|
In my community -- very PC, but also very expensive -- there are people who form coops to gather the grease and make biodiesel, to save a buck. They get together in somebody's garage once a month and essentially do a mini-refinery. It's a lot of work and a bit dangerous, but some people will do it because of 1) ideology and 2) the need to save $100/month.
On the other end, you can now purchase biodiesel around here from a regional refiner/distributor. And that may be the way for some people. A fairly well-heeled friend just told me he's in the market for an old Mercedes to convert to biodiesel, now that he can buy the fuel easily.
I talked to a biodiesel distributor once, and he said that the problem with refining it commercially in large quantities is that the rendering industry can pay more for the waste grease, and is willing to. Renderers = Ivory soap. Yeah, it's not such a stretch to think about running your car on waste grease, when you realize that the same waste grease makes most of the bar soap we use.
|