Here is their answer to the emissions / regulation Q's:
http://www.airburners.com/ab-regs.HTM
Their claim is that this method has less environmental impact than grinding / mulch operations.
"Additionally, as wood waste decays, it releases gases such as methane and carbon monoxide. Significantly more harmful gas is released over the lengthy period of decay than is released by burning." - air curtain web site.
I would be able to accomplish this operation with only my current equipment. If I chose to grind I will have a considerably high equipment investment, not to mention operating costs.
I don't have a strong desire to sell mulch. I am allowed to store debris on my property for up to 12 mos, but am not permitted to "compost".
I have not investigated the power generation units, but assume the cost will be prohibitive for me. I have found several used models on the market that are within my price range.
Conceptually, this seems to make a lot of sense to me. I am hoping someone has used one before and can offer some insight?
I did get zoning and fire department approval for one of these units when I purchased the property.