Some of our favorite camping spot don't have hookups. My rig has an Onan generator but it is noisy. I don't like running it.
So I've been looking into solar panels. They're still very expensive.
Earlier this year I bought a generator from eBay seller wonderfulidea
Wellington was really good to me. The first generator arrived on a Monday with extensive shipping damage but he sent a replacement immediately and I got it on Friday of that same week.
I see he is selling solar panels now and he offers the following info on his Xtreme Gadget website http://www.xtremegadget.com
There are three types of Solar Cells on the market.
Amorphous or Dual Junction Solar Glass - Cheapest but only 7% energy efficiency and 5 years service life. It is big and heavy. If the seller didn't specify, it is the Amorphorus. It is black solid sheet in appearance. It is about half the price per watt compare to Mono-Crystalline. Most of the solar panels on Ebay are of this type.
Poly-Crystalline - 25 plus years service life under direct sunlight and 13% efficiency. It is blue color circular or semi-circular silicon wafer form in appearance.
Mono-Crystalline - 25 plus years service life and up to 20% efficiency. This is the same type use in solar car racing. This type of solar cells is now in worldwide shortage because only a few companies can manufacture this type solar cell. The raw material which is a special kind of silicon sand ore is also in great shortage. It is in black color circular or semi-circular silicon wafer form in appearance
From it's appearance the solar panel on my Roadtrek must have been Poly-Crystalline.
Looks like a 40 watt Mono-Crystalline panel will cost me a little over CDN$300.00 from eBay by the time I get it. I have to think this over. I'll have to figure out how and where to mount it and how to run the wires etc. I'd have to purchase a good controller.
The Morningstar controller http://www.morningstarcorp.com in my Roadtrek seemed to do a great job maximizing the output of the small (maybe 20 watt) solar panel I had.