I'm going to post my complete set up, with my understanding, so that I make sure to answer everyone's inquiries. This is such a complicated topic, with so many variables.
I got:
4 100 watt panels - @ $450 each $1,800 total
(CW would have installed this, but they didn't mention hooking it up! jus' saying. For a newbie to this whole thing, it would have been a disappointing disaster for me because I wouldn't have understood what I was/wasn't getting).
Case in point. My whole way down during the vortex, my propane would cut out every few hours. I thought some connection was failing. Turns out there is a "brain board" that allows the propane to fuel the furnace, and when my (little single inadequate) battery was low, I'd have to get up, start my engine, then get the generator going, then the propane would kick in for a few more hours. So much depends on the batteries! I was doing the right thing just by trial and error to survive the cold, but it sure was the hard way. But also a valuable lesson since I got to asking far more probing questions. I didn't need just solar, I needed a whole system.
1 MPPT 500 control - $250
Magnum/MS-2012 Inverter/Charger w control - $1,800
Yeah, that's a lot for the inverter. But I think this was the right thing. When I bought the rig, I was shown my "inverter," a $25 box from Radio Shack that would charge your cell phone off the engine battery! I don't want to be a complainer, but hope to let other newbies know that there are inverters, and then there are Inverters. Also, mine is an Inverter/Charger. I really am not the expert in this, but I have learned how essential it is that the inverter, charger, and monitoring system is key to handling the battery energy and whatever source it comes from. That could be with hookup. I was storing nothing in a small battery and no real inverter to start with. I think it's just unfortunate that an inverter that charges a cell phone, and an inverter that is the heart of your solar and battery system can be talked about in the same breath, as if they were the same thing.
4 gpL-27 Lifeline batteries $1,316 (these are AGM, glass mat)
Cables -$250
The total cost for me was $7,000. It's not accurate to say that was for "solar" It was really for a whole set up I sorely needed (inverter/charger, batteries, cables and brackets (hand made at his shop), top of the line). This is my investment to get me free of camp ground hookup. Someone else may have started with a better battery and inverter already system installed, I was starting with nothing, and went fairly high end. I hope it serves me well in the long run.
So far I'm really pleased. From getting up all night to keep from freezing to death, to make anything work - to going for days with everything running off grid. I won't have the AC, but that's all. I can have my computer on all day, do cooking (microwave) and whatever, and if the sun is out, it doesn't put a dent in my battery energy storage. I can go for a few days on cloudy with the battery, and rely more on the propane.
I'm going to post pictures of everything (and the heater, Mitch) when I get to my next stop with better wifi.
The guy who did this install, and this was a complete system, was John Palmer, 941-928-4573. You can say I (Sharon) recommended his install because he did do a great job. You could also say I was disappointed not to get my full orientation, and that hurt. I'd like to mend fences with this guy, he just needs to know he's got to get a bedside manner and I hope he mellows for you.
- Sharon