The International Agenda for Renewable Finance has pointed out the importance of evaluation of finance tools, reliability of risk release mechanism and social confidence of Support Schemes for REP. All kind of actors are necessary to be informed: States, Banks, Finance Experts, Insurance Experts, RES developers, Society. The optimum leverage delivers the greater package of private financing for the minimum public funds. It is the stability of revenues, not fixing of payment prices that guarantees warranted returns of investors if they really want to receive reliable warranties regarding RE Technologies. Different RE Technologies perform different level of exposure to different risk patterns, markets and barrier formations. In conclusion, instrument choice must correspond local actors ability to develop an effective management in RE Projects and to be modernized, in order to use the suitable instruments and local policy mechanisms, releasing barriers and risks