In your best estimate, as I imagine you have already thought this out, how much could waste products (food waste, sewage, yard debris, agricultural byproducts etc) offset current energy needs?

I did a calculation like this in my thesis. If I recall correctly, I think the gross was enough to replace our current liquid fossil fuel usage. But the net is the problem. The EROEI is currently not good enough. At present, it probably makes the most sense to burn the waste to produce electricity, but that poses problems of its own.

Still have the footage from the Ethanol plant, just procrastinating on making something professional to go with it.

Someone e-mailed me yesterday asking some specific questions about energy usage in sugarcane ethanol plants, and I told them you might be able to get them in touch with someone.

Wait a minute here, Robert you actually say that that the gross of waste products could replace our current liquid fossil fuel usage? Could you confirm this with some solid numbers?

I cannot believe that there is a daily stream of 3180000000 liters of waste fats in the US that could be transformed to biodiesel...

Please explain.

Roger From The Netherlands

Is it possible that they included the fat man behind the steering wheel.

Wait a minute here, Robert you actually say that that the gross of waste products could replace our current liquid fossil fuel usage?

Yes, but that’s all waste streams, not just waste oil. We have tremendous amounts of paper, forestry, and farm wastes that could potentially be turned into fuel. As I said, it is the net that is the problem.

Could you confirm this with some solid numbers?

No, because I am on a very transient Internet connection at the moment. I rarely stay connected for more than 5 minutes, and pages can take 5 minutes to load. Therefore, anything requiring research is problematic at the moment.

I cannot believe that there is a daily stream of 3180000000 liters of waste fats in the US that could be transformed to biodiesel...

Not all waste biomass is waste fat.