Best source for pellets is switch grass/hay field

i was planning on using somthing like soy beans for a binding agent. I also have a maple house and all the sawdust from there I was hoping to include. look to waste first then to raw. making pellets from wood wouldent be a effective solution even the current stock is all sawdust like byproducts from lumber mills.
I am getting a pellet stove that can burn pretty much any thing that is dry and goes through the auger.
Shelburne Farms Tests Grass Pellet Heat
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