Alongside the first quantitative and qualitative description of the fuel quantity streams, the amount of fuel likely to be required in 2020 was extrapolated using four different model scenarios, which were based on various different assumptions and development paths. In addition to a ?status quo? scenario, which extrapolates the trends of the last ten years to 2020, a pessimistic ?negative? scenario (declining growth rates), an optimistic ?positive? scenario and a very ambitious ?optimum? scenario were also developed. These scenarios show the potential future significance of biomass-fuelled local heating plants in the space heating market. The factors involved in the professional supply and, in particular, marketing of solid, woody biomass fuels in Styria were determined using the example of the regional biomass plants, and are presented in chapter 5. The challenge for the producers of biomass fuels in the agricultural sector lies in making high-quality heating materials available throughout the entire year in the quantities and qualities required. In this context, one objective is to close ecological and economic cycles. Taking into account the strengths and weaknesses identified in relation to the sale of fuels by rural producers, chapters 5.1 and 5.2 set out a plan for the development and joint marketing of regional biomass yards. The basis for this plan, which is the first of its kind, was provided by the estimations of the actual biomass demand in the selected principal regions, detailed market and sales analyses and, as the key factor, the implementation of a joint marketing strategy, which is presented in chapter 5.3. Intensifying the utilisation of solid, woody biomass for heat and power generation in Styria will only be possible if all partners in the timber industry act in accord, and if the material streams that are available for use as raw materials or for energy generation purposes are managed intelligently and in a target-driven manner.