Solar, wind and hydro are energy sources that depend on weather and cannot be regulated except by throwing the generated energy away, thus with today's energy g

Solar, wind and hydro are energy sources that depend on weather and cannot be regulated except by throwing the generated energy away, thus with today's energy grids cannot be used as majority of the generating capacity. On the other hand biomass can be stored and used according to demand. Pumped storage is in the grand scheme of things horrendously inefficient in essentially any metric one cares about (energy efficiency, capacity per size, capacity for cost...).