I am in the design and planning stage of building a greenhouse and AP system. I have been scrounging materials and trying to learn as much as possible. Last year I did a little bartering to help a gardencenter remove all the glass from a greenhouse so that they could replace it with plastic panels in exchange for about 3000 lbs of glass panes. I have been bringing home both food grade empty IBC totes and plastic 55 gal. drums free from my employer. I am considering using a large compost pile, 8' in diameter x 6' tall with a few hundred feet of black plastic tube in the interior to heat the water. I am not sure what type of fish I will be able to raise, but we would prefer tilapia if we can keep the water warm enough in the winter. I am planning to use a couple 75 watt solar panels, 6 VDC batteries for storage to run the pumps. I also will build a 4'x8' solar panel for additional heating and possibly a rocket stove for when the compost is cooling down and when cloudy. I keep finding more information, but realize that I have a lot to learn. There is a large AP business about a mile away that raises koi that I want to visit and I saw a couple year old post on another forum of a student at Alegany College which is in the same town as my employer that I would like to see if I can visit. I would gladly except any help and suggested reading that you might have.
kent