Okay. Hopefully someone here can help me answer a question (or two) that I have regarding this technology. Recently, as anyone can see, I have been uploading a number of resources that I have compiled, with a LOT of help from @Witch Doctor 01, and others, as well as files I have been collecting myself, over time. I also have found similar files already uploaded here, so as not to duplicate the uploads, if possible. Some of these resources are on topics regarding biogas, biodiesel, and wood gasifiers. Granted, I will admit that we have yet to try any of this technology. But, I can say that I have started collecting the parts necessary, to try a biogas digester or wood gasifier. Or, maybe even both... Anyway, my main question is, why hasn't this technology, which has been around for a very long time, not taken off? One would think that everybody and his brother would have some of this tech in their backyard, by now. Are people just too lazy to concern themselves with it, especially in First World countries? I mean, after all, it is a heck of a lot easier just to go to the petrol station and say, "Fill 'er up, Mac." Or, is it something else entirely. I'm sure, unlike some "blue states", where they seem to even illegalize rainwater harvesting, this tech should be something to consider, no? With the cost of LPG, NG, and petrol and diesel in today's world, would it not seem logical to try other ways to power vehicles, generators, and even stove top burners? Here in Cambodia, petrol is currently $1.00 / Liter, or $3.78 USD / gallon. I can only imagine, after the initial investment, how little it would cost to produce my own biogas. Here is a video I just viewed, that helped me to follow through and create this topic: The FEMA file he refers to in the video, is a resource uploaded on this site, and LOCATED HERE.