Financing of renewable energy sources (RES) is considered a system task in the development of the Russian fuel and energy complex. RES eliminates the problem of shortage and availability of energy infrastructure (generating and grid capacities, means of transporting electricity to the consumer) for remote and island territories of Russia, allows increasing the export potential of the Ministry of Industry and Trade, and supports the high-tech potential in the Russian electric power industry. The process of attracting debt financing to the renewable energy sector is complex and ambiguous. The applied project financing is relevant only for large businesses, while the global energy paradigm is focused on decentralization and involvement of small-scale generation agents in the energy sector. Supply chain Finance (SCF) tools are relevant for both small and medium-sized businesses and large companies. Multinational and multicommodity corporations having significant assets at their disposal profitably transfer them in the contours of their portfolio strategies and at the stages of technological transformation of their supply chains, using such SCF tools as reverse factoring, supplier financing and purchase order financing. Small and medium-sized enterprises consider SCF as one of the additional ways of financing that does not increase the debt burden and can be issued with a minimum of documents.