Financial support systems for renewable energies.

Public support tools are necessary for the deployment of renewable energies given the cost still higher than the market price of certain renewable energy sectors, their deployment could not be done on the sole criterion of competitiveness in a functioning market.

The incentive mechanisms put in place are specific to each sector and must be periodically adapted to take account of technical and economic developments.

Two main financial support mechanisms are deployed globally :

✔ Guaranteed purchase tariffs: This mechanism provides that the electricity network operators conclude, with the producers who request it, a purchase contract for the electricity produced by certain sectors under conditions, in particular price, which may be determined by two instruments: the launch of a call for tenders or the publication of an order.

✔ Remuneration mechanisms on the market with a premium: In this system, producers sell their energy on the wholesale market and receive additional remuneration in the form of a premium proportional to the energy produced.