Following the winter tree felling work on the orchard we've been left with two large piles of branches requiring disposal. I checked the rental cost for a suitable chipping machine and found one for £114/per day from the local Buildbase. Of course fuel would be extra. I looked at transporting the wood to a Local Authority dump for disposal, it needed the rental of a trailer (£40/day) and several trips to the dump.
Eventually I decided on a centuries old method and lit a bonfire. The piles of branches were cleared in 3 hours hard work. I'll be gym fit in no time if this carries on. No fossil fuel was required, though I did need a glass or two of cider afterwards to recover.