@sheddi An old pal grows ~8 acres of short-cycle coppiced willow to heat his holiday cottages. His 2-year cycle is not an indefinite wait.
He hasn't eliminated diesel from the harvesting, but no longer burns it for heat. His total energy usage has shifted from 100% fossil to ~99% renewable.
You excluded all #biomass from the renewable category, which is false.
Have you calculated the fossil-vs-renewable energy mix of the imported bio fuel you lament?