The gasifier
The success of fossil fuels is also in the ease of consumption: regardless of who produced your car, you can refuel gasoline at any station, and do not need to know whether the fuel comes from Iran or Russia or Venezuela. In order to achieve this same simplicity for waste biomass, one can roast waste biomass with solar heat, with the goal to produce "solar carbon". The goal then is to develop a very simple gasifier - simple like a fossil oil or fossil gas burner - which can gasifier solar carbone regardless of its provenience. The gas can then be used for direclty providing heat, or for other purposes. Note, that almost half of the biomass atoms are hydrogen. So roasted biomass is an ideal hydrogen storage, which can be used for all kinds of future hydrogen technologies.