Abstract
The current volatile economic environment and the evermore shorter technology cycles impact the way business is done today, especially in an emerging field like the renewable energy sector. Business modelling proves itself as an instrument, which may impact decisively the success or failure of a business. The aim of this article is to identify and present the key elements defining entrepreneurial models in the renewable energy field, as resulted from a synthesis of the recent literature available in journals indexed in international databases of mainstream publications about business models and entrepreneurial models as well as from empirical research performed in the past five years. The research result consists in a systematisation on past approaches on business modelling and the development and adaptation of the entrepreneurial model’s definition specific for the biogas sector.