This book serves as a guide for the representation of the operational activities of biogas plants in both commercial and tax law. From the establishment and choice of legal form to the financing phase, as well as the production, distribution, and administrative processes, important questions are answered with a focus on accounting representation. The structure of the book is organized chronologically according to these various phases, allowing practitioners, accountants, and tax advisors to find the right support at any time. Numerous calculation examples and templates make this work a valuable practical resource.