I just read an interesting article where spent coffee grounds are transformed into pellets, both heating (Java Flame) and grilling (JavaBrrewBQ).
The company, SRG(Sustainable Resources Group) claims a 35% higher BTU output; 11,170 VS 8,100 with 80% less ash.
Cost wise, a 20 pound bag of the cooking pellets sells for $20.00
sustainablesourcesgrouo.com listed as their contact info. *
This is new to me. How about you?
* This didn't work for me. I found their site searching Google. It's interesting!