[Loic]

Not if you import your wood and biomass out of South America or Asia from "officially well maintained" forests. Cut the trees in your country and suddenly you can see how well maintained are the forest delivering enough wood to run combined heat/power plants.

You need a staggering amount of wood and if you want to produce them in a really sustainable way, you simply cannot. You would be able to produce such amount of wood nicely in a sustainable way, you would sell it for furniture or construction wood for way more money.

The only heat from wood I know are really well (not only on the paper) managed are the ones directly working with a network of sawmill to reuse the waste and usually, they are small.