I started pressing soybeans on my farm ... the processed oil and blended in fuel oil for the furnace.
A large operation near me saw the process and wanted to do their beans ... if you press you don't have to have the beans roasted, which also saves money. Problem around us is labor. Farming is pretty labor intensive and labor costs a lot of cash around here, so most farms don't want to commit labor to press and process oil.
I did some sunflower seeds, and they produced three times the oil in half the time ... and sunflower cake can also be used as a dairy and cattle feed.
My real interest is creating more income centers for farms and lowering operating costs. In order to do that there has to be an economy of scale ... there has to be a reasonable return for everyone concerned. That includes the small mill owner I'm working with who is just making ends meet. There is no doubt that biodiesel is going to have an impact on things over the next several years, but my guess is the small producers are gonna be snuffed out by state and federal regulation. That will be particularly true once big business gets fully invested.
So the coop was one idea for involving more businesses in the project ... and for increasing raw supply of oil seed for pressing. And yes, I'd like to give some rape seed a try ... maybe I could interest a couple of farms around here in planting it ... it's supposed to be good forage too. Thanks for you help and advise: Ken