The energy balance question is the easiest one to answer in the sense that if you use data and farming methodologies from the late 1970s and ethanol technology from the late 1970s you would get a negative energy balance. If you're using today's technology and today's agricultural practices, you'd get a positive energy balance on a life cycle basis. What that number is varies a bit depending on where you're located and what your agricultural industry looks like there. Agriculture Canada's numbers for corn and wheat are about two to one--so positive. If you were using a coal-fired ethanol plant and you were irrigating the corn, it would be something less than that, probably about one and a half. It depends, like any other life cycle analysis, but for the Canadian context the numbers are about two to one.
In terms of having enough feedstock, absolutely.... Just using today's technology, using grains and oilseeds, the amount of wheat we export from Canada alone is enough to almost meet double the 5% requirement. We have a lot of feedstock.
If you add in cellulose technology, where you're making it from wood...and I would compliment the Quebec government, which has made investments in this area for a number of years. Their feedstocks are almost limitless. So I think that issue is an easy one to address.