are you going to be using AC? A microwave? Both at the same time? You need to think of these things.