Okay, maybe not solve, but...
2.5 million people die in the US each year. 1/3 of those people are cremated. Estimates project that this number will rise to 60% within the next 15 years. That's 1.5 million people...let's conservatively say that totals 150 million pounds of dead people.
Now, the human body is a carbon gold mine. Hell, we spend our whole lives eating, and modern agriculture revolves around corn (aka biomass) and petroleum based products.
If the bodies are being burned anyway, why can't we use them to generate power?
How would you feel if you knew your house was powered by dead people?