There is one aspect of biomass generators I always thought was overlooked. The process is very similar to making charcoal.

If we used wood as a fuel source, heated it enough to release methane and other violitile gases to power a generator, but not enough to release the majority of carbon, that would leave us with charcoal.

Instead of trying to extract the remaining energy from the charcoal, we could bury it. Which would sequester the carbon, and be fertilizer. Growing clovers or legumes would add nitrogen.

I am sure I have something wrong, and maybe a better answer is to just not do it with dedicated crops as the article suggests. Maybe we could grow corn for food, but cram the stalks into the generator and sequester the remaining carbon?