I see a European company making coal pellets mostly for power plants but they look just like wood pellets except the are black.I wonder could they be burned in a pellet stove if they could one would get more btu's.Here is the link any thoughts.
http://riverbasinenergy.com/pages/products/bio-coal-pellets.php
http://riverbasinenergy.com/pages/products/bio-coal-pellets.php