This project sets out to identify how the collective action strategies of prime bioenergy actors and the manner in which they form networks affect the legitimacy of a “newly emerging” bioenergy system. In light of this information, the second purpose is to see if it is possible to provide some lessons and best practices of networking strategies from more mature and expanding (British) bioenergy markets to emerging (Bulgarian) bioenergy cases. This project is a multiple case study comparing and analysing the bioenergy network formation in Bulgaria and UK and has a specific focus on political networks which are analysed from the standpoint of their functions to facilitate the diffusion of new technological systems. Even the project is limited to the political lobby organizations representing the largest proportion of all the market actors from feedstock to energy users, general information on other networks also will be collected.