Can I use my lawn clippings for pelleted energy?
No, this is not feasible. Reason No. 1: Even if you have a very large lawn, the number of pounds of grass biomass in clippings is not significant. Reason No. 2: Immature, generally fertilized, grass leaves produce lawn clippings that will be very high in ash content, probably over 10%. Better to minimize lawn fertilization and mulch mow to recycle these nutrients back into your lawn.